CN201896725U - Compressor and cylinder cover thereof - Google Patents
Compressor and cylinder cover thereof Download PDFInfo
- Publication number
- CN201896725U CN201896725U CN2010206283887U CN201020628388U CN201896725U CN 201896725 U CN201896725 U CN 201896725U CN 2010206283887 U CN2010206283887 U CN 2010206283887U CN 201020628388 U CN201020628388 U CN 201020628388U CN 201896725 U CN201896725 U CN 201896725U
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- Prior art keywords
- compressor
- low
- pressure cavity
- next door
- face
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Abstract
The utility model relates to a compressor and a cylinder cover thereof, which can overcome the air leakage problem caused by the deformation of the cylinder cover during the process of the air sucking and discharge, the end surface of a partition wall which is used for dividing a cover body into a high-pressure cavity and a low-pressure cavity is provided with an elastic sealing piece.
Description
Technical field
The utility model relates to compressor and cylinder head thereof.
Background technique
Piston compressor is finished suction, compression and the discharging of refrigeration agent by the to-and-fro motion in each cylinder of a plurality of pistons; The plate member that is provided with between cylinder head and the cylinder, piston moves to the top, and cylinder pressure reduces, so suction valve chip is opened refrigeration agent and entered cylinder from low-pressure cavity, piston moves to the bottom, and cylinder pressure raises, so exhaust valve plate is opened, refrigeration agent from inblock cylinder to hyperbaric chamber.
Exhaust pressure makes the expansion of hyperbaric chamber volume, and cylinder head deforms, and next door between the high low pressure chamber and valve plate side produce the gap, cause leaking between the high low pressure chamber.
As shown in Figure 1, the cylinder body 1 of bi-directional swash plate type compressor, cylinder liner 2, suction valve chip 4, valve plate 5, exhaust valve plate 6, cylinder cover cushion 7 and cylinder head 8 are installed successively, suction valve chip 4, valve plate 5, exhaust valve plate 6 constitutes valve board assemblies, and the outside of cylinder body, cylinder head etc. is connected by some bolts 22 and compresses.Cylinder head comprises endoseptum 8A, intermediate bulkheads 8B, and cylinder head is divided into the low-pressure cavity 20 that sucks gas, hyperbaric chamber 21, the low-pressure cavity 20 of discharging gas.It is reciprocating that the rotation of swash plate 10 drives piston 11, when piston moves towards the top, cylinder 3 internal pressures reduce, suction valve chip 4 is opened, refrigeration agent enters cylinder from low-pressure cavity 20 by the suction port on the valve plate 5, and when piston moved towards the bottom, inner pressure of air cylinder increased, exhaust valve plate 6 is pushed open, and refrigeration agent enters hyperbaric chamber 21 from cylinder by the exhaust port on the valve plate.
The integral pressure in each chamber of compressor cylinder cover is greater than external atmosphere pressure, and cylinder head is the trend of outside protrusion distortion, relies on the tractive force of bolt 22 and is fixed on the cylinder body.The pressure of low-pressure cavity is generally also greater than external atmosphere pressure, so being the position of hyperbaric chamber, the middle part of cylinder head produces bigger axial protruding distortion, when static shown in Fig. 2 A, the aluminium alloy cylinder lid is influenced by exhaust pressure F during work, the distortion of generation shown in Fig. 2 B, produce relatively more obviously distortion from clamping bolt endoseptum far away, cause the gas of hyperbaric chamber to leak to low-pressure cavity.
The model utility content
The purpose of this utility model is to provide a kind of compressor and cylinder head gas thereof, can overcome the gas leakage problem that the distortion of cylinder head in the suction and discharge process causes.
Compressor cylinder cover of the present utility model comprises lid and lid is separated into the next door of hyperbaric chamber and low-pressure cavity, is characterized in that the end face in next door is provided with elastomer seal.
Described compressor cylinder cover, its further characteristics are, the next door is divided into intermediate bulkheads and endoseptum, cylinder head is divided into first low-pressure cavity, hyperbaric chamber, second low-pressure cavity from outside to inside, intermediate bulkheads is first low-pressure cavity and hyperbaric chamber at interval, endoseptum is the hyperbaric chamber and second low-pressure cavity at interval, and elastomer seal is located on the endoseptum end face.
Described compressor cylinder cover, its further characteristics be, the end face in next door is offered circular groove, and elastomer seal is an O type circle, is contained in the circular groove.
Described compressor cylinder cover, its further characteristics be, the cross section of circular groove is big trapezoidal of end osculum.
Described compressor cylinder cover, its further characteristics be, the end face in next door is offered groove, and Sealing is the rubber pad of band boss, and boss is embedded in groove.
Compressor of the present utility model, comprise cylinder block and head, be provided with valve board assembly between the cylinder block and head, cylinder head comprises lid and the next door that lid is separated into hyperbaric chamber and low-pressure cavity, be characterized in, be provided with elastomer seal between next door end face and the valve board assembly.
Described compressor, its further characteristics are, the next door is divided into intermediate bulkheads and endoseptum, cylinder head is divided into first low-pressure cavity, hyperbaric chamber, second low-pressure cavity from outside to inside, intermediate bulkheads is first low-pressure cavity and hyperbaric chamber at interval, endoseptum is the hyperbaric chamber and second low-pressure cavity at interval, and elastomer seal is located between endoseptum end face and the valve board assembly.
Described compressor, its further characteristics be, the end face in next door is offered circular groove, and elastomer seal is an O type circle, is contained in the circular groove.
Described compressor, its further characteristics be, the cross section of circular groove is big trapezoidal of end osculum.
Described compressor, its further characteristics be, the end face in next door is offered groove, and Sealing is the rubber pad of band boss, and boss is embedded in groove.
Owing to be provided with elastomer seal between next door end face and the valve board assembly, the material of elastomer seal has elasticity, be heated, stressed generation is expanded, distortion, can fill the gap that produces because of cylinder-head distortion between the valve plate side of next door and valve board assembly, the high low pressure chamber is completely cut off.Simultaneously, impact the when exhaust valve plate of Sealing available buffer valve board assembly is opened and the bump between exhaust valve plate and the cylinder cover cushion prevent that exhaust valve plate is impaired and reduce noise.
Description of drawings
Fig. 1 is the tectonic maps of bi-directional swash plate type compressor.
Phase diagram when Fig. 2 A is cylinder head static of an end of the bi-directional swash plate type compressor among Fig. 1.
Phase diagram when Fig. 2 B is the distortion of cylinder head of an end of the bi-directional swash plate type compressor among Fig. 1.
Fig. 3 is the phase diagram in compressor cylinder cover when distortion among the embodiment 1 of the present utility model.
Fig. 4 is the phase diagram in compressor cylinder cover when distortion among the embodiment 2 of the present utility model.
Fig. 5 A is the plan view of embodiment 2 Sealing.
Fig. 5 B is the plan view of variation example of embodiment 2 Sealing.
Embodiment
Embodiment 1
The following examples are to be applied in the bi-directional swash plate type compressor shown in Figure 1.
As shown in Figure 3,, offer circular groove 9 at the endoseptum place at this phenomenon, the O type of in circular groove 9, packing into circle 12, after the compressor assembling was finished, O type circle 12 was subjected to the extruding of valve plate one side and is out of shape, and circular groove 9 is filled up.Big trapezoidal of end osculum can be arranged in circular groove 9 cross sections, and its advantage is that the O type circle 12 of packing into is more more convenient than rectangle.
Bolt pretightening tightly is buckled in bonnet 8 on the cylinder body 1, and intermediate bulkheads is nearer from bolt, is subjected to the bolt traction action, be out of shape not obvious, and the therefore unnecessary O type circle of loading onto of intermediate bulkheads 8B.
When compressor operating cylinder head 8 deformed, endoseptum 8A separated with the valve plate side, and O type circle 12 is recovered to nature by original extrusion state, just in time fills the gap that produces between endoseptum 8A and the valve plate, prevented the leakage of high low pressure chamber.
During compressor operating, O type circle 12 tops are higher than circular groove 9, form the fulcrum that exhaust valve plate is opened, and impact when the available buffer exhaust valve plate is opened and the bump between exhaust valve plate and the cylinder cover cushion prevent that exhaust valve plate is impaired and reduce noise.
As shown in Figure 4, O type circle can be replaced to the rubber pad 13 that is arranged on the next door, not produce slippage on the 8A of next door for rubber pad 13 is remained on, next door 8A end face is offered groove 14.This groove promptly can be as the continuous annular among Fig. 5 A, also can be the groove as several separation among Fig. 5 B, and rubber pad 13 is provided with the boss 13A corresponding with groove with a side of next door 8A contact, and boss 13A is embedded in the groove 14.
When compressor is not worked, rubber pad 13 is arranged between next door 8A and the cylinder cover cushion in the mode of pressurized, when the compressor operating cylinder head deforms, endoseptum 8A separates with the valve plate side, rubber pad 13 is recovered to nature by original extrusion state, just in time fill the gap that produces between endoseptum 8A and the valve plate, prevent the leakage of high and low pressure chamber.Impact when rubber pad 13 available buffer exhaust valve plates are opened simultaneously and the bump between exhaust valve plate root and the cylinder cover cushion prevent that exhaust valve plate is impaired and reduce noise.
Claims (10)
1. compressor cylinder cover comprises lid and lid is separated into the next door of hyperbaric chamber and low-pressure cavity, it is characterized in that the end face in next door is provided with elastomer seal.
2. compressor cylinder cover as claimed in claim 1, it is characterized in that, the next door is divided into intermediate bulkheads and endoseptum, cylinder head is divided into first low-pressure cavity, hyperbaric chamber, second low-pressure cavity from outside to inside, intermediate bulkheads is first low-pressure cavity and hyperbaric chamber at interval, endoseptum is the hyperbaric chamber and second low-pressure cavity at interval, and elastomer seal is located on the endoseptum end face.
3. compressor cylinder cover as claimed in claim 1 is characterized in that the end face in next door is offered circular groove, and elastomer seal is an O type circle, is contained in the circular groove.
4. compressor cylinder cover as claimed in claim 3 is characterized in that, the cross section of circular groove is big trapezoidal of end osculum.
5. compressor cylinder cover as claimed in claim 1 is characterized in that the end face in next door is offered groove, and Sealing is the rubber pad of band boss, and boss is embedded in groove.
6. compressor, comprise cylinder block and head, be provided with valve board assembly between the cylinder block and head, cylinder head comprises lid and the next door that lid is separated into hyperbaric chamber and low-pressure cavity, it is characterized in that, be provided with elastomer seal between next door end face and the valve board assembly.
7. compressor as claimed in claim 6, it is characterized in that, the next door is divided into intermediate bulkheads and endoseptum, cylinder head is divided into first low-pressure cavity, hyperbaric chamber, second low-pressure cavity from outside to inside, intermediate bulkheads is first low-pressure cavity and hyperbaric chamber at interval, endoseptum is the hyperbaric chamber and second low-pressure cavity at interval, and elastomer seal is located between endoseptum end face and the valve board assembly.
8. compressor as claimed in claim 6 is characterized in that the end face in next door is offered circular groove, and elastomer seal is an O type circle, is contained in the circular groove.
9. compressor as claimed in claim 8 is characterized in that, the cross section of circular groove is big trapezoidal of end osculum.
10. compressor as claimed in claim 6 is characterized in that the end face in next door is offered groove, and Sealing is the rubber pad of band boss, and boss is embedded in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206283887U CN201896725U (en) | 2010-11-28 | 2010-11-28 | Compressor and cylinder cover thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206283887U CN201896725U (en) | 2010-11-28 | 2010-11-28 | Compressor and cylinder cover thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201896725U true CN201896725U (en) | 2011-07-13 |
Family
ID=44254633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206283887U Expired - Fee Related CN201896725U (en) | 2010-11-28 | 2010-11-28 | Compressor and cylinder cover thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201896725U (en) |
-
2010
- 2010-11-28 CN CN2010206283887U patent/CN201896725U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Shanghai City 200025 Madang Road No. 347 Patentee after: SANDEN HUAYU AUTOMOTIVE AIR-CONDITIONING CO., LTD. Address before: 200025 Shanghai city Luwan District Madang Road No. 347 Patentee before: Sandian Beier Automobile Air-Conditioner Co., Ltd., Shanghai |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110713 Termination date: 20181128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |