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capacity control valve

一种容量控制、控制室的技术，应用在阀装置、阀细节、液体变容式机械等方向

Active Publication Date: 2020-11-13
EAGLE INDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, even if the refrigerant is supplied from the second valve chamber 182 to the third valve chamber 184 communicating with the control chamber in order to control the pressure of the control chamber in the control region (Ls

Method used

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Experimental program
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Effect test

Embodiment 1

[0049] refer to Figure 1 to Figure 3 , the capacity control valve according to Embodiment 1 of the present invention will be described. exist figure 1 Among them, 1 is the capacity control valve. The capacity control valve 1 is mainly composed of a valve main body 2 , a valve body 21 , a pressure sensitive body 22 and a solenoid unit 30 . Hereinafter, the respective configurations constituting the capacity control valve 1 will be described.

[0050] The valve main body 2 is composed of a first valve main body 2A having a functioning through-hole therein, and a second valve main body 2B integrally fitted to one end portion of the first valve main body 2A. Furthermore, the first valve body 2A is made of metal such as brass, iron, aluminum, or stainless steel, or a synthetic resin material. On the other hand, since the second valve main body 2B functions as a magnetic circuit of the solenoid unit 30 , it is made of a magnetic material such as iron with low magnetic resistan...

Embodiment 2

[0079] refer to Figure 4 to Figure 6A capacity control valve according to Embodiment 2 of the present invention will be described. The capacity control valve 50 according to the second embodiment is mainly different from the embodiment in that the first valve portion surface 21H formed at the boundary portion between the valve body first end portion 21E and the first valve portion 21G of the valve body 21 is formed of a tapered surface. Example 1 is different, but other basic configurations are the same as in Example 1, and the same symbols are assigned to the same components, and repeated descriptions are omitted.

[0080] Figure 4 It is a front sectional view showing the capacity control valve according to the second embodiment of the present invention. Figure 5 express Figure 4 The enlarged view of part B and the action state of the valve body 21.

[0081] The valve body 21 is a hollow cylindrical member, has an intermediate communication passage 26 inside the valve...

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Abstract

The present invention provides a capacity control valve which improves the discharge function of liquid refrigerant in a control chamber when a capacity variable compressor is activated, and which can realize both shortening of the start time of the capacity variable compressor and capacity control during control. Improved responsiveness. The displacement control valve includes a valve main body (2) and a valve body (21), and the valve main body (2) has a first valve chamber (7) through which a fluid of a control pressure flows and has a first valve seat surface (31A). and the internal space (4) through which the fluid of suction pressure circulates, the valve body (21) has an intermediate communication passage (26) communicating with the first valve chamber (7) and the internal space (4) and the first valve seat surface (31A) The first valve portion (21C) of the intermediate communication path (26) is opened and closed by contacting and separating, and the opening area of ​​the first valve portion (21C) is smaller than the opening area of ​​the intermediate communication path (26).

Description

technical field [0001] The present invention relates to a capacity control valve for variably controlling the capacity or pressure of a working fluid, and more particularly to a capacity control valve for controlling the discharge rate of a variable capacity compressor used in an air-conditioning system of an automobile or the like according to a pressure load Capacity control valve. Background technique [0002] A swash plate type variable displacement compressor used in an air-conditioning system such as an automobile includes: a rotating shaft driven to rotate by the rotational force of the engine; a swash plate connected to the rotating shaft so that the inclination angle can be changed; For compression pistons, etc., the discharge amount of refrigerant is controlled by changing the inclination angle of the swash plate and changing the stroke of the piston. [0003] Using the suction pressure of the suction chamber that sucks in the refrigerant, the discharge pressure o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B27/18
CPCF04B27/1804F04B2027/1813F04B2027/1827F04B2027/1831F04B2027/1859F04B2027/1854F04B2027/185F16K31/06
Inventor 东堂园英树叶山真弘
Owner EAGLE INDS
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