阅读说明：本技术 控制阀 (Control valve ) 是由 U.凯勒 D.韦塞利 M.蒂兰 于 2018-04-23 设计创作，主要内容包括：描述了用于调节HVAC系统中的流体流的控制阀(100),控制阀(100)包括：限定流路(12)的阀壳体(11)；阀调节主体(13),其布置于流路(12)中且可针对流体流而在关闭位置与打开位置之间调整；以及流调节插入件(14),其构造成在跨越流调节插入件(14)的一压力差范围内调节流体流,其中,流调节插入件(14)包括在空间上固定的销(141)和包围销(141)的至少一部分的可弹性变形的环形节流部件(142),其中,环形节流部件(142)限定流调节插入件(14)中的孔口(143),以用于传递流体流,可通过环形节流部件(142)在跨越流调节插入件(14)的压力差下的变形而修改孔口(143)。(A control valve (100) for regulating fluid flow in an HVAC system is described, the control valve (100) comprising: a valve housing (11) defining a flow path (12); a valve regulating body (13) arranged in the flow path (12) and adjustable between a closed position and an open position for fluid flow; and a flow conditioning insert (14) configured to condition a fluid flow over a range of pressure differences across the flow conditioning insert (14), wherein the flow conditioning insert (14) comprises a spatially fixed pin (141) and an elastically deformable annular throttling member (142) surrounding at least a portion of the pin (141), wherein the annular throttling member (142) defines an aperture (143) in the flow conditioning insert (14) for passing the fluid flow, the aperture (143) being modifiable by deformation of the annular throttling member (142) under the pressure differences across the flow conditioning insert (14).)

1. A control valve (100) for regulating fluid flow in an HVAC system, the control valve (100) comprising:

a valve housing (11, 211, 212, 311, 312, 411, 412, 511, 512) defining a flow path (12, 22, 32);

a valve regulating body (13) arranged in the flow path (12, 22, 32) and adjustable between a closed position and an open position for the fluid flow; and

at least one flow conditioning insert (14, 24, 34, 44, 54) configured to condition the fluid flow over a range of pressure differentials across the flow conditioning insert (14, 24, 34, 44, 54), wherein,

the flow conditioning insert (14, 24, 34, 44, 54) comprises a spatially fixed pin (141, 241, 341, 441, 541) and an elastically deformable annular throttling member (142, 242, 342, 442, 542) surrounding at least a portion of the pin (141, 241, 341, 441, 541), wherein the annular throttling member (142, 242, 342, 442, 542) defines an aperture (143, 243, 343) in the flow conditioning insert (14, 24, 34, 44, 54) for communicating the fluid flow, the aperture (143, 243, 343) being modifiable by deformation of the annular throttling member (142, 242, 342, 442, 542) under a pressure differential across the flow conditioning insert (14, 24, 34, 44, 54).

2. The control valve (100) of claim 1, wherein the flow regulating insert comprises at least two spatially fixed pins (141, 241, 341, 441, 541) and at least two elastically deformable annular throttling members (142, 242, 342, 442, 542) each surrounding at least a portion of one of the pins (141, 241, 341, 441, 541).

3. Control valve (100) according to claim 1 or 2, wherein the flow regulating insert (14, 24) comprises a carrier plate (144, 244) extending across the cross-section of the valve housing (11, 211) at the location of the flow regulating insert (14, 24) and comprising a recess (1441, 2441) for receiving the pin (141, 241) and the annular throttling member (142, 242), wherein the annular throttling member (142, 242) defines the aperture (143, 243) between the pin (141, 241) and a portion (1443) of the carrier plate (144, 244).

4. A control valve according to claim 1 or 2, wherein the flow regulating insert (34, 44, 54) comprises a frame element (346, 446, 546) for receiving the pin (341, 441, 541) and the annular throttling member (342, 442, 542), wherein the annular throttling member (342, 442, 542) defines the aperture (343) between the pin (341, 441, 541) and a portion of the frame element (346, 446, 546), the flow regulating insert (34, 44, 54) comprising a carrier plate (344, 444, 544) extending across the cross-section of the valve housing (312, 412, 512) at the location of the flow regulating insert (34, 44, 54) and comprising a recess for receiving the frame element (3441).

5. A control valve according to claim 4, wherein the frame element (346, 446, 546) comprises a recess (3461) forming a seat for the annular throttle member (342).

6. Control valve according to one of claims 1 to 5, wherein the valve housing (211, 312, 412, 512) comprises a recess (2111, 3111) for receiving the flow regulating insert (24, 34, 44, 54).

7. Control valve according to one of claims 1 to 6, wherein the valve housing (211, 212, 311, 312, 411, 412, 511, 512) comprises a first and a second valve housing part (211, 212; 311, 312; 411, 412; 511, 512), wherein the flow regulating insert (24, 34, 44, 54) is fixedly held between the first and second valve housing part (211, 212; 311, 312; 411, 412; 511, 512).

8. The control valve (100) according to one of claims 1 to 7, wherein the valve regulating body (13) is rotatable about a rotational axis (131) between the closed position and the open position for the fluid flow.

9. The control valve (100) according to claim 8, wherein the valve regulating body (13) is a ball with a through hole.

10. The control valve of one of claims 1 to 9, wherein the flow regulating insert is disposed within the valve regulating body.

11. Control valve (100) according to one of claims 1 to 9, wherein the flow-regulating insert (14, 24, 34, 44, 54) is arranged upstream or downstream of the valve-regulating body (13) with respect to the flow path (12, 22, 32).

12. The control valve (100) of one of claims 1 to 11, wherein the flow regulating insert (14, 24, 34, 44, 54) comprises a recess (2413) that contributes to the orifice (143, 243, 343) for communicating the fluid flow.

13. The control valve of one of claims 1 to 12, wherein the control valve is a six-way valve comprising two consumption ports and four source ports, wherein the four source ports comprise two first source ports for a first fluidic circuit and two second source ports for a second fluidic circuit, wherein one of the at least one flow adjustment inserts is arranged in at least one of: the two consumption ports and the four source ports.

14. The control valve of claim 13, wherein the control valve comprises a first one of the at least one flow conditioning insert and a second one of the at least one flow conditioning insert, wherein the first and second flow conditioning inserts are configured to condition a flow rate to a first specific value and a different second specific value, respectively.

15. A flow regulating insert (14, 24, 34, 44, 54) for positioning in a flow path of a control valve (100) according to one of claims 1 to 12, comprising a spatially fixed pin (141, 241, 341, 441, 541) and an elastically deformable annular throttling member (142, 242, 342, 442, 542) surrounding at least a portion of the pin (141, 241, 341, 441, 541), wherein the annular throttling member (142, 242, 342, 442, 542) defines an aperture (143, 243, 343) in the flow regulating insert (14, 24, 34, 44, 54) for transferring the fluid flow, the aperture (143), a) being modifiable by deformation of the annular throttling member (142, 242, 342, 442, 542) under a pressure difference across the flow regulating insert (14, 24, 34, 44, 54), 243. 343).

16. The flow conditioning insert (14, 24, 34, 44, 54) of claim 13, wherein the flow conditioning insert (14, 24, 34, 44, 54) comprises at least two spatially fixed pins (141, 241, 341, 441, 541) and at least two elastically deformable annular throttling components (142, 242, 342, 442, 542) each surrounding at least a portion of one of the pins (141, 241, 341, 441, 541).

17. The flow conditioning insert (14, 24) as set forth in claim 14 or 15 wherein said flow conditioning insert (14, 24) comprises a carrier plate (144, 244), said carrier plate (144, 244) comprising a recess (1441, 2441) for receiving said pin (141, 241) and said annular throttling member (142, 242), wherein said annular throttling member (142, 242) defines said aperture (143, 243) between said pin (141, 241) and a portion (1443) of said carrier plate.

18. The flow conditioning insert (34, 44, 54) of claim 13 or 14, wherein the flow conditioning insert (34, 44, 54) comprises a frame element (346, 446, 546) for receiving the pin (341, 441, 541) and the annular throttling member (342, 442, 542), wherein the annular throttling member (342, 442, 542) defines the aperture (343) between the pin (341) and a portion of the frame element (346, 446, 546), the flow conditioning insert (34, 44, 54) comprising a carrier plate (344, 444, 544) comprising a recess (3441) for receiving the frame element (346, 446, 546).

19. The flow conditioning insert (14, 24, 34, 44, 54) as set forth in one of claims 13-16, wherein the flow conditioning insert (14, 24, 34, 44, 54) includes a recess (2413) that contributes to the orifice (143, 243, 343) for communicating the fluid flow.

Technical Field

The present invention relates to a control valve for regulating fluid flow in an HVAC system and a flow regulating insert for positioning in a flow path of the control valve.

Background

The use of control valves to regulate fluid flow plays an important role in HVAC systems (HVAC: heating, ventilation and air conditioning). In particular, it is desirable to regulate the flow rate to a certain value over a range of pressure differences across the control valve. Such so-called pressure independent control valves have several advantages, such as avoiding over-or under-supply of devices of the HVAC system, such as individual air conditioners, improving energy efficiency, fast and reliable selection of valves, etc.

Known solutions for regulating a fluid flow with a control valve typically use a spatially movable regulating body which is able to reduce the flow rate by cooperating with a valve seat. Such a solution is shown in WO2014/198412a1, in which a pressure equalization insert for a control valve is described. The pressure equalization insert includes a housing having an actuation member movably mounted thereto and configured to at least partially direct a flow stream regulated by the valve, and, when the pressure equalization insert is installed, the actuation member cooperates with a valve seat to modulate the flow stream depending on a pressure differential prevailing in the flow stream.

Other known solutions involve self-deformation of the resilient member as shown for example in US 24584929, in which a fluid control device is described. The fluid control device includes: a seat member having a central opening defined by at least one frustoconical surface; and a resilient annular member seated on the opening on the seat member. The ring member has a central opening that is substantially aligned with the opening in the seat member. The frustoconical surface of the seat member defines at least a portion of the opening of the seat member and is arranged to expand toward the resilient annular member. The frustoconical surface is adjacent the resilient annular member and terminates at a point spaced radially outwardly from the opening of the resilient annular member. The central portion of the annular member is deflectable by fluid pressure into the frustoconical portion of the seat member opening.

The solutions known from the prior art have a complex structure or are limited in performance in terms of the flow rate available or the pressure range that can be operated.

Disclosure of Invention

It is an object of the present invention to provide a control valve for regulating fluid flow in an HVAC system and a flow regulating insert for positioning in a flow path of the control valve that at least partially improves the prior art and avoids at least part of the mentioned disadvantages of the prior art.

According to the invention, this object is achieved by the features of the independent claims. Further advantageous embodiments are derived from the dependent claims and the description.

According to an aspect of the invention, the object is particularly achieved by a control valve for regulating a fluid flow in an HVAC system, the control valve comprising: a valve housing defining a flow path; a valve regulating body arranged in the flow path and adjustable for fluid flow between a closed position and an open position; and at least one flow conditioning insert configured to condition a fluid flow over a range of pressure differentials across the flow conditioning insert. The flow conditioning insert includes a spatially fixed pin and an elastically deformable annular throttling member surrounding at least a portion of the pin. The annular throttling member defines an aperture in the flow conditioning insert for communicating a fluid flow, the aperture being modifiable by deformation of the annular throttling member under a pressure differential across the flow conditioning insert.

A portion of the orifice may be defined between the annular throttling member and the pin. Another portion of the orifice may be defined between the annular throttling member and another portion of the flow conditioning insert. The pin may include a retaining surface, for example formed by a bridge, for retaining the annular throttling member within the flow conditioning insert. Fluid flow may be transferred between the bridges. In an embodiment, the pin is tapered.

The flow conditioning insert provides the following advantages: the flow rate may be adjusted to a specific value determined by the size of the orifice and the characteristics of the annular restriction member (such as, for example, material or sizing). For example, increasing the pressure differential across the flow conditioning insert causes the annular throttling member to deform, thereby reducing the size of the orifice, which may limit the flow rate. Advantageously, the annular throttling component abuts a portion of the flow conditioning insert (e.g., a pin and/or a seat formed within the flow conditioning insert) when deformed, which increases the range of pressure differences that the flow conditioning insert can withstand when conditioning the flow without having to increase the thickness of the annular throttling component.

The flow regulating insert has the advantage of a simple construction that reduces the failure rate compared to e.g. solutions with a movable insert and a valve seat.

In an embodiment, the flow regulating insert comprises at least two spatially fixed pins and at least two elastically deformable annular throttling members, each surrounding at least a part of one of the pins. By varying the number of pins and ring-shaped throttling members, the number of orifices can be varied so that the total flow rate can be modified and adapted to the specific requirements of the control valve. The arrangement of at least two pins and an annular throttling member provides the following further advantages: multiple orifices can be realized in a simple manner that can improve the cavitation (cavitation) properties of the control valve.

The annular throttling member responsible for modifying the orifice for the fluid flow by deformation offers the following advantages: the flow-regulating insert may be designed in a compact manner with a reduced thickness compared to known solutions. In particular, the structure of the flow-regulating insert enables a linear design of the control valve, which is not typically the case with solutions with movable inserts. Moreover, the flow conditioning insert provides the following advantages: the straight direction of the fluid flow is advantageous so that the range of ubiquitous laminar flow can be increased. Furthermore, the pressure difference across the flow regulating insert can be kept low compared to known solutions with movable inserts. Laminar flow of the fluid stream has the following advantages: the generation of flow-induced vibration and noise is reduced, and flow regulation properties (such as pressure independence) can be improved.

The absence of a movable insert (such as a piston) provides the following additional advantages: adverse relaxation effects can be avoided.

Since the annular throttling member surrounds at least a portion of the pin and bears against a portion of the flow conditioning insert, improved robustness, increased operating range, and reduced size may be provided as compared to solutions that rely on utilizing a hole within the resilient member to self-deform the resilient member.

In an embodiment, the flow conditioning insert is designed in a mirror-symmetrical manner with respect to a plane perpendicular to the flow path. This has the following advantages: the flow rate can be adjusted independently of the direction of fluid flow.

In an embodiment, the flow adjustment insert comprises a carrier plate extending across a cross-section of the valve housing at the location of the flow adjustment insert and comprising a recess for receiving the pin and the annular throttling member, wherein the annular throttling member defines an aperture between the pin and a portion of the carrier plate.

The carrier plate may include a plurality of recesses for receiving the pin and the annular throttling member. The multiple pins and annular throttling member received in the recess of a single carrier plate provide the advantage of increasing the simplicity and robustness of the structure. The recess may be designed in such a way that the pin can be received in the recess in a form-fitting and/or press-fitting manner. The pin may include a bridge formed at one end of the pin, the bridge being connected at one end to a common mating ring. The mating ring may enable the pin to be received in the recess in a form-and/or press-fit manner. In particular, the pin may be retained in the carrier regardless of the direction of fluid flow.

In an embodiment, the carrier plate comprises a recess forming a seat for the annular throttle member. The seat provides the following advantages: it is possible to avoid releasing the annular throttling member from the flow conditioning insert at high pressure differentials across the flow conditioning insert. The annular throttling member may abut a portion of the seat when deformed. This part of the seat may thus form a bearing surface for the annular restriction member.

In an embodiment, the flow regulating insert comprises a carrier plate extending across a cross-section of the valve housing at the location of the flow regulating insert, wherein the pin is integrally formed with the carrier plate. The pin may be connected with the carrier plate by a bridge forming a retaining surface for retaining the annular throttling member within the carrier plate. Fluid flow may be transferred between the bridges.

In an embodiment, the flow adjustment insert comprises a frame element for receiving the pin and the annular throttling member, wherein the annular throttling member defines an aperture between the pin and a portion of the frame element, the flow adjustment insert comprising a carrier plate extending across a cross-section of the valve housing at the location of the flow adjustment insert and comprising a recess for receiving the frame element. For a plurality of pins and annular throttling members, the flow conditioning insert may include a frame element for each pin. The pin, the annular restriction member and the frame element may form a replaceable flow regulating unit. The frame element can be held in the recess of the carrier plate in a form-fitting and/or press-fitting manner.

In an embodiment, the flow conditioning insert comprises: at least two pins and at least two annular throttling members, each of the annular throttling members surrounding at least a portion of one of the two pins; and at least two frame elements each for receiving one of the two pins and the annular restriction member.

In an embodiment, the frame element comprises a recess forming a seat for the annular restriction member. The seat provides the following advantages: it is possible to avoid releasing the annular throttling member from the flow conditioning insert at high pressure differentials across the flow conditioning insert. The annular throttling member may abut a portion of the seat when deformed. This part of the seat may thus form a bearing surface for the annular restriction member.

In an embodiment, the valve housing comprises a recess for receiving the flow regulating insert. The flow regulating insert may be received in a recess of the control valve in a form-fit and/or press-fit manner such that fluid flow may be restricted to flowing through an aperture defined by the annular throttling member.

In an embodiment, the valve housing comprises a first and a second valve housing part, wherein the flow regulating insert is fixedly held between the first and the second valve housing part. The flow regulating insert may be held between the first and second valve housing parts in a form-and/or press-fit manner. The first or second valve housing components may include a recess for receiving a flow regulating insert. Additionally, the first or second valve housing part may comprise a bearing surface for clamping the flow regulating insert.

In an embodiment, the valve adjustment body is rotatable about an axis of rotation between a closed position and an open position for fluid flow.

In particular, the rotatable valving body may be a ball with a through hole such that the control valve forms a ball valve. By using multiple pin and annular throttling members in combination with a ball valve, the cavitation properties of the ball valve can be improved by distributing the fluid flow over multiple orifices.

In an embodiment, the flow regulating insert is arranged within the valve regulating body. By placing the flow regulating insert in the valve regulating body, a particularly compact design can be achieved. Furthermore, a control valve with a flow regulating insert arranged within the valve regulating body may be particularly suitable for symmetrical designs in which the flow rate may be regulated independently of the direction of the fluid flow.

In an embodiment, the flow conditioning insert is arranged upstream or downstream of the valve conditioning body with respect to the flow path.

In an embodiment, the flow conditioning insert comprises a recess that contributes to the orifice for communicating the fluid flow. In embodiments with a carrier plate, the carrier plate may comprise a recess that contributes to the aperture. In embodiments with a frame element, the frame element may comprise a recess that contributes to the aperture. In a variant, the pin comprises a recess contributing to the aperture. The recess contributing to the aperture provides the following advantages: the orifice may be modified by compressing at least a portion of the annular throttling member into the recess under a pressure differential across the flow conditioning insert. The flow rate to which the fluid flow is regulated may be defined by altering the design of the recess contributing to the orifice and/or the size of the annular restriction member. The recess may be arranged such that the annular restriction member defines a plurality of apertures. Dividing the orifice into a plurality of orifices by arranging the depression provides the advantage of being able to improve cavitation properties.

Preferably, the flow conditioning insert is positioned such that the plane of the annular throttling member extends perpendicular to the flow path.

In an embodiment, the annular restriction member has an annulus (annulus) with a diameter equal to or less than half the inner diameter of the control valve at the location of the flow regulating insert. This dimensioning of the annular restriction member provides the following advantages: a plurality of pins and ring-shaped throttling members may be arranged in parallel at the same level in the flow path.

In an embodiment, the control valve is a six-way valve comprising two consumption ports and four source ports, wherein the four source ports comprise two first source ports for the first fluid circuit and two second source ports for the second fluid circuit. The first fluid circuit may be a cooling circuit and the second fluid circuit may be a heating circuit. The six-way valve may comprise one of the at least one flow regulating insert according to the invention, which is arranged in at least one of the following: two consumption ports and four source ports.

In an embodiment, the control valve (in particular, the six-way valve) comprises a first of the at least one flow regulating inserts and a second of the at least one flow regulating inserts, wherein the first and second flow regulating inserts are configured to regulate the flow rate to a first specific value and a different second specific value, respectively.

A first of the at least one flow conditioning insert may be disposed in one of the two source ports and a second of the at least one flow conditioning insert may be disposed in one of the two second source ports. Thus, for each fluid circuit, there may be a specific flow conditioning insert. With the first and second flow conditioning inserts, individual conditioning of the fluid flow can be achieved for each fluid circuit. In particular, the two flow-regulating inserts can be configured differently from one another to regulate the flow rate to different specific values for the two fluid circuits (for example, for the hot water circuit and the cold water circuit). Thus, the two flow conditioning inserts may include orifices of different sizes and annular throttling members of different characteristics (such as, for example, material or size design).

In an embodiment, the flow regulating insert is arranged in one of the consumption ports, which allows to regulate the fluid flow to the same specific value for both fluid circuits.

In a variant, for the case where flow regulation is required for only one of the fluid circuits, one flow regulation insert is arranged in only one of the four source ports.

According to a further aspect, the invention also relates to a flow regulating insert for positioning in a flow path of a control valve according to the invention, the flow regulating insert comprising a spatially fixed pin and an elastically deformable annular throttling member surrounding at least a portion of the pin, wherein the annular throttling member defines an orifice in the flow regulating insert for passing a fluid flow, the orifice being modifiable by deformation of the annular throttling member under a pressure difference across the flow regulating insert.

In an embodiment, the flow regulating insert comprises at least two spatially fixed pins and at least two elastically deformable annular throttling members, each surrounding at least a part of one of the pins.

In an embodiment, the flow conditioning insert includes a carrier plate including a recess for receiving the pin and the annular throttling member, wherein the annular throttling member defines an aperture between the pin and a portion of the carrier plate.

In an embodiment, the flow conditioning insert comprises a frame element for receiving the pin and the annular throttling member, wherein the annular throttling member defines an aperture between the pin and a portion of the frame element, the flow conditioning insert comprising a bearing plate comprising a recess for receiving the frame element.

In an embodiment, the flow conditioning insert comprises a recess that contributes to the orifice for communicating the fluid flow.

Drawings

The invention will be explained in more detail by way of example with reference to the accompanying drawings, in which:

FIG. 1 a: a side cross-sectional view illustrating an embodiment of a control valve;

FIGS. 1 b-c: showing an enlargement of a portion of the flow conditioning insert of figure 1 a;

FIG. 1 d: a front view of the pin of figure 1b is shown;

FIG. 2 a: a side cross-sectional view illustrating an embodiment of a flow conditioning insert;

FIG. 2 b: a perspective cut-away view of the flow conditioning insert of fig. 2a is shown;

FIG. 3 a: a side cross-sectional view of an additional embodiment of a flow conditioning insert with two pins is shown;

FIG. 3 b: showing a rear view of the flow conditioning insert of figure 3 a;

FIG. 4 a: a rear view showing a further embodiment of a flow conditioning insert with three pins;

FIG. 4 b: showing a side cross-sectional view of the flow conditioning insert of fig. 4 a;

FIG. 5 a: a rear view showing a further embodiment of a flow conditioning insert with four pins;

FIG. 5 b: showing a side cross-sectional view of the flow conditioning insert of fig. 5 a;

FIG. 6: showing a measurement of the flow rate regulated by the control valve according to the invention;

FIG. 7 a: a cross-sectional view illustrating additional embodiments of a control valve;

FIG. 7 b: an exploded perspective view of the control valve of figure 7a is shown.

Detailed Description

Fig. 1a shows a side cross-sectional view of an embodiment of a control valve 100, the control valve 100 comprising a valve housing 11, the valve housing 11 defining a flow path 12. The control valve 100 includes a valve regulating body 13, the valve regulating body 13 being arranged in the flow path 12 and being adjustable between a closed position and an open position for fluid flow. The valve regulating body 13 is rotatable about a rotation axis 131 between a closed position and an open position. In the embodiment, the valve-adjusting body 13 is a ball with a through hole, and the control valve 100 is a ball valve. Upstream of the valve adjusting body 13, a flow adjusting insert 14 is arranged, the flow adjusting insert 14 comprising a carrier plate 144, the carrier plate 144 extending over the cross section of the valve housing 11. The flow regulating insert 14 comprises two conical pins 141 and two annular throttling members 142, the annular throttling members 142 each surrounding one of the pins 141. The annular restriction member 142 is an elastically deformable O-ring. The pin 141 and the annular throttling member 142 are received in the recess 1441 of the carrier plate 144. The annular throttling members 142 each define an aperture 143 between the pin 141 and a portion 1443 of the carrier plate 144 adjacent to the annular throttling member 142. The carrier plate 144 comprises laterally arranged recesses 1442, the recesses 1442 forming seats for the annular throttle member 142.

Fig. 1b and 1C show an enlargement of the part of the flow-regulating insert 14 surrounded by circle C in fig. 1a for different pressures P1 and P2 of the fluid flow. Fig. 1b shows the configuration of the pin 141 and the annular throttle member 142 received in the recess 1441 of the carrier plate 144 under the pressure P1 of the fluid flow. The pin 141 includes a bridge portion 1411 at one end that forms a retaining surface so that the annular throttling member 142 is retained within the carrier plate 144 even if the fluid flow changes direction of the flow path. The bridge 1411 is connected at one end to a mating ring 1412. The mating ring 1412 is received in the recess 1441 in a form-and press-fit manner. Fluid may flow through the fluid conditioning insert through the spaces between the bridges 1411. A portion of the aperture 143 is defined between the annular throttling member 142 and the pin 141, and another portion of the aperture 143 is defined between the annular throttling member 142 and a portion 1443 of the carrier plate 144. FIG. 1c shows the configuration at a pressure P2 greater than P1. The annular restriction member 142 is deformed due to the increased pressure drop across the fluid adjustment insert, and the annular restriction member 142 is pressed against the aperture 143 and against a portion 1443 of the carrier plate 144, which portion 1443 forms a bearing surface for the annular restriction member 142. As the throttling member 142 deforms, the size of the aperture 143 through which fluid can flow decreases, resulting in an adjustment of the flow rate. Part of the annular throttle member 142 is pressed into a laterally arranged recess 1442, the recess 1442 forming a seat for the annular throttle member 142.

Fig. 1d shows a front view of the pin 141 and the annular throttle 142 seen in the direction of arrow B in fig. 1B. The pin 141 includes four bridge portions 1411 that are connected to a mating ring 1412. The annular throttling member 142 can be seen through the spaces between the bridges 1412 through which fluid flow can pass.

Fig. 2a shows a side sectional view of an embodiment of the flow control insert 24, the flow control insert 24 having a carrier plate 244, the carrier plate 244 being fixedly held between the first valve housing part 211 and the second valve housing part 212, the second valve housing part 212 being screwed onto the first valve housing part 211. The first valve housing body part 211 includes a circumferential recess 2111 that receives the carrier plate 244. The second valve housing part 212 comprises a bearing surface 2121, against which bearing surface 2121 the carrier plate 244 abuts, so that the carrier plate 244 is clamped in a form-fitting manner and in a press-fit manner between the first and second valve housing parts 211, 212. The carrier plate 244 can include a protrusion that can deform when the carrier plate 244 is fitted into the control valve such that the carrier plate 244 can be clamped in a press-fit manner without straining the pin 241 disposed in the recess 2441 of the carrier plate 244. By clamping the carrier plate 244 in the manner shown, leakage and/or vibration can be avoided. In particular, fluid flow is limited to flowing through the orifice 243. In fig. 2a, the pin 241 is shown received in the recess 2441 of the carrier plate 244. The pins 241 are arranged in a spatially fixed manner. An annular throttling member 242 surrounds the protruding portion of the pin 241 and defines an aperture 243 between the pin 241 and a portion of the carrier plate 244.

Fig. 2b shows a perspective cross-sectional view of the flow adjustment insert 24 of fig. 2a, the flow adjustment insert 24 being fixedly held between the first valve housing body part 211 and the second valve housing body part 212, the second valve housing body part 212 being screwed onto the first valve housing body part 211. In fig. 2b, two pins 241 can be seen, which pins 241 are arranged in parallel with respect to the flow path 22. The pin 241 includes a recess 2413 that contributes to the aperture 243. At least a portion of the annular throttling member 242 may be compressed into the recess 2413 of the respective pin 241 under a pressure differential across the flow conditioning insert 24, which modifies the orifice for communicating the fluid flow.

Fig. 3a shows a side sectional view of a further embodiment of a flow regulating insert 34 with two pins 341 and two annular throttling members 342. In fig. 3a, only one of the pin and the throttle member is provided with reference numerals for better visibility. However, both the pin and the throttle member, respectively, are designed in the same way. The pins 341 are arranged in a spatially fixed manner. An annular throttling member 342 surrounds the pin 341. The flow regulating insert 34 further comprises two frame elements 346, which frame elements 346 are arranged in the carrier plate 344 of the flow regulating insert 34 and each receive a pin 341 and an annular throttling member 342. The annular throttling member 342 defines an aperture 343 between the pin 341 and a portion of the frame element 346. The frame element 346 comprises laterally arranged recesses 3461, the recesses 3461 forming seats for the annular throttle member 342. Carrier plate 344 includes a recess 3441 for receiving frame member 346. The carrier plate 344 receives the frame element 346 in a form-fitting manner and in a press-fitting manner such that the fluid flow is limited to the flow through the apertures 343. The carrier plate 344 is clamped between the first valve housing part 311 and the second valve housing part 312. The first valve housing body part 311 is screwed to the second valve housing body part 312. The second valve housing part 312 includes a circumferential recess 3111 that receives the carrier plate 344. The first valve housing part 311 comprises a bearing surface 3121, against which bearing surface 3121 the carrier plate 344 abuts, so that the carrier plate 344 is clamped between the first and second valve housing parts 311, 312 in a form-fitting manner and in a press-fit manner. The flow path is symbolized by arrows 32.

Fig. 3b shows a rear view of the flow conditioning insert 34 of fig. 3 a. Two pins 341 and a frame element 346 arranged in the flow-regulating insert 34 can be distinguished by an opening of the second valve housing part 312. Line a-a shows a cut line of the cross-sectional view as shown in fig. 3 a.

Fig. 4a shows a rear view of a further embodiment of a flow-regulating insert 44 with three frame elements 446 and pins 441. The pin 441 and the frame element 446 can be distinguished by an opening of the second valve housing part 412.

FIG. 4b illustrates a side cross-sectional view of the flow conditioning insert 44 of FIG. 4a, wherein the cross-section is taken along line A-A of FIG. 4 a. The carrier plate 444 of the flow regulating insert 44 is clamped between the first housing part 411 and the second housing part 412 in a similar manner as shown for the embodiment of fig. 3 a. Due to the specific arrangement of the three pins 441 only one pin 441 and the annular throttle member 442 surrounding the pin 441 and one frame element 446 can be seen in the sectional view. The pin 441, the annular throttle member 442 and the frame element 446 have a similar design as shown in the embodiment of fig. 3 a.

Fig. 5a shows a rear view of a further embodiment of a flow-regulating insert 54 with four pins 541 and four frame elements 546. The pin 541 and the frame member 546 can be distinguished through the opening of the second valve housing part 512. In fig. 5b a side cross-sectional view of the flow regulating insert 54 is shown, wherein the cross-section is taken along the line a-a. The carrier plate 544 of the flow adjustment insert 54 is clamped between the first housing part 511 and the second housing part 512 in a similar manner to that shown for the embodiment of fig. 3a or 4 b. The pin 541, the annular throttle 542 and the frame element 546 have a similar design as shown in the embodiment of fig. 3 a.

The embodiment shown in fig. 3a-5b can also be designed without a frame element in a similar way to the embodiment shown in fig. 1-2 b.

FIG. 6 shows a measurement of flow rate regulated by a control valve according to the present invention, the flow rate is shown in comparison to a pressure differential across a flow regulating insert, the measurement is made for an arrangement where the control valve is a ball valve and where the flow regulating insert comprises three pins and an annular throttling member arranged in parallel with respect to the flow path_vThe value is lower.For a fully open valve (90 °), the minimum △ p value is about 0.5 bar, with the minimum △ p value increasing as the valve position angle decreases.

Fig. 7a shows a cross-sectional view of a further embodiment of a control valve 600 designed as a ball valve, the control valve 600 comprising a valve adjusting body 63 shaped as a ball with a through hole 631. Valve adjustment body 63 is rotatable about axis 631. The control valve 600 includes a first valve housing body part 611 housing the valve adjustment body 63 and a second valve housing body part 612 housing the flow adjustment insert 64. The flow regulating insert 64 includes a carrier plate in the shape of a barrel 644 that extends across the cross-section of the second valve housing body 612. The barrel 644 includes a recess 6441, the recess 6441 receiving the pin 641 and the annular throttling member 642. An annular throttling member 642 surrounds the pin 641. The barrel 644 includes a lateral latch portion 6444 configured to latch the pin 641. As indicated by flow path 62, a flow conditioning insert 64 is disposed downstream of valve conditioning body 63. Also, as can be seen more clearly in fig. 7b, the flow conditioning insert 64 is held in place by a mating clip 65.

FIG. 7b illustrates an exploded perspective view of the control valve 600 of FIG. 7a showing the flow regulating insert 64 and the barrel 644. The mating clip 65 includes two ends with holes 651 that can be used to snap and remove or insert the clip 65. Thus, the illustrated embodiment is particularly suited to interchanging different flow conditioning inserts 63 with different flow conditioning characteristics depending on the particular application of the control valve 600.