CN2869383Y - Automobile air-conditioning variable displacement compressor control valve - Google Patents
Automobile air-conditioning variable displacement compressor control valve Download PDFInfo
- Publication number
- CN2869383Y CN2869383Y CN 200620069366 CN200620069366U CN2869383Y CN 2869383 Y CN2869383 Y CN 2869383Y CN 200620069366 CN200620069366 CN 200620069366 CN 200620069366 U CN200620069366 U CN 200620069366U CN 2869383 Y CN2869383 Y CN 2869383Y
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- control valve
- shell body
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model relates to a control valve used for variable displacement compressor of automotive air conditioner. The structure of which is a sealing ring fixed between a center and a valve body, a sheath is on the center, one end of a spring is connected with the sheath and the other end is connected with a valve plug, a channel is designed between the valve plug and the valve body, and aluminum alloy valve body is connected with a shell body with an interference fitting, one end of a corrugated tube assembly is connected with a valve plug clamp and a thread on other end of the corrugated tube assembly is screwed in the shell body and fastened, a filter screen is fixed within the shell body. The material of the valve body and the shell body is aluminum alloy. This utility model has advantages that both the valve body and the shell body are made from aluminum alloy, the material can decrease manufacture cost; the connection of the shell body and the valve body is interference fitting, when adjusting assembly, the valve body is pressed in gradually until meeting the parameter, the interference fitting can eliminate damage possibility of sealing surface, the adjustment is very simple, the corrugated tube is well stressed, the influence of subsequent operation for performance parameter can be eliminated.
Description
Technical field
The utility model relates to a kind of control valve that is used on the car air conditioner variable compressor.Belong to the automobile air conditioner compressor technical field.
Background technique
Prior art, as the SD7V control valve, no interference fit is connected between the housing in its structure and valve body; The closing in that housing and valve body are asked clamps and is difficult to guarantee the closing in clamping, and this non-removable connection, makes the underproof control valve of parameter testing can't change its component and repeats debugging; When stubborn bellows component screw thread was adjusted the control valve parameter, bellows was subjected to twisting force to influence performance, and relatively rotating also has harmful effect to the bulb sealing surface; The more important thing is and in screw thread stop operation subsequently, may change the good parameter of debugging.
Summary of the invention
The purpose of this utility model is to propose a kind of Control Valve in Variable Displacement Compressor, is used for automobile air conditioner compressor.It has low cost of manufacture, can eliminate the damage of valve core sealed cover in the assembly process, and debugging is simple, the stressed characteristics such as good of bellows.The utility model is based on following working principle: the displacement variation of rocking plate type variable compressor is to force piston stroke to change by the inclination angle that changes the rotation rocker to realize.The gas pressure Pc in the rocker case is depended at the inclination angle of rocker again.For this reason, compressor high pressure gas pressure P d is flowed into the rocker case by throttle orifice on the compressor housing, regulate the rocker case by control valve again and control gas pressure Pc in the rocker case to the gas flow of air aspiration cavity.When control valve was closed, the gas pressure in the rocker case was the highest, the inclination angle minimum of rotation rocker, and the piston stroke minimum, compressor is worked under the minimum injection rate state.When temperature in the railway carriage raise, the refrigeration agent evaporating pressure was that pressure of inspiration(Pi) Ps raises.When gas pressure Ps was increased to the control valve cracking pressure, control valve was opened.Rocker loading pressure Pc reduces, and compressor rocker resistance reduces, and the inclination angle reduces, and the compressor piston stroke increases, and discharge capacity increases, and makes temperature reduction in the railway carriage.
Technical solution of the present utility model: its structure is to establish seal ring between thimble and valve body, cover is arranged on the thimble, one termination cover of spring, another termination spool of spring, a passage is arranged between spool and valve body, and valve body adopts interference fit to be connected with housing, and the end welding end cap of bellows component clamps with spool and is connected, the screw thread of the bellows component the other end is screwed into housing and fastening, establishes filter screen in the housing.
Advantage of the present utility model: housing adopts the interference fit that can carry out the limited number of time dismounting to be connected with valve body, is pressed into gradually during assembling and setting, and is qualified until parameter; Valve body and housing are aluminum alloy material, reduce manufacture cost; Eliminated the possibility of seal spool surface damage in the assembly process, debugging is simple, and bellows is stressed good, has eliminated the influence of subsequent handling operation to performance parameter.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model.
Among the figure 1 is thimble, the 2nd, back-up ring, the 3rd, and seal ring, the 4th, cover, the 5th, spring, the 6th, spool, the 7th, interference fit, the 8th, valve body, the 9th, housing, the 10th, bellows component, the 11st, filter screen, the 12nd, screw thread are screwed into housing and fastening.
Embodiment,
The contrast accompanying drawing, its structure is that thimble 1 and 8 of valve bodies are established seal ring 3, cover 4 is arranged on the thimble 1, the one termination cover 4 of spring 5, another termination spool 6 of spring 5,8 of spool 6 and valve bodies have a passage, and valve body 8 is connected by interference fit 7 with housing 9, the threaded one end of bellows component 10 is screwed into housing and fastening, establishes filter screen 11 in the housing 9.
Described seal ring 3 is used for the sealing of thimble 1 and valve body 8, and the assembling back is spacing by the back-up ring 2 that is pressed into valve body 8.Thimble 1 is used to experience exhaust pressure, is press-fitted to overlap 4 thereon and can prevent that thimble 1 from deviating from, and promotes spring 5 when making thimble 1 right lateral again power is mildly acted on the spool 6.After being used to prevent that filter screen 11 that impurity in the rocker case enters control valve is pressed into housing 9, refill (screw thread is screwed into and is fastening) and experience the sensing element bellows component 10 (belt spool 6) of rocker case internal pressure, at last housing 9 is pressed into valve body 8, thereby guarantees the tram that each is formed.Housing 9 adopts the interference fit that can carry out the limited number of time dismounting to be connected with valve body 8.Be divided into three chambeies after control valve is contained on the compressor, bellows component communicates with compressor rocker case chamber, and thimble communicates with compressor discharge chamber, and the valve body radial hole communicates with the compressor air suction chamber, and above-mentioned each cavity pressure directly or indirectly acts on the spool.The adjusting of control valve is at given exhaust pressure Pd, and under the condition of the gas pressure Pc in the case, the bellows component that gradually reduces is opened spool under setting pressure of inspiration(Pi) Ps.Compressor Discharge Pressure is exactly the pressure of air-conditioning refrigerant, and it depends on ambient temperature.When ambient temperature was low, our refrigerating capacity of demand was also little, and it is high that this just requires control valve to set cracking pressure.This control valve is designed to have cracking pressure and reduces the characteristic line that raises with exhaust pressure.The slope of characteristic line is controlled by the diameter and the spring force size of thimble.
Claims (2)
1, car air conditioner Control Valve in Variable Displacement Compressor, it is characterized in that establishing seal ring (3) between thimble (1) and valve body (8), cover (4) is arranged on the thimble (1), one termination cover (4) of spring (5), another termination spool (6) of spring (5) has a passage between spool (6) and valve body (8), and valve body (8) is connected by interference fit (7) with housing (9), the threaded one end of bellows component (10) is screwed into housing and fastening, establishes filter screen (11) in the housing (9).
2, car air conditioner Control Valve in Variable Displacement Compressor according to claim 1 is characterized in that the material selection aluminum alloy of control valve valve body (8) and housing (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069366 CN2869383Y (en) | 2006-02-17 | 2006-02-17 | Automobile air-conditioning variable displacement compressor control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620069366 CN2869383Y (en) | 2006-02-17 | 2006-02-17 | Automobile air-conditioning variable displacement compressor control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869383Y true CN2869383Y (en) | 2007-02-14 |
Family
ID=37724318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620069366 Expired - Lifetime CN2869383Y (en) | 2006-02-17 | 2006-02-17 | Automobile air-conditioning variable displacement compressor control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869383Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165824A (en) * | 2017-04-26 | 2017-09-15 | 合肥江航飞机装备有限公司 | A kind of car air-conditioner vortex positive displacement compressor core controls ripple component |
| CN110005869A (en) * | 2019-04-17 | 2019-07-12 | 基永汽配（上海）有限公司 | A kind of bellows and the solenoid valve with the bellows |
| CN113646530A (en) * | 2019-04-03 | 2021-11-12 | 伊格尔工业股份有限公司 | Capacity control valve |
| CN113654706A (en) * | 2021-08-05 | 2021-11-16 | 沈阳仪表科学研究院有限公司 | Combined pressure sensitive assembly and manufacturing method thereof |
| US11754194B2 (en) | 2019-04-03 | 2023-09-12 | Eagle Industry Co., Ltd. | Capacity control valve |
| US11988296B2 (en) | 2019-04-24 | 2024-05-21 | Eagle Industry Co., Ltd. | Capacity control valve |
-
2006
- 2006-02-17 CN CN 200620069366 patent/CN2869383Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165824A (en) * | 2017-04-26 | 2017-09-15 | 合肥江航飞机装备有限公司 | A kind of car air-conditioner vortex positive displacement compressor core controls ripple component |
| CN113646530A (en) * | 2019-04-03 | 2021-11-12 | 伊格尔工业股份有限公司 | Capacity control valve |
| US11754194B2 (en) | 2019-04-03 | 2023-09-12 | Eagle Industry Co., Ltd. | Capacity control valve |
| US11821540B2 (en) | 2019-04-03 | 2023-11-21 | Eagle Industry Co., Ltd. | Capacity control valve |
| CN110005869A (en) * | 2019-04-17 | 2019-07-12 | 基永汽配（上海）有限公司 | A kind of bellows and the solenoid valve with the bellows |
| US11988296B2 (en) | 2019-04-24 | 2024-05-21 | Eagle Industry Co., Ltd. | Capacity control valve |
| CN113654706A (en) * | 2021-08-05 | 2021-11-16 | 沈阳仪表科学研究院有限公司 | Combined pressure sensitive assembly and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070214 |
|
| EXPY | Termination of patent right or utility model |