CN201436396U - Exhaust valve for compressor - Google Patents
Exhaust valve for compressor Download PDFInfo
- Publication number
- CN201436396U CN201436396U CN2009200599807U CN200920059980U CN201436396U CN 201436396 U CN201436396 U CN 201436396U CN 2009200599807 U CN2009200599807 U CN 2009200599807U CN 200920059980 U CN200920059980 U CN 200920059980U CN 201436396 U CN201436396 U CN 201436396U
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- CN
- China
- Prior art keywords
- exhaust valve
- exhaust
- valve plate
- small boss
- compressor
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- Expired - Lifetime
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Abstract
The utility model relates to an exhaust valve for compressor. One end of the exhaust valve is fixed on a valve seat, the other end is provided with a small boss, the small boss is embedded or inserted into an exhaust hole of the valve seat when the exhaust is end, thus reducing the clearance volumetric quantity in the exhaust hole. The small boss and the exhaust valve are integrally formed by stamping. Or the small boss is made of a layer of material adhered on the exhaust valve. Compared with the prior art, the utility model has the following beneficial technical effects: more effectively reducing the clearance volumetric quantity, simultaneously ensuring the intensity and rigidity of the valve seat, not leading the valve seat to deform and stiffly deteriorate, and improving the efficiency of the compressor.
Description
Technical field
The utility model relates to the exhaust valve plate of a kind of compressor, particularly compressor, the clearance volume that it can reduce to form between compression member.
Background technique
Compressor generally comprises closed shell 1, motor component 2, compression member etc., shown in accompanying drawing 1-4.Closed shell 1 is provided with sucking pipe and outlet pipe.Compression member comprises cylinder 4, slide plate (not shown among Fig. 4), piston 5, upper bearing (metal) 3, lower bearing 6, bent axle 7 etc.The cylinder 4 that offers intakeport and relief opening is arranged in the closed shell 1, is installed in the upper and lower bearing while at cylinder two ends about in the of 4 or exhaust components such as exhaust valve plate 9, snubber 8 are installed separately, and piston 5 is arranged on the eccentric shaft.Piston 5 rolls along cylinder 4 inwalls during work, slide plate is installed in the vane slot of offering on the cylinder 4, when piston 5 rolls in active chamber, slide plate its front end under the effect of spring keeps closely contacting with piston 5 cylindricals, thereby slide plate and piston 5 are divided into air aspiration cavity and compression chamber two-part with the point of contact of cylinder 4 inwalls with cylinder 4 inner chambers, the volume size of air aspiration cavity and compression chamber is rotated along with piston 5 and is changed, and the pressure of compression intracavity gas then reduces along with compression chamber and increases.When exhaust valve plate 9 both sides pressure reduction during greater than the pretightening force of exhaust valve plate self, exhaust valve plate 9 is opened, the beginning exhaust process.After exhaust process finished, compression chamber communicated with air aspiration cavity by 11 mouthfuls of exhaust ports, and its internal high pressure gas expands rapidly to air aspiration cavity, reduces effective aspirated volume in the cylinder, thereby causes compressor volume decrease in efficiency.
Existing compressor all is to adopt straight exhaust valve plate 9, as shown in Figure 3, can't play the effect that reduces clearance volume.
For reducing clearance volume, mentality of designing in the past is often with bearing valve seat attenuate.Yet the valve seat attenuate will cause bearing rigidity to die down, be out of shape increasing, and technique controlling difficulty is big, causes leakage failure, fail to effectively reduce clearance volume and improve volumetric efficiency.Therefore how to effectively reduce clearance volume, improve the volume and the overall efficiency of compressor, become the important topic of relevant scientific research personnel's development and exploitation.
The model utility content
The purpose of this utility model aims to provide a kind of simple and reasonable, manufacture cost is lower, and is reliable, can effectively reduce the clearance volume that exhaust port brings, thereby improve the volume of compressor and the Compressor Air Exhaust Valve Plate of overall efficiency, to overcome deficiency of the prior art.
Press the exhaust valve plate of a kind of compressor of this purpose design, one end of exhaust valve plate is fixed on the valve seat, its structure characteristic is that the other end of exhaust valve plate is provided with small boss, and small boss embedded or is inserted in the exhaust port of valve seat when exhaust finished, thereby reduced clearance volume amount in the exhaust port.
Described small boss and the moulding of exhaust valve plate integrated punching.Perhaps small boss is to adhere to layer of material in addition to constitute on exhaust valve plate.
Described small boss is a frustoconic shape, cylindrical or spherical, its diameter and highly all be slightly less than exhaust port on the valve seat.The cross section of small boss is an arc, square or trapezoidal, and the exhaust port on its boundary dimension and the valve seat adapts.
The utility model compared with prior art, its useful technique effect is: more effective clearance volume amount that reduces to a greater extent, guarantee the strong rigidity of valve seat simultaneously, can not cause that valve seat distortion and rigidity worsen, the efficient of raising compressor.
Description of drawings
Fig. 1 is the upper bearing (metal) and clearance volume (grid hatching line) schematic representation of prior art.
Fig. 2 is the lower bearing and clearance volume (grid hatching line) schematic representation of prior art.
Fig. 3 is the exhaust valve plate structural representation of prior art.
Fig. 4 is a compressor compresses block diagram of the present utility model.
Fig. 5 is upper bearing (metal) of the present utility model and clearance volume (grid hatching line) schematic representation.
Fig. 6 is lower bearing of the present utility model and clearance volume (grid hatching line) schematic representation.
Fig. 7 is the exhaust valve plate structural representation of band frustoconic shape small boss.
Fig. 8 is the exhaust valve plate structural representation with cylindrical small boss.
Fig. 9 is the exhaust valve plate structural representation of dribbling shape small boss.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 4-Fig. 9, the compression member of this compressor comprises cylinder 4, piston 5, upper bearing (metal) 3, lower bearing 6, bent axle 7.The cylinder 4 that offers intakeport and relief opening is arranged in the closed shell 1, be installed in cylinder about in the of 4 the upper and lower Bearing Installation at two ends exhaust components such as exhaust valve plate 9, snubber 8 are arranged, piston 5 is arranged on the eccentric shaft.Exhaust valve plate 9 one end side surface are provided with small boss 10, the diameter of small boss and highly be slightly less than exhaust port 11 on the valve seat, and small boss 10 roots are connected with exhaust valve plate 9 side arc transition.Small boss 10 can be frustoconic shape (see figure 7), cylindrical (see figure 8) or hemisphere (see figure 9).
During work, piston 5 rolls in compresser cylinder 4.Gas in the compression chamber is compressed, and when exhaust valve plate 9 both sides pressure reduction surpassed the exhaust valve plate pretightening force, pressurized gas were pushed exhaust valve plate 9 outside exhausts open.When exhaust process finishes, reach remaining compression chamber between exhaust port 11 and the exhaust valve plate 9 and be clearance volume.Piston 5 is rotated further then that compression chamber communicates with air aspiration cavity by exhaust port, and residual pressurized gas expand to air aspiration cavity in the clearance volume, and the gas of expansion has occupied a part of aspirated volume.
When exhaust valve plate 9 was not with small boss 10, valve seat exhaust port 11 clearance volumes were that exhaust port 11 areas are multiplied by the valve seat height, as shown in Figure 1 and Figure 2.When exhaust valve plate 9 band small boss 10, small boss 10 embeds or is inserted in the exhaust port 11 of valve seat, has reduced the clearance volume that exhaust port 11 brings, and the volume that small boss 10 embeds is exactly exhaust port 11 clearance volumes that are reduced, as Fig. 5, shown in Figure 6.
Employing has the exhaust valve plate of small boss and has realized the minimizing clearance volume, improves the volume of inspiration gas, improves compressor volume efficient, thereby improves the purpose of compressor overall efficiency.
Claims (4)
1. the exhaust valve plate of a compressor, an end of exhaust valve plate (9) is fixed on the valve seat, it is characterized in that the other end of exhaust valve plate is provided with small boss (10), and small boss embedded or is inserted in the exhaust port (11) of valve seat when exhaust finished.
2. according to the exhaust valve plate of the described compressor of claim 1, it is characterized in that described small boss (10) and exhaust valve plate (9) integrated punching moulding.
3. according to the exhaust valve plate of the described compressor of claim 1, it is characterized in that described small boss (10) is to adhere to layer of material in addition to constitute on exhaust valve plate (9).
4. according to the exhaust valve plate of claim 1,2 or 3 described compressors, it is characterized in that described small boss (10) is frustoconic shape, cylindrical or spherical, its diameter and highly all be slightly less than exhaust port (11) on the valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200599807U CN201436396U (en) | 2009-07-02 | 2009-07-02 | Exhaust valve for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200599807U CN201436396U (en) | 2009-07-02 | 2009-07-02 | Exhaust valve for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436396U true CN201436396U (en) | 2010-04-07 |
Family
ID=42372850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200599807U Expired - Lifetime CN201436396U (en) | 2009-07-02 | 2009-07-02 | Exhaust valve for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436396U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564690A (en) * | 2015-01-08 | 2015-04-29 | 广东美芝制冷设备有限公司 | Compression mechanism and compressor provided with same |
-
2009
- 2009-07-02 CN CN2009200599807U patent/CN201436396U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564690A (en) * | 2015-01-08 | 2015-04-29 | 广东美芝制冷设备有限公司 | Compression mechanism and compressor provided with same |
| CN104564690B (en) * | 2015-01-08 | 2016-11-16 | 广东美芝制冷设备有限公司 | Compression mechanism and the compressor with it |
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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: 20100407 |
|
| CX01 | Expiry of patent term |