CN203847366U - Small single-channel pneumatic control valve of automotive air-conditioning variable-displacement compressor - Google Patents
Small single-channel pneumatic control valve of automotive air-conditioning variable-displacement compressor Download PDFInfo
- Publication number
- CN203847366U CN203847366U CN201420186813.XU CN201420186813U CN203847366U CN 203847366 U CN203847366 U CN 203847366U CN 201420186813 U CN201420186813 U CN 201420186813U CN 203847366 U CN203847366 U CN 203847366U
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- Prior art keywords
- valve body
- upper valve
- pressure
- compressor
- control valve
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- Expired - Lifetime
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- 238000006073 displacement reaction Methods 0.000 title claims abstract description 14
- 238000004378 air conditioning Methods 0.000 title abstract 2
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 15
- 239000010959 steel Substances 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims abstract description 9
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000005096 rolling process Methods 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a small single-channel pneumatic control valve of an automotive air-conditioning variable-displacement compressor. The small single-channel pneumatic control valve comprises a pressure sensing part, a force transmission part, a valve part and a seal filtering part, a lower valve body and an upper valve body in the pressure sensing part are in interference fit to form a pressure sensing cavity, pressure Ps of a suction cavity of a compressor is sensed, and a rolling pin in the force transmission part is fixed by the upper valve body 6; three O-shaped sealing rings in the seal filtering part are respectively mounted on the lower valve body and the upper valve body, the internal opening of the upper valve body and a steel ball in the valve part form a valve port, one end of the upper valve body is used for sensing pressure Pc of the inner cavity of the compressor while the other end is used for sensing pressure Pd of an exhaust cavity of the compressor, and the steel ball is fixed on a seat spring. The small single-channel pneumatic control valve has the advantages that no channels or valve ports are arranged between the suction cavity and the inner cavity of the compressor, the control valve is downsized with the weight reduced, so that the compressor is downsized with the weight reduced; the valve port between the exhaust cavity and the inner cavity of the compressor is arranged in the upper valve body, the number of parts used can be reduced, the technological process can be simplified, and processing cost can be lowered.
Description
Technical field
The utility model relates to a kind of small-sized single-way pneumatic control valve, belong to Automotive Variable Displacement Compressor attachment technique field.
Background technique
Existing a kind of compressor with variable displacement control valve for Automotive Variable Displacement Compressor (patent No. CN 202327321 U), main structure comprises pressure-sensitive part, bivalve mouth, power transmitting portions and O type circle.Experience pressure of inspiration(Pi) by bellows, along with the increase of pressure of inspiration(Pi), bellows shortens, and reducing of pressure of inspiration(Pi) and bellows extend, thereby regulate the aperture of bivalve mouth, constantly regulate cavity pressure Pc, regulate the discharge capacity of compressor, make vehicle interior temperature reach setting requirement.
At society, automobile fuel consumption becomes the focus of people's growing interest, and therefore the low strong competitive ability that also becomes automobile of oil consumption needs to alleviate complete machine weight and reduce the oil consumption of automotive dead weight.Because current this valve exists bivalve mouth, make the overall length of control valve longer, the overall volume of compressor is larger, and weight is heavier.This outer seat upper valve body is to be press-fitted by interference fit, and assembly process is loaded down with trivial details, and easily produces aluminium bits and enter into control valve inside, affects the control accuracy of control valve.
Summary of the invention
The utility model proposes a kind of small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor, its object is intended to overcome the existing above-mentioned defect of prior art, by cancelling passage or the valve port between cavity pressure and pressure of inspiration(Pi), this valve port is transferred on the inner orifice plate arranging of compressor, thereby reduce the total length of control valve, make the overall length of control valve be reduced to 40mm by original 64mm, the volume-diminished of control valve approximately 40%, also reduce the volume of compressor, alleviated the weight of compressor.
Technical solution of the present utility model: its structure comprises pressure-sensitive part, power transmitting portions, valve part and sealing filtration fraction, lower valve body and upper valve body in wherein pressure-sensitive part form pressure-sensitive chamber by interference fit, the needle roller in upper valve body retention force transmitting portions; 3 O RunddichtringOs in sealing filtration fraction are arranged on respectively on lower valve body and upper valve body, the steel ball composition valve port in upper valve body internal openings and valve part, seating spring stationary balls.
Advantage of the present utility model: cancelled passage or valve port between cavity pressure and pressure of inspiration(Pi), reduced the volume of control valve, alleviated the weight of control valve, thereby the volume of compressor is reduced, the weight saving of compressor; Valve port between exhaust cavity and compressor inner chamber is built up on upper valve body.Passage or valve port between cavity pressure and pressure of inspiration(Pi) are cancelled.Valve port between exhaust cavity and compressor inner chamber is built up on upper valve body.Valve port on valve seat is directly designed on upper valve body, cancelled valve seat part, simplified assemble flow, reduced processing cost, also avoided affecting due to the foreign matter that interference is press-fitted generation the control accuracy of control valve.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor.
In figure 1 is that lower valve body, 2 is first O-ring seals, the 3rd, needle roller seat, the 4th, and bellows, 5 is second O-ring seals, the 6th, upper valve body, the 7th, needle roller, 8 is the 3rd O-ring seals, the 9th, steel ball, the 10th, seating spring, the 11st, filter.
Embodiment
Contrast accompanying drawing 1, the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor, its structure comprises pressure-sensitive part, power transmitting portions, valve part and sealing filtration fraction, lower valve body 1 and upper valve body 6 in wherein pressure-sensitive part form pressure-sensitive chamber by interference fit, the needle roller 7 in upper valve body 6 retention force transmitting portions; 3 O RunddichtringOs in sealing filtration fraction are arranged on respectively on lower valve body 1 and upper valve body 6, and the steel ball 9 in upper valve body 6 internal openings and valve part forms valve port, seating spring 10 stationary balls 9.
Described pressure-sensitive part is made up of lower valve body 1, upper valve body 6, bellows 4, wherein descend valve body 1 and upper valve body 6 to form pressure-sensitive chamber by interference fit, and lower valve body 1 is connected with the air aspiration cavity of compressor, bellows 4 is arranged in pressure-sensitive chamber, experience pressure of inspiration(Pi) Ps, shorten along with the increase of pressure of inspiration(Pi) Ps, pressure of inspiration(Pi) Ps reduces and extends.
Described power transmitting portions is made up of needle roller seat 3, needle roller 7 and upper valve body 6, and wherein needle roller 7 is arranged on needle roller seat 3, the fixing needle roller 7 of upper valve body 6; Needle roller seat 3 plays the object of fixing needle roller 7, avoid being obstructed because of skew-caused needle roller 7 motions of bellows 4 simultaneously, 7 of needle rollers are bellows to be changed to the power producing with pressure of inspiration(Pi) Ps pass to steel ball 9, thereby control valve port opening, regulate exhaust cavity to flow to the gas of compressor inner chamber how many, thereby reach the object that regulates Pc pressure, upper valve body 6 plays the effect of fixing needle roller herein.
Described valve part is made up of upper valve body 6, steel ball 9 and seating spring 10, wherein one end of upper valve body 6 and the intracavity inter-connection of compressor, the other end is connected with exhaust cavity, upper valve body 6 internal openings and steel ball 9 form valve port, seating spring 10 stationary balls 9, when work, seating spring 10 is for the reset of steel ball and fixing; Seating spring 10 is for the reset of steel ball and fixing.
Described sealing filtration fraction is made up of 3 O RunddichtringOs and a filter 11, wherein 3 O RunddichtringOs are an O RunddichtringO 2, the 2nd O RunddichtringO 5, the 3rd O RunddichtringO 8,3 O RunddichtringOs are arranged on respectively on lower valve body 1 and upper valve body 6, and filter 11 is arranged on upper valve body 6.3 O RunddichtringOs play seal action while being assembled on compressor, make air aspiration cavity, inner chamber, exhaust cavity in compressor isolated each other, simultaneously also isolated with ambient atmosphere, filter 11 is arranged on upper valve body 6, play impurity screening, prevent that foreign matter from entering the object of control valve internal influence control valve control accuracy.
Compressor at work, in the time that tide of motorism load increases, compressor air suction chamber (Ps) pressure rise, bellows can shorten after experiencing pressure of inspiration(Pi) Ps accordingly, seating spring resets steel ball, and ball valve is closed, and exhaust cavity is not communicated with compressor inner chamber, exhaust pressure Pd cannot enter into compressor inner chamber, and cavity pressure Pc still by the orifice plate in compressor to pressure of inspiration(Pi) Ps exhaust, cavity pressure Pc reduces, and the stroke of compressor piston is increased, discharge capacity increases, and refrigerating capacity increases.
In the time of tide of motorism load reduction, compressor air suction chamber (Ps) pressure drop, bellows can extend after experiencing pressure of inspiration(Pi) Ps accordingly, by power transmitting portions, steel ball is backed down, make exhaust cavity and compressor intracavity inter-connection, exhaust pressure Pd enters into compressor inner chamber fast, and cavity pressure Pc is increased, and the stroke of compressor piston is reduced, discharge capacity reduces, and refrigerating capacity reduces.
Claims (5)
1. the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor, it is characterized in that comprising pressure-sensitive part, power transmitting portions, valve part and sealing filtration fraction, lower valve body and upper valve body in wherein pressure-sensitive part form pressure-sensitive chamber by interference fit, the needle roller in upper valve body retention force transmitting portions; 3 O RunddichtringOs in sealing filtration fraction are arranged on respectively on lower valve body and upper valve body, the steel ball composition valve port in upper valve body internal openings and valve part, seating spring stationary balls.
2. the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor according to claim 1, it is characterized in that described pressure-sensitive part is made up of lower valve body, upper valve body, bellows, wherein descend valve body and upper valve body to form pressure-sensitive chamber by interference fit, bellows is arranged in pressure-sensitive chamber, and lower valve body is connected with the air aspiration cavity of compressor.
3. the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor according to claim 1, is characterized in that described power transmitting portions is made up of needle roller seat, needle roller and upper valve body, and wherein needle roller is arranged on needle roller seat, and upper valve body is fixed needle roller.
4. the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor according to claim 1, it is characterized in that described valve part is made up of upper valve body, steel ball and seating spring, wherein one end of upper valve body and the intracavity inter-connection of compressor, the other end is connected with exhaust cavity, upper valve body internal openings and steel ball composition valve port, seating spring stationary balls.
5. the small-sized single-way pneumatic control valve of Automotive Variable Displacement Compressor according to claim 1, it is characterized in that described sealing filtration fraction is made up of 3 O RunddichtringOs and a filter, wherein 3 O RunddichtringOs are an O RunddichtringO, the 2nd O RunddichtringO, the 3rd O RunddichtringO, 3 O RunddichtringOs are arranged on respectively on lower valve body and upper valve body, and filter is arranged on upper valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186813.XU CN203847366U (en) | 2014-04-17 | 2014-04-17 | Small single-channel pneumatic control valve of automotive air-conditioning variable-displacement compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420186813.XU CN203847366U (en) | 2014-04-17 | 2014-04-17 | Small single-channel pneumatic control valve of automotive air-conditioning variable-displacement compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847366U true CN203847366U (en) | 2014-09-24 |
Family
ID=51560391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420186813.XU Expired - Lifetime CN203847366U (en) | 2014-04-17 | 2014-04-17 | Small single-channel pneumatic control valve of automotive air-conditioning variable-displacement compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847366U (en) |
-
2014
- 2014-04-17 CN CN201420186813.XU patent/CN203847366U/en not_active Expired - Lifetime
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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: 20140924 |