CN107701411A - Automotive Variable Displacement Compressor single-way pneumatic control valve - Google Patents
Automotive Variable Displacement Compressor single-way pneumatic control valve Download PDFInfo
- Publication number
- CN107701411A CN107701411A CN201711116932.2A CN201711116932A CN107701411A CN 107701411 A CN107701411 A CN 107701411A CN 201711116932 A CN201711116932 A CN 201711116932A CN 107701411 A CN107701411 A CN 107701411A
- Authority
- CN
- China
- Prior art keywords
- needle roller
- valve body
- steel ball
- variable displacement
- upper valve
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
- F04B49/225—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves with throttling valves or valves varying the pump inlet opening or the outlet opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1006—Adaptations or arrangements of distribution members the members being ball valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Proposed by the present invention is a kind of Automotive Variable Displacement Compressor single-way pneumatic control valve, and its structure includes pressure-sensitive part, valve port part；Pressure-sensitive part includes lower valve body and upper valve body, and lower valve body and upper valve body form pressure-sensitive chamber by being interference fitted, and pressure-sensitive intracavitary has bellows；Valve port part includes needle roller seat, steel ball, needle roller, coordinates between needle roller seat and needle roller for gap, has hole inside upper valve body, has steel ball in hole, one end of steel ball connects with seating spring, and the other end of steel ball connects with needle roller, and there is taper hole one end that needle roller connects with steel ball.Advantage：1）Position it is more reliable, without crooked risk；2）The maximum opening of convenient control valve port；3）It can ensure that steel ball motion is smooth and avoids crooked；4）Needle roller clamping stagnation risk is reduced, reduces the requirement on machining accuracy to part.
Description
Technical field
The present invention relates to single-way pneumatic control valve, belongs to Automotive Variable Displacement Compressor component technology field.
Background technology
The existing small-sized single channel Pneumatic valve for Automotive Variable Displacement Compressor（Patent No. CN 203847366
U）, its structure is including pressure-sensitive part, power transmitting portions, valve portion and seals filtration fraction, the wherein lower valve in pressure-sensitive part
Body and upper valve body form pressure-sensitive chamber by being interference fitted, and experience compressor air suction cavity pressure Ps, upper valve body fixed force transmitting portions
In needle roller；3 O-ring seals in sealing filtration fraction are separately mounted in lower valve body and upper valve body, are opened inside upper valve body
Compressor cavity pressure Pc is experienced in hole with the steel ball composition valve port in valve portion, one end, and compressor discharge chamber pressure is experienced in one end
Power Pd, seating spring stationary balls.
Its structure, for bellows under normal pressure or negative pressure condition, valve port opening is maximum, and needle roller contacts with steel ball point for point,
Compression spring, it is easily crooked, and upper valve body hole size is larger, aggravates the crooked degree of steel ball, within air-conditioning systems, there is pressure
In the case of, bellows compression, steel ball moves to valve port direction, and energy normal switching-off, but if in the case where steel ball is crooked, steel
Ball moves along upper valve body inner hole wall to valve port direction, because there is upper valve body endoporus to have step, causes steel ball motion not smooth, there is clamping stagnation.
The content of the invention
Proposed by the present invention is a kind of Automotive Variable Displacement Compressor single-way pneumatic control valve, and its purpose is intended to gram
The drawbacks described above present in prior art is taken, steel ball is easily crooked in the prior art, motion is not smooth for solution, and needle roller easily produces card
The problem of stagnant.
The technical solution of the present invention：Automotive Variable Displacement Compressor single-way pneumatic control valve, its structure bag
Include pressure-sensitive part, valve port part；Pressure-sensitive part includes lower valve body 1 and upper valve body 6, and lower valve body 1 and upper valve body 6 pass through interference fit
Pressure-sensitive chamber is formed, pressure-sensitive intracavitary has bellows 4；Valve port part includes needle roller seat 3, steel ball 9, needle roller 7, needle roller seat 3 and needle roller 7 it
Between coordinate for gap, have hole inside upper valve body 6, have steel ball 9 in hole, one end of steel ball 9 connects with seating spring 10, steel ball 9
The other end connects with needle roller 7, and there is taper hole one end that needle roller 7 connects with steel ball 9.
Advantage：
1）The both ends of steel ball 9 are positioned by valve body spring 10 and the taper hole of needle roller 7, and positioning is more reliable, without crooked risk；
2）By needle roller seat 3 and the displacement position-limiting of upper valve body 6, to control the maximum opening of valve port, control in 0.3mm-0.5mm；
3）Upper valve body 6 and the gap of steel ball 9 be 0.5 mm -0.6mm, aperture R0.5mm rounding ofves, it is ensured that steel ball move it is smooth and
Avoid crooked；
4）Needle roller seat 3 is coordinated with needle roller 7 using gap, reduces the clamping stagnation risk of needle roller 7, and reducing will to the machining accuracy of part
Ask.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the middle-size and small-size single-way pneumatic control valve of prior art.
Accompanying drawing 2 is the structural representation of the present invention.
Accompanying drawing 3 is the limit part structural representation of the present invention.
Accompanying drawing 4 is the targeting scheme structural representation of the present invention.
1 in accompanying drawing be lower valve body, 2 be the first O-ring seals, 3 be needle roller seat, 4 be bellows, 5 be the 2nd O shapes sealing
Circle, 6 be upper valve body, 7 be needle roller, 8 be the 3rd O-ring seals, 9 be steel ball, 10 be seating spring, 11 be filter.
Embodiment
Automotive Variable Displacement Compressor single-way pneumatic control valve, its structure include pressure-sensitive part, valve port part；Sense
Laminate section includes lower valve body 1 and upper valve body 6, and lower valve body 1 and upper valve body 6 form pressure-sensitive chamber by being interference fitted, and pressure-sensitive intracavitary has
Bellows 4；Valve port part includes needle roller seat 3, steel ball 9, needle roller 7, coordinates between needle roller seat 3 and needle roller 7 for gap, upper valve body 6
There is hole inside, there is steel ball 9 in hole, and one end of steel ball 9 connects with seating spring 10, and the other end of steel ball 9 connects with needle roller 7, rolling
There is taper hole one end that pin 7 connects with steel ball 9.
The steel ball 9 is located in the hole that the inside of upper valve body 6 is opened, and has gap with hole inwall around steel ball 9, gap preferably exists
Between 0.5 mm -0.6mm.
There are R0.5mm rounding ofves in the aperture of the 6 inside institutes of upper valve body perforate, ensures that steel ball motion is smooth.
The taper hole of described one end of needle roller 7 is integrally in contact in cone or circular arc, taper hole with steel ball 9, and taper hole plays pair
The effect that steel ball 9 is positioned, positioning is reliable, without crooked risk.
The needle roller seat 3 is with upper valve body 6 by displacement position-limiting, and to control the maximum opening of valve port, maximum opening control exists
Between 0.3mm-0.5mm；Valve port range coordinates distance to determine by needle roller seat 3 with upper valve body 6.
Described one end of needle roller 7 connects with steel ball 9, and the other end of needle roller 7 preferably has projection, projection insertion needle roller
In seat 3, coordinate between projection and needle roller seat 3 for gap, just will rolling when in the fully-inserted needle roller seat 3 of projection
The port of needle stand 3 is blocked, and plays a part of close port, when projection initially moves off needle roller seat 3, is arrived and is opened valve port
Effect.
The Automotive Variable Displacement Compressor also includes sealing filtration fraction, sealing filtering with single-way pneumatic control valve
Part includes the first O-ring seals 2, the second O-ring seals 5, the 3rd O-ring seals 8, filter 11, the first O-ring seals 2
It is arranged on the second O-ring seals 5 in lower valve body 1, the 3rd O-ring seals 8 are arranged on upper valve body 6, and filter 11 is arranged on
On the end face of upper valve body 6.
During work, the bellows 4 of pressure-sensitive intracavitary experiences compressor air suction cavity pressure Ps, when pressure change, bellows 4
Shifting changes therewith, opens or closes valve port；Valve port part is made up of needle roller seat 3, upper valve body 6, steel ball 9, needle roller 7, needle roller
Seat 3 is coordinated with needle roller 7 using gap, and the internal openings of upper valve body 6 also form a valve port, this valve with the steel ball 9 in valve port part
Compressor cavity pressure Pc is experienced in mouth one end, and this valve port other end experiences compressor air-discharging cavity pressure Pd.
Compressor at work, when automobile thermic load increases, compressor air suction chamber（Ps）Pressure rises, bellows impression
It can shorten accordingly after pressure of inspiration(Pi) Ps, seating spring resets steel ball, and ball valve is closed, and discharge chamber does not connect with compressor inner chamber
Logical, pressure at expulsion Pd cannot be introduced into compressor inner chamber, and cavity pressure Pc yet by the orifice plate in compressor to pressure of inspiration(Pi)
Ps is vented, and cavity pressure Pc reduces, and increases the stroke of compressor piston, discharge capacity increase, refrigerating capacity increase.
When automobile thermic load reduces, compressor air suction chamber（Ps）Pressure declines, and bellows experiences meeting after pressure of inspiration(Pi) Ps
Corresponding elongation, by power transmitting portions, steel ball top is opened, and makes discharge chamber and compressor intracavity inter-connection, and pressure at expulsion Pd is fast
Speed enters compressor inner chamber, increases cavity pressure Pc, reduces the stroke of compressor piston, and discharge capacity reduces, and refrigerating capacity subtracts
It is few.
Embodiment
Automotive Variable Displacement Compressor single-way pneumatic control valve, its structure is by pressure-sensitive part, valve port part, sealing
Filtration fraction forms；Pressure-sensitive part includes lower valve body 1 and upper valve body 6, and lower valve body 1 and upper valve body 6 are by being interference fitted composition sense
Chamber is pressed, pressure-sensitive intracavitary has bellows 4；Valve port part is made up of needle roller seat 3, upper valve body 6, steel ball 9, needle roller 7, needle roller seat 3 and rolling
Coordinate between pin 7 for gap, have hole inside upper valve body 6, have steel ball 9 in hole, one end of steel ball 9 connects with seating spring 10, steel
The other end of ball 9 connects with needle roller 7, and there is taper hole one end that needle roller 7 connects with steel ball 9.
The steel ball 9 is located in the hole that the inside of upper valve body 6 is opened, and has gap, gap around steel ball 9 between the inwall in hole
It is preferred that between 0.5 mm -0.6mm.
There are R0.5mm rounding ofves in the aperture of the 6 inside institutes of upper valve body perforate, ensures that steel ball motion is smooth.
The taper hole of described one end of needle roller 7 is integrally in contact in cone, taper hole with steel ball 9, and taper hole plays to be carried out to steel ball 9
The effect of positioning, positioning is reliable, without crooked risk.
The needle roller seat 3 is with upper valve body 6 by displacement position-limiting, and to control the maximum opening of valve port, maximum opening control exists
Between 0.3mm-0.5mm；Valve port range coordinates distance to determine by needle roller seat 3 with upper valve body 6.
Described one end of needle roller 7 connects with steel ball 9, and the other end of needle roller 7 preferably has projection, projection insertion needle roller
In seat 3, coordinate between projection and needle roller seat 3 for gap, just will rolling when in the fully-inserted needle roller seat 3 of projection
The port of needle stand 3 is blocked, and plays a part of close port, when projection initially moves off needle roller seat 3, is arrived and is opened valve port
Effect.
The sealing filtration fraction, sealing filtration fraction include the first O-ring seals 2, the second O-ring seals 5, the 3rd O
Shape sealing ring 8, filter 11, the first O-ring seals 2 and the second O-ring seals 5 are arranged in lower valve body 1, the sealing of the 3rd O shapes
Circle 8 is arranged on upper valve body 6, and filter 11 is arranged on the end face of upper valve body 6.
Claims (7)
1. Automotive Variable Displacement Compressor single-way pneumatic control valve, it is characterized in that including pressure-sensitive part, valve port part；Sense
Laminate section includes lower valve body（1）And upper valve body（6）, lower valve body（1）And upper valve body（6）Pressure-sensitive chamber is formed by being interference fitted, sense
Pressure intracavitary has bellows（4）；Valve port part includes needle roller seat（3）, steel ball（9）, needle roller（7）, needle roller seat（3）With needle roller（7）It
Between for gap coordinate, upper valve body（6）There is hole inside, has steel ball in hole（9）, steel ball（9）One end and seating spring（10）Connect,
Steel ball（9）The other end and needle roller（7）Connect, needle roller（7）With steel ball（9）There is taper hole the one end to connect.
2. Automotive Variable Displacement Compressor single-way pneumatic control valve according to claim 1, it is characterized in that described
Steel ball（9）There is gap between surrounding and the inwall in hole, gap is between 0.5mm -0.6mm.
3. Automotive Variable Displacement Compressor single-way pneumatic control valve according to claim 1, it is characterized in that described
Upper valve body（6）There are R0.5mm rounding ofves in the aperture of internal institute's perforate.
4. Automotive Variable Displacement Compressor single-way pneumatic control valve according to claim 1, it is characterized in that described
Needle roller（7）On taper hole in cone or circular arc, taper hole and steel ball（9）Connect.
5. Automotive Variable Displacement Compressor single-way pneumatic control valve according to claim 1, it is characterized in that described
Needle roller seat（3）With upper valve body（6）By displacement position-limiting, to control the maximum opening of valve port, maximum opening is controlled in 0.3mm-
Between 0.5mm；Valve port range is by needle roller seat（3）With upper valve body（6）Distance is coordinated to determine.
6. Automotive Variable Displacement Compressor single-way pneumatic control valve according to claim 1, it is characterized in that described
Needle roller（7）One end and steel ball（9）Connect, needle roller（7）The other end have a projection, projection insertion needle roller seat（3）It is interior, it is convex
Go out part and needle roller seat（3）Between for gap coordinate, when the fully-inserted needle roller seat of projection（3）When interior, just by needle roller seat
（3）Port block, play a part of close port, when projection initially moves off needle roller seat（3）When, arrive and open valve port
Effect.
7. Automotive Variable Displacement Compressor single-way pneumatic control valve according to claim 1, it is characterized in that also wrapping
Sealing filtration fraction is included, sealing filtration fraction includes the first O-ring seals（2）, the second O-ring seals（5）, the 3rd O shapes sealing
Circle（8）, filter（11）, the first O-ring seals（2）With the second O-ring seals（5）Installed in lower valve body（1）On, the 3rd O shapes
Sealing ring（8）Installed in upper valve body（6）On, filter（11）Installed in upper valve body（6）End face on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116932.2A CN107701411A (en) | 2017-11-13 | 2017-11-13 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711116932.2A CN107701411A (en) | 2017-11-13 | 2017-11-13 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107701411A true CN107701411A (en) | 2018-02-16 |
Family
ID=61180119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711116932.2A Pending CN107701411A (en) | 2017-11-13 | 2017-11-13 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701411A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613393Y (en) * | 2003-04-02 | 2004-04-28 | 苏州新智机电工业有限公司 | Control valve for displacement changeable air conditioner of car |
| WO2006006560A1 (en) * | 2004-07-13 | 2006-01-19 | Sanden Corporation | Capacity control valve for clutchless variable displacement swash plate-type compressor |
| CN201237008Y (en) * | 2008-06-24 | 2009-05-13 | 苏州新智机电工业有限公司 | Pneumatic control valve with filter |
| 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 |
| CN207485655U (en) * | 2017-11-13 | 2018-06-12 | 苏州新智机电工业有限公司 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
-
2017
- 2017-11-13 CN CN201711116932.2A patent/CN107701411A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2613393Y (en) * | 2003-04-02 | 2004-04-28 | 苏州新智机电工业有限公司 | Control valve for displacement changeable air conditioner of car |
| WO2006006560A1 (en) * | 2004-07-13 | 2006-01-19 | Sanden Corporation | Capacity control valve for clutchless variable displacement swash plate-type compressor |
| CN201237008Y (en) * | 2008-06-24 | 2009-05-13 | 苏州新智机电工业有限公司 | Pneumatic control valve with filter |
| 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 |
| CN207485655U (en) * | 2017-11-13 | 2018-06-12 | 苏州新智机电工业有限公司 | Automotive Variable Displacement Compressor single-way pneumatic control valve |
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