阅读说明：本技术 一种能减少压力波动的调压阀 (Pressure regulating valve capable of reducing pressure fluctuation ) 是由 刘铁飞 许仲秋 刘光明 佘笑梅 于 2019-10-16 设计创作，主要内容包括：本发明提供了一种能减少压力波动的调压阀,包括阀套、柱塞、弹簧、堵塞,所述阀套上设有阀孔以及与阀孔相通的进油口和出油口,所述柱塞包括杆状部,以及分别连接在杆状部左右两端的圆盘部和圆筒部,所述圆筒部用于安装弹簧,所述圆盘部与圆筒部之间形成中转室,所述圆盘部的另一侧设有与杆状部同心的凸起部,所述圆盘部与堵塞或阀孔的底端形成反馈腔,所述圆盘部设有轴向的阻尼孔,所述阻尼孔用于连通中转室和反馈腔。该阻尼孔的设置能够防止柱塞急遽移动产生额外的压力波动。(The invention provides a pressure regulating valve capable of reducing pressure fluctuation, which comprises a valve sleeve, a plunger, a spring and a plug, wherein the valve sleeve is provided with a valve hole, an oil inlet and an oil outlet communicated with the valve hole, the plunger comprises a rod-shaped part, and a disc part and a cylinder part which are respectively connected to the left end and the right end of the rod-shaped part, the cylinder part is used for mounting the spring, a transfer chamber is formed between the disc part and the cylinder part, the other side of the disc part is provided with a protruding part concentric with the rod-shaped part, the disc part and the plug or the bottom end of the valve hole form a feedback chamber, the disc part is provided with an axial damping hole, and the damping hole. The provision of the damping orifice prevents the sudden movement of the plunger from generating additional pressure fluctuations.)

1. The utility model provides a can reduce pressure regulating valve of pressure fluctuation, includes valve barrel (1), plunger (2), spring (3), blocks up (4), be equipped with the valve opening on valve barrel (1) and with communicating oil inlet (5) of valve opening and oil-out (6), plunger (2) include shaft-like portion (2 a) to and connect disk portion (2 b) and drum portion (2 c) at both ends about shaft-like portion (2 a) respectively, drum portion (2 c) are used for installing spring (3), form transfer chamber (7) between disk portion (2 b) and drum portion (2 c), the opposite side of disk portion (2 b) is equipped with bellying (2 d) concentric with shaft-like portion (2 a), disk portion (2 b) and the bottom of blockking up (4) or valve opening form feedback chamber (8), its characterized in that: the disc part (2 b) is provided with an axial damping hole (9), and the damping hole (9) is used for communicating the transfer chamber (7) with the feedback cavity (8).

2. The pressure regulating valve capable of reducing pressure fluctuations of claim 1, wherein: the number of the damping holes (9) is two or four, and the damping holes (9) are symmetrically arranged on the disc part (2 b) along the same circumferential line.

3. The pressure regulating valve capable of reducing pressure fluctuations of claim 1, wherein: and the positions, corresponding to the oil inlet (5) and the oil outlet (6), on the inner wall of the valve hole are respectively provided with an annular groove (10).

Technical Field

The invention relates to an engine lubrication system, in particular to a pressure regulating valve.

Background

The existing pressure regulating valve is directly influenced by pressure when being opened and closed, and can be quickly opened and closed, so that the pressure is greatly fluctuated, the oil supply of an oil pump is influenced to be unstable, subsequent oil circuit parts of an engine are easily impacted, and poor lubrication is caused.

Disclosure of Invention

The invention aims to provide a pressure regulating valve capable of reducing pressure fluctuation.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a can pressure fluctuation's air-vent valve, includes valve barrel, plunger, spring, jam, be equipped with the valve opening on the valve barrel and with communicating oil inlet and the oil-out of valve opening, the plunger includes shaft-like portion to and connect disc portion and the drum portion at both ends about shaft-like portion respectively, drum portion is used for the installation spring, form the transfer room between disc portion and the drum portion, the opposite side of disc portion be equipped with the endocentric bellying of shaft-like portion, disc portion forms the feedback chamber with the bottom of jam or valve opening, disc portion is equipped with axial damping hole, the damping hole is used for the intercommunication transfer room and feedback chamber.

The working principle of the pressure regulating valve is as follows: when the valve is opened, the pressure oil reaches the bottom end of the valve hole through the damping hole and generates a reaction thrust to slowly open the plunger; after opening, when the plunger retreats under the action of the spring, because the pressure oil exists at the bottom end of the valve hole, the plunger can move along with the pressure oil slowly discharged from the bottom end through the damping hole, and the damping hole can prevent the plunger from suddenly moving to generate additional pressure fluctuation.

Preferably, the number of the damping holes is two or four, and the damping holes are symmetrically arranged on the disk part along the same circumference.

Furthermore, the positions, corresponding to the oil inlet and the oil outlet, on the inner wall of the valve hole are respectively provided with an annular groove. This structure can avoid the plunger to deflect to one side under the effect of oil pressure.

Drawings

FIG. 1 is a schematic diagram of a pressure regulating valve according to an embodiment of the present invention;

the reference signs are:

1-valve housing 2-plunger 2 a-rod-shaped part

2b disk portion 2c cylindrical portion 2d boss portion

3-spring 4-screw plug 5-oil inlet

6-oil outlet 7-transfer chamber 8-feedback cavity

9-damping orifice.

Detailed Description

In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, or interconnected between two elements, directly or indirectly through intervening media, and the specific meaning of the terms may be understood by those skilled in the art according to their specific situation.

As shown in fig. 1, the pressure regulating valve capable of reducing pressure fluctuation comprises a valve sleeve 1, a plunger 2, a spring 3 and a plug 4, wherein the valve sleeve 1 is provided with a valve hole, an oil inlet 5 and an oil outlet 6 communicated with the valve hole, the plunger 2 comprises a rod-shaped portion 2a, a disk portion 2b and a cylinder portion 2c which are connected to the left end and the right end of the rod-shaped portion 2a respectively, the cylinder portion 2c is used for installing the spring 3, a transfer chamber 7 is formed between the disk portion 2b and the cylinder portion 2c, a protruding portion 2d which is concentric with the rod-shaped portion 2a is arranged on the other side of the disk portion 2b, a feedback chamber 8 is formed between the disk portion 2b and the plug 4 or the bottom end of the valve hole, an axial damping hole 9 is arranged on the disk portion 2.

Preferably, the number of the damping holes 9 is two or four, and the damping holes 9 are symmetrically arranged on the disk portion 2b along the same circumferential line. The positions of the inner wall of the valve hole, which correspond to the oil inlet 5 and the oil outlet 6, are respectively provided with an annular groove 10, so that the plunger 2 can be prevented from deviating to one side under the action of oil pressure.

The working principle of the pressure regulating valve is as follows: when the plunger piston is opened, the pressure oil reaches the bottom end of the valve hole through the damping hole 9 and generates a reaction thrust to slowly open the plunger piston 2; after opening, when the plunger 2 retracts under the action of the spring 3, because the pressure oil exists at the bottom end of the valve hole, the bottom end oil is slowly discharged through the damping hole 9 to move along with the pressure oil, and the damping hole 9 is arranged to prevent the plunger 2 from suddenly moving to generate additional pressure fluctuation.

Some of the drawings and descriptions of the present invention have been simplified to facilitate the understanding of the improvements over the prior art by those skilled in the art, and some other elements have been omitted from this document for the sake of clarity, and it should be appreciated by those skilled in the art that such omitted elements may also constitute the subject matter of the present invention.