Distribution valve and refrigeration system
阅读说明:本技术 分配阀和制冷系统 (Distribution valve and refrigeration system ) 是由 王海翔 T.克尔明 于 2019-03-18 设计创作,主要内容包括:提供了一种分配阀和制冷系统。分配阀包括:壳体、所述壳体中的阀芯,所述阀芯能够相对于所述壳体沿轴向轴线Y旋转地安装于所述阀腔中,所述阀芯包括侧壁,所述侧壁包括第一类球形区段和第二类球形区段,所述阀芯第一口设置于所述第一类球形区段,所述阀芯第二口设置于所述第二类球形区段;以及中间构件,其安装于所述壳体与所述阀芯之间,所述中间构件相对于所述壳体固定且与所述阀芯的侧壁密封地滑动接触;其中,阀芯第一口和中间第一口重叠时限定第一阀口,而阀芯第二口和中间第二口重叠时限定第二阀口,其中,第一阀口和第二阀口的开度随阀芯相对于阀体的旋转而改变。(A distributor valve and a refrigeration system are provided. The distribution valve includes: a housing, a valve spool in the housing, the valve spool rotatably mounted in the valve cavity along an axial axis Y relative to the housing, the valve spool including a sidewall, the sidewall including a first ball-like section and a second ball-like section, the valve spool first port disposed in the first ball-like section, the valve spool second port disposed in the second ball-like section; and an intermediate member mounted between the housing and the valve element, the intermediate member being fixed relative to the housing and in sealing sliding contact with a side wall of the valve element; wherein the first port of the valve core and the intermediate first port define a first valve port when overlapping, and the second port of the valve core and the intermediate second port define a second valve port when overlapping, wherein the opening degrees of the first valve port and the second valve port change with the rotation of the valve core relative to the valve body.)
1. A dispensing valve, comprising:
the valve comprises a shell (1) and a valve body, wherein the shell (1) comprises a valve cavity (10), a shell fluid port (13), a shell first port (12) and a shell second port (11), and the shell fluid port (13), the shell first port (12) and the shell second port (11) are respectively communicated with the valve cavity (10);
a spool (2) in the housing (1), the spool (2) being rotatably mounted in the valve cavity along an axial axis (Y) relative to the housing (1), the spool (2) including a sidewall (20), a spool cavity (29), a spool fluid port (261), a spool first port (23), and a spool second port (24), the spool fluid port (261), the spool first port (23), and the spool second port (24) communicating with the spool cavity (29), respectively, the sidewall (20) including a first spheroidal section (21) and a second spheroidal section (22), the spool first port (23) being disposed in the first spheroidal section (21), and the spool second port (24) being disposed in the second spheroidal section (22); and
an intermediate member mounted between the housing (1) and the valve cartridge (2), the intermediate member being fixed with respect to the housing (1) and being in sliding contact sealingly with a side wall (20) of the valve cartridge (2), the intermediate member comprising an intermediate first port (314) and an intermediate second port (323), the intermediate first port (314) communicating with the housing first port (12), the intermediate second port (323) communicating with the housing second port (11);
the spool first port (23) and the intermediate first port (314) define a first valve port when overlapping, and the spool second port (24) and the intermediate second port (323) define a second valve port when overlapping, wherein the opening degrees of the first and second valve ports change with rotation of the spool (2) relative to the valve body (1).
2. Dispensing valve according to claim 1, characterized in that it further comprises a sealing element mounted elastically pre-compressed between the intermediate member and the housing, in particular the outer periphery of the intermediate first (314) and second (323) ports being provided with a flange, the sealing element comprising a sealing ring (312,321) mounted outside the flange.
3. Dispensing valve according to claim 1, characterized in that the intermediate member comprises a first intermediate member half (31) and a second intermediate member half (32) wrapping the cartridge from both sides of the side wall (20) of the cartridge (2), the first intermediate member half (31) and/or the second intermediate member half (32) having stops to define the position of the first intermediate member half (31) and/or the second intermediate member half (32) in the housing (1), in particular the stops of the first intermediate member half (31) and/or the second intermediate member half (32) being two-sided stops (326, 327).
4. The dispensing valve of claim 1, wherein the spool first port (23) and/or the spool second port (24) comprises a single port or a plurality of sub-ports (231,232,241,242), optionally at least one of the single port or the plurality of sub-ports (231,232,241,242) comprises: a first section (2311) penetrating the sidewall (20) and a second section (2312) extending circumferentially from the first section (2311) that does not penetrate the sidewall, optionally the first section (2311) is circular and the second section (2312) is rectangular.
5. Dispensing valve according to claim 4, characterized in that the depth of recess of said second section (2312) into said side wall (20) decreases progressively away from said first section (2311).
6. The distribution valve according to claim 1, wherein the spool first port (23) and the spool second port (24) are located at positions where the first spherical-like section (21) and the second spherical-like section (22) have the largest diameters in a cross section perpendicular to the axial direction, respectively, or the spool first port (23) and the spool second port (24) are located at positions of the largest wall thickness of the first spherical-like section (21) and the second spherical-like section (22), respectively.
7. Dispensing valve according to claim 6, characterized in that the height to diameter ratio of the first spherical-like section (21) and/or the second spherical-like section (22) is less than 0.5, or less than 0.4, or less than 0.3.
8. The dispensing valve of claim 1 wherein said sidewall (20) forms said cylindrical cartridge cavity (29) on an inner side thereof about said axial axis, said cartridge fluid port (261) being located at an axial first end of said cartridge (2).
9. The distributor valve according to claim 8, wherein the spool (2) comprises a second end (262) axially opposite the axial first end, the second end (262) of the spool being provided with a structure for receiving torque from a drive, the second end (262) of the spool opening or closing the spool chamber (29).
10. Refrigeration system, characterized in that it comprises a compressor communicating with the housing fluid port (13), a first heat exchanger communicating with the housing first port (12), a second heat exchanger communicating with the housing second port (11), and a distribution valve according to any one of claims 1-9.
Technical Field
The present invention relates to the field of valves, and more particularly to a distributor valve and a refrigeration system having such a distributor valve.
Background
Expansion valves are often provided in fluid flow paths, particularly in refrigerant system flow paths, to control fluid flow. Common expansion valves are primarily in the form of needle valves. In a fluid flow path including a branch, it is a common design to provide two or more flow valves to control the flow rate of each flow path separately.
Disclosure of Invention
It is an object of the present invention to solve or at least alleviate problems in the prior art.
According to some aspects, there is provided a dispensing valve comprising:
the shell comprises a valve cavity, a shell fluid port, a shell first port and a shell second port, wherein the shell fluid port, the shell first port and the shell second port are respectively communicated with the valve cavity;
the valve core in the shell can be rotatably arranged in the valve cavity along an axial axis Y relative to the shell, the valve core comprises a side wall, a core cavity, a valve core fluid port, a valve core first port and a valve core second port, the valve core fluid port, the valve core first port and the valve core second port are respectively communicated with the core cavity, the side wall comprises a first sphere-like section and a second sphere-like section, the valve core first port is arranged in the first sphere-like section, and the valve core second port is arranged in the second sphere-like section; and
an intermediate member mounted between the housing and the valve cartridge, the intermediate member being fixed relative to the housing and in sealing sliding contact with a side wall of the valve cartridge, the intermediate member including an intermediate first port in communication with the housing first port and an intermediate second port in communication with the housing second port;
the first and intermediate first ports, when overlapping, define a first valve port, and the second and intermediate second ports, when overlapping, define a second valve port, wherein the first and second valve ports vary in opening as the valve spool rotates relative to the valve body.
According to further aspects, a refrigeration system is provided comprising a distribution valve according to various embodiments of the present invention.
Drawings
The disclosure of the present invention will become more readily understood with reference to the accompanying drawings. As is readily understood by those skilled in the art: these drawings are for illustrative purposes only and are not intended to constitute a limitation on the scope of the present invention. Moreover, in the drawings, like numerals are used to indicate like parts, and in which:
FIG. 1 shows an exploded view of a dispensing valve according to an embodiment of the invention;
FIG. 2 shows a longitudinal cross-sectional view of a dispensing valve according to an embodiment of the invention;
FIG. 3 illustrates a perspective view of a valve cartridge of a distribution valve according to an embodiment of the present invention;
FIG. 4 illustrates a longitudinal cross-sectional view of a spool of a dispensing valve according to an embodiment of the present invention; and
figure 5 shows a side view of a dispensing valve according to an embodiment of the invention.
Detailed Description
Referring first to fig. 1 and 2, there are shown an exploded view and a longitudinal sectional view, respectively, of a dispensing valve according to an embodiment of the present invention. A dispensing valve according to an embodiment of the invention comprises: the housing 1, the housing 1 includes a valve chamber 10, a housing fluid port 13, a housing first port 12, and a housing second port 11. The housing fluid port 13, the housing first port 12, and the housing second port 11 communicate with the valve chamber 10, respectively. As shown, the first port 12 of the housing may be located at an axial first position x1And the second port 11 of the housing can be located at the second axial position x2To (3). The
The housing 1 may have a top opening to allow the intermediate member and the
In some embodiments, the dispensing valve further comprises a sealing member mounted elastically pre-compressed between the intermediate member and the housing, in particular, the outer periphery of the intermediate first port 314 and the intermediate second port 323 is provided with a flange, said sealing member comprising a sealing ring 312,321 mounted outside said flange. In the illustrated embodiment, seals are provided between the intermediate first port 314 and the housing first port 12 and between the intermediate second port 323 and the housing second port 11. In some embodiments, the intermediate first port 314 and the intermediate second port 323 abut the housing first port 12 and the housing second port 11, respectively, and the intermediate first port 314 and the intermediate second port 323 have flanges with sealing rings 312,321 disposed outside the flanges. By this arrangement a tight seal between the intermediate member and the housing 1 is achieved. Referring to fig. 1 and 3, in some embodiments, the
In some embodiments, as shown in fig. 4, the
The specific structure of the valve cartridge in some embodiments according to the invention will be described with continued reference to fig. 3 and 4. In some embodiments, the
In some embodiments, the spool
With continued reference to FIG. 5, another embodiment in accordance with the present invention is shown. In this embodiment, the first
Additionally, a refrigeration system, such as may be used in an automotive or other environment, including a distribution valve according to various embodiments of the present invention is also provided. For example, the refrigeration system includes a compressor in communication with the housing fluid port 13, a first heat exchanger in communication with the housing first port 12, a second heat exchanger in communication with the housing second port 11, and a distribution valve.
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