CN201237008Y - Pneumatic control valve with filter - Google Patents
Pneumatic control valve with filter Download PDFInfo
- Publication number
- CN201237008Y CN201237008Y CNU2008200378778U CN200820037877U CN201237008Y CN 201237008 Y CN201237008 Y CN 201237008Y CN U2008200378778 U CNU2008200378778 U CN U2008200378778U CN 200820037877 U CN200820037877 U CN 200820037877U CN 201237008 Y CN201237008 Y CN 201237008Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- pressure
- pneumatic control
- needle
- 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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- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
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- Lift Valve (AREA)
Abstract
The utility model relates to a pneumatic control valve provided with a filter, which has the structure that a lower valve body and the left end of an upper valve body are assembled into a pressure sensing bulk-cavity to form a pressure sensing part; a pin valve is installed at the middle part of the upper valve body and forms a pressure transfer part together with a spring; the pin valve and the left end of the upper valve body in an inner hole form a left valve port; the right end of the upper valve body and a valve seat are interference-connected to form a right valve port; and the filter is sleeved on an inlet of the valve. The pneumatic control valve has the advantages as follows: a filtering apparatus is added to the high pressure inlet of the control valve so as to obstruct impurities from influencing the control and lead a compressor to adjust the discharge capacity normally and automatically.
Description
Technical field
The utility model relates to a kind of pneumatic autocontrol valve of car air conditioner variable compressor, particularly a kind of pneumatic control valve with filter.Belong to car air conditioner variable compressor attachment technique field.
Background technique
Existing pneumatic control valve, its structure is made up of the left and right valve port of pressure-sensitive part, pressure drive part and valve.Described pressure-sensitive part is made up of bellows, following valve body, impression is from the pressure of compressor air suction part, described left valve port and pressure drive part, form by upper valve body, needle-valve, spring, the gas flow in control air aspiration cavity and rocker case chamber, the right valve port of control valve is made up of valve seat, steel ball, spring, because valve is not with filter, the impurity of exhaust outlet of compressor can enter control valve inside like this, influences the proper functioning of control valve.
Summary of the invention:
The pneumatic control valve of the band filter that the utility model proposes, its purpose are intended to prevent that the impurity of exhaust outlet of compressor from entering control valve inside, guarantee the proper functioning of control valve.
Technical solution of the present utility model: the port that communicates with exhaust pressure at pneumatic control valve is provided with filtrating equipment, and the pneumatic control valve of band filter comprises the left and right valve port part of pressure-sensitive part, pressure drive part and valve.Wherein: the left end of following valve body and upper valve body is combined into a pressure-sensitive cavity volume and forms the pressure-sensitive part; Needle-valve is installed in the middle part of upper valve body with spring decomposition pressure transmitting portions, and needle-valve and upper valve body form left valve port at the left end of endoporus.The right valve port part of the right-hand member of upper valve body and valve seat interference fit joint shape, filter then is enclosed within the entrance location (right-hand member of upper valve body) of valve.
Advantage of the present utility model: in automotive air-conditioning system because the continuous to-and-fro motion of compresser cylinder, and the high-speed motion of inner other moving elements of compressor produces wearing and tearing, have that some metal granule come off and flow with refrigeration agent, other constituent elementss also can produce some metals or non-metallic particle because of long-term work in the air-conditioning system, if these particles enter into control valve, and gather together and just may influence the normal switching of control valve valve, make compressor can't normally regulate discharge capacity automatically.This pneumatic control valve is exactly the filtrating equipment of high pressure entry increase at control valve, enters control valve to stop impurity.
Description of drawings
Accompanying drawing 1 is the pneumatic control valve structural representation of band filter.
Among the figure 1 is bellows, the 2nd, following valve body, the 3rd, upper valve body, the 4th, needle-valve, the 5th, spring, the 6th, valve seat, the 7th, steel ball, the 8th, spring, the 9th, filter, the 10th, O type circle A, the 11st, O type circle B, the 12nd, O type circle C, the 13rd, O type circle D.
Embodiment
Described pressure-sensitive partly comprises bellows 1, following valve body 2 and upper valve body 3, impression is from the pressure of compressor air suction part, wherein descend valve body 2 and upper valve body 3 interference to be connected to form a pressure-sensitive chamber, bellows 1 is placed in down in the cavity of valve body 2, following valve body cylindrical has 2 apertures, the pressure of intakeport can be delivered to down valve inner, when compressor extends because of diplomatic pressure changes when bellows, because left end withstands down the interior edge face of valve body 2, the thimble part of bellows right-hand member just can promote needle-valve 4 and move right.
Described left valve port and pressure drive part comprise upper valve body 3, needle-valve 4, spring 5, the gas flow in control air aspiration cavity and rocker case chamber, needle-valve 4 is installed in the middle part of upper valve body 3, and spring 5 is enclosed within on the needle-valve 4, its right-hand member withstands the interior edge face of upper valve body 3, the equilibrium of forces that transmits with bellows.Needle-valve is delivered to right-hand member owing to elongating or shortening of bellows made left and right displacement with power.
Described right valve port structure comprises valve seat 6, steel ball 7, spring 8 and filter 9, the right-hand member of upper valve body 3 and valve seat interference fit joint, be equipped with valve seat inside is steel ball 7, spring 8, the inner arc surface of steel ball and valve seat and through hole form the valve port of a valve, the left end of steel ball contacts with the right-hand member of needle-valve, the right-hand member of steel ball has spring to support, and pushes steel ball open, valve opening when the bellows elongation and by needle-valve displacement to the right; When bellows contract, spring force makes steel ball be moved to the left throttle down again.Valve seat is forgiven in the space of upper valve body and filter formation.
The working procedure of the pneumatic control valve of band filter
When compressor air suction mouth refrigerant gas pressure changes, bellows component can elongate or shorten because of the effect of gas pressure, and the promotion needle-valve changes the aperture of left valve port do axial motion, adjusting is by the cooling flow amount of rocker case to air aspiration cavity, needle-valve promotes the aperture that steel ball is regulated right valve port more simultaneously, the gas of exhaust outlet of compressor enters valve seat by the filter of control valve right-hand member, enter the rocker chamber of compressor again through the right valve port of steel ball and valve seat formation, thereby change compressor rocker cavity pressure, finally control the stroke of compressor piston.Because the refrigerator pressure of exhaust outlet of compressor is very high, so also have O-ring seals in the outside of control valve, plays preventing that refrigeration agent from leaking to the external world by the fit up gap between control valve and the compressor.
Claims (4)
1, the pneumatic control valve of band filter, it is characterized in that filtrating equipment being set at the port that communicates with exhaust pressure of pneumatic control valve, the pneumatic control valve of band filter comprises the left and right valve port part of pressure-sensitive part, pressure drive part and valve, and wherein: the left end of following valve body and upper valve body is combined into a pressure-sensitive cavity volume and forms the pressure-sensitive part; Needle-valve is installed in the middle part of upper valve body with spring decomposition pressure transmitting portions, and needle-valve and upper valve body form left valve port at the left end of endoporus, and the right-hand member of upper valve body and valve seat interference fit joint form right valve port part, and filter then is enclosed within the entrance location of valve.
2, the pneumatic control valve of band filter according to claim 1, it is characterized in that described pressure-sensitive partly comprises bellows, following valve body and upper valve body, wherein descend valve body and upper valve body interference to be connected to form a pressure-sensitive chamber, bellows is placed in down in the cavity of valve body, and following valve body cylindrical has individual aperture.
3, the pneumatic control valve of band filter according to claim 1, it is characterized in that described left valve port and pressure drive part comprise upper valve body, needle-valve, spring, the gas flow in control air aspiration cavity and rocker case chamber, needle-valve is installed in the middle part of upper valve body, spring housing is on needle-valve, its right-hand member withstands the interior edge face of upper valve body, the equilibrium of forces that transmits with bellows.
4, the pneumatic control valve of band filter according to claim 1, it is characterized in that described right valve port structure comprises valve seat, steel ball, spring and filter, the wherein right-hand member of upper valve body and valve seat interference fit joint, be equipped with valve seat inside is steel ball, spring, the inner arc surface of steel ball and valve seat and through hole form the right valve port of control valve, the left end of steel ball contacts with the right-hand member of needle-valve, and the right-hand member of steel ball has spring to support, and valve seat is forgiven in the space of upper valve body and filter formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378778U CN201237008Y (en) | 2008-06-24 | 2008-06-24 | Pneumatic control valve with filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200378778U CN201237008Y (en) | 2008-06-24 | 2008-06-24 | Pneumatic control valve with filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201237008Y true CN201237008Y (en) | 2009-05-13 |
Family
ID=40649739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200378778U Expired - Lifetime CN201237008Y (en) | 2008-06-24 | 2008-06-24 | Pneumatic control valve with filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201237008Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313050A (en) * | 2011-08-31 | 2012-01-11 | 昆山三智电子工业有限公司 | Valve rod of needle valve |
| CN102032142B (en) * | 2009-09-30 | 2013-04-03 | 王嘉 | Air exhausting and pressure releasing device for air pump |
| CN106870331A (en) * | 2015-12-11 | 2017-06-20 | 浙江三花汽车零部件有限公司 | A kind of processing method of the control valve and its valve body for variable compressor |
| CN107701411A (en) * | 2017-11-13 | 2018-02-16 | 苏州新智机电工业有限公司 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
| CN109027398A (en) * | 2018-09-19 | 2018-12-18 | 北京航天动力研究所 | Ultralow temperature high pressure double spool linkage valve |
| CN111306321A (en) * | 2018-12-12 | 2020-06-19 | Ckd株式会社 | Manual valve and pneumatic equipment |
-
2008
- 2008-06-24 CN CNU2008200378778U patent/CN201237008Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102032142B (en) * | 2009-09-30 | 2013-04-03 | 王嘉 | Air exhausting and pressure releasing device for air pump |
| CN102313050A (en) * | 2011-08-31 | 2012-01-11 | 昆山三智电子工业有限公司 | Valve rod of needle valve |
| CN106870331A (en) * | 2015-12-11 | 2017-06-20 | 浙江三花汽车零部件有限公司 | A kind of processing method of the control valve and its valve body for variable compressor |
| CN107701411A (en) * | 2017-11-13 | 2018-02-16 | 苏州新智机电工业有限公司 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
| CN109027398A (en) * | 2018-09-19 | 2018-12-18 | 北京航天动力研究所 | Ultralow temperature high pressure double spool linkage valve |
| CN109027398B (en) * | 2018-09-19 | 2024-05-03 | 北京航天动力研究所 | Ultralow temperature high pressure double-valve core linkage valve |
| CN111306321A (en) * | 2018-12-12 | 2020-06-19 | Ckd株式会社 | Manual valve and pneumatic equipment |
| CN111306321B (en) * | 2018-12-12 | 2022-02-25 | Ckd株式会社 | Manual valve and pneumatic equipment |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090513 |