CN100424349C - Discharge valve assembly for reciprocating compressor - Google Patents
Discharge valve assembly for reciprocating compressor Download PDFInfo
- Publication number
- CN100424349C CN100424349C CNB031302033A CN03130203A CN100424349C CN 100424349 C CN100424349 C CN 100424349C CN B031302033 A CNB031302033 A CN B031302033A CN 03130203 A CN03130203 A CN 03130203A CN 100424349 C CN100424349 C CN 100424349C
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- valve
- discharge
- cylinder
- discharge valve
- valve spring
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Abstract
The present invention relates to a discharge valve assembly for a reciprocating compressor, which is composed of a cylinder fixedly arranged on a support frame assembly elastically supported in a casing, a piston combined with a rotor of the reciprocating compressor and making a straight reciprocating motion in compression space of the cylinder, a discharge valve for opening and closing the compression space of the cylinder, a valve spring for restricting the position of the discharge valve and supporting the discharge valve elastically, and a discharge cover for covering the terminal of the cylinder, wherein the discharge cover is used for accommodating the discharge valve and the valve spring and forming discharge space provided having a spring supporting surface and compressing refrigerant gas; the discharge cover is slantways formed into a supporting surface contacted with the spiral valve spring of the discharge valve. The present invention has the advantages that the discharge valve operates stably, the efficiency is increased because of less leakage of compressed gas, and the impact noise of the discharge valve can be inhibited.
Description
Technical field
The invention relates to the discharge valve assembly of reciprocal compressor, more detailed is about opening and closing the discharge valve assembly of cylinder pressing chamber.
Background technique
Generally, be that piston sucks in cylinder compression volume linear operation, pressurized gas toward the dbl act compressor.So also make the piston linear to-and-fro motion of interlock therewith, thereby suction, pressurized gas toward the drive motor straight reciprocating motion of dbl act compressor.
As shown in Figures 1 and 2, the discharge valve assembly of existing reciprocal compressor is the cylinder 1 that fixedly installs on the bracket component by portion's elastic support in the enclosure, be combined on the rotor of reciprocal electrodynamic machine and the piston 2 of straight reciprocating motion in the compression volume of cylinder 1, the discharge valve assembly formation of compress cold media air is discharged in the discharge side and the control that are placed on cylinder 1.
Valve spring 4 is clipped in an end on the fixed lobe that forms on expulsion valve 3 supporting surfaces, simultaneously the other end contact on the supporting surface of discharge cap 5 and by elastic support.And such valve spring 4 to be caused the interference that line is asked and is formed spirality by compression in order to get rid of when opening expulsion valve 3.
Because as above-mentioned formation, cold media air is compressed be drawn into the compression volume inside that fixedly installs the white cylinder 1 of trying to make a good showing on the bracket component of portion's elastic support in the enclosure by the straight reciprocating motion that is connected the piston 2 on the reciprocating type drive motor after.
If cold media air is compressed to more than the setting pressure in the compression volume inside of cylinder 1, to push open and be the pressing chamber terminal of shifter cylinder 1 expulsion valve 3 by spirality valve spring 4 elastic support, the inside that is discharged to discharge cap 5 is accommodated sky and is asked that the back discharges to the outside.
But the valve spring 4 of elastic support expulsion valve 3 is spiralitys that diameter reduction and volume get on, so contact the writhing number of the valve spring 4 on expulsion valve 3 supporting surfaces and originally differed half-turn; And if the writhing number of spring tails off, it is big that the rigidity of such valve spring 4 just becomes; If the number of turns becomes many in contrast, produce the rigidity difference of valve spring 4 along with diminishing; And because such structural characteristics, compress inhomogeneous by force, so there is expulsion valve 3 can not stablize the problem of running.
And, when expulsion valve 3 can not be stablized running, because the gas leakage of pressing chamber prevents function reduction, so cause compressor efficiency to descend.And because expulsion valve 3 can not contact regularly on the exhaust end of cylinder 1 and produce impact noise.
Summary of the invention
The present invention its objective is the discharge valve assembly that the unstable running of the expulsion valve that can prevent reciprocal compressor is provided and produces the reciprocal compressor of noise for the invention of dealing with problems.
For the attainment of one's purpose, the invention provides a kind of discharge valve assembly of reciprocal compressor, comprise the compression volume that opens and closes cylinder and possess certain thickness plate shape expulsion valve, the valve spring of elastic support expulsion valve, cover the exhaust end of cylinder and accommodate the discharge cap of expulsion valve and valve spring, it is characterized in that the nonuniformity that valve spring is placed on according to spiral valve spring rigidity forms on the supporting surface at tilt angle proportionally.
The discharge valve assembly of described reciprocal compressor, its feature discharge cap possesses the supporting surface that is formed slopely with the tilt angle is arranged.
The discharge valve assembly of described reciprocal compressor is characterized in that expulsion valve possesses the supporting surface that is formed slopely with the tilt angle is arranged.
The discharge valve assembly of described reciprocal compressor is characterized in that the weak spiral position of rigidity of valve spring is placed on the tilt angle opposite side distance from short supporting surface place.
The discharge valve assembly of reciprocal compressor of the present invention can be kept stable expulsion valve running, leaks so have because of reducing pressurized gas, and efficient rises; And can suppress the effect that expulsion valve produces impact noise.
Description of drawings
Fig. 1 is the part sectional arrangement drawing of the existing reciprocal compressor discharge valve assembly compressive state of diagram.
Fig. 2 is the part sectional arrangement drawing that the existing reciprocal compressor discharge valve assembly of diagram is discharged state.
Fig. 3 illustrates the part sectional arrangement drawing of reciprocal compressor discharge valve assembly compressive state according to an embodiment of the invention.
Fig. 4 illustrates the part sectional arrangement drawing of reciprocal compressor discharge valve assembly discharge state according to an embodiment of the invention.
Fig. 5 illustrates the part sectional arrangement drawing of reciprocal compressor discharge valve assembly variation in accordance with another embodiment of the present invention.
Explanation for figure major component symbol:
11: cylinder 12: piston
13: expulsion valve 13a: fixed lobe
13b, 15a: supporting surface 14: valve spring
15: discharge cap e
1, e
2: the tilt angle
Embodiment
Below, describe the formation and the running of the discharge valve assembly of reciprocal compressor according to an embodiment of the invention in detail according to figure.
Fig. 3 illustrates the part sectional arrangement drawing of reciprocal compressor discharge valve assembly compressive state according to an embodiment of the invention.Fig. 4 illustrates the part sectional arrangement drawing of reciprocal compressor discharge valve assembly discharge state according to an embodiment of the invention.
As shown in the figure, reciprocal compressor discharge valve assembly of the present invention is the cylinder 11 that fixedly installs on the bracket component by portion's elastic support in the enclosure, be combined on the rotor of reciprocal electrodynamic machine and the piston 12 of straight reciprocating motion in the compression volume of cylinder 11, the discharge valve assembly formation of compress cold media air is discharged in the discharge side and the control that are placed on cylinder 11.
Valve spring 14 is enclosed within the fixed lobe 13a that forms on expulsion valve 13 supporting surfaces and goes up and fix, so elastic support discharge cap 15, and to be caused the interference between line and formed spirality by compression in order to get rid of when opening expulsion valve 3.
For the valve spring 14 that makes elastic support expulsion valve 13 possesses uniform rigidity, discharge cap 15 is in order to apply full load to valve spring 14, so discharge cap 15 possesses the supporting surface 15a that is formed slopely with tilt angle e1 is arranged.
Because as above-mentioned formation, cold media air is compressed be drawn into the compression volume inside of the cylinder 11 that fixedly installs on the bracket component of portion's elastic support in the enclosure by the straight reciprocating motion that is connected the piston 12 on the dbl act drive motor after.
If cold media air is compressed to more than the setting pressure in the compression volume inside of cylinder, push open to the pressing chamber terminal of shifter cylinder 11 expulsion valve 13 by spirality valve spring 14 elastic support, be discharged in the inner accepting space of discharge cap 15.
Like this, in order to solve the problem of the expulsion valve 13 unstable runnings that cause by the inhomogeneous rigidity that contacts the valve spring 14 on expulsion valve 13 supporting surfaces for an end that opens and closes cylinder 11, be formed slopely the supporting surface 15a of discharge cap with tilt angle e1, and make the weak spiral position of rigidity of valve spring 14 be placed on the tilt angle opposite side distance from short supporting surface place.
Therefore, the position of supporting surface a little less than valve spring 14 rigidity that expulsion valve 13 tilts applies full load per-l Oad, so valve spring can be kept pressure relatively uniformly when compression.
Fig. 5 illustrates the part sectional arrangement drawing of reciprocal compressor discharge valve assembly variation in accordance with another embodiment of the present invention.And use identical symbol and omit explaining over and over again it for the position identical with the 1st embodiment.
Valve spring 14 be enclosed within fixed lobe 13a that expulsion valve 13 supporting surface 13b go up to form go up fixing, valve spring 14 contacts simultaneously on the supporting surface 13b of discharge cap 15 by elastic support.And valve spring 14 to be caused the interference between line and is formed spirality by compression in order to get rid of when opening expulsion valve 3.
Because as above-mentioned formation, in order to solve the problems of the expulsion valve 13 unstable runnings that cause by the inhomogeneous rigidity that is the valve spring 14 of an end in contact on expulsion valve 13 supporting surfaces of switching cylinder 11, expulsion valve 13 supporting surfaces are formed obliquely, and make the weak position of rigidity of valve spring 14 be placed on opposite side distance from the tilt angle that expulsion valve 13 tilts from short supporting surface.
Therefore can apply full load to the position a little less than valve spring 14 rigidity, so spring can be kept pressure relatively uniformly when compression.
Claims (3)
1. the discharge valve assembly of a reciprocal compressor is characterized in that: the cylinder that fixedly installs on the bracket component of portion's elastic support in the enclosure; Be combined on the rotor of reciprocal compressor and the piston of straight reciprocating motion in the compression volume of cylinder; Open and close the compression volume of cylinder and possess certain thickness plate shape expulsion valve; The valve spring of elastic support expulsion valve; Cover the exhaust end of cylinder and accommodate expulsion valve and the discharge cap of valve spring; The nonuniformity that valve spring is placed on according to spiral valve spring rigidity forms on the supporting surface at tilt angle proportionally, and the weak spiral position of the rigidity of valve spring is placed on the tilt angle opposite side distance from short supporting surface place.
2. the discharge valve assembly of reciprocal compressor according to claim 1 is characterized in that discharge cap possesses the supporting surface that is formed slopely with the tilt angle is arranged.
3. the discharge valve assembly of reciprocal compressor according to claim 1 is characterized in that expulsion valve possesses the supporting surface that is formed slopely with the tilt angle is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031302033A CN100424349C (en) | 2003-06-17 | 2003-06-17 | Discharge valve assembly for reciprocating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031302033A CN100424349C (en) | 2003-06-17 | 2003-06-17 | Discharge valve assembly for reciprocating compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1566656A CN1566656A (en) | 2005-01-19 |
| CN100424349C true CN100424349C (en) | 2008-10-08 |
Family
ID=34469581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031302033A Expired - Fee Related CN100424349C (en) | 2003-06-17 | 2003-06-17 | Discharge valve assembly for reciprocating compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100424349C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2598284A1 (en) * | 2005-03-07 | 2006-09-14 | Carrier Corporation | Compressor sound suppression |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1221857A (en) * | 1997-12-30 | 1999-07-07 | Lg电子株式会社 | Discharge valve system for linear compressor |
| US6341950B1 (en) * | 1997-03-21 | 2002-01-29 | Robert Bosch Gmbh | Piston pump |
| CN1372077A (en) * | 2001-02-24 | 2002-10-02 | Lg电子株式会社 | Reciprocative compressor |
| CN1380945A (en) * | 2000-05-29 | 2002-11-20 | Lg电子株式会社 | Discharge valve apparatus for reciprocating compressor |
| US20030091449A1 (en) * | 2001-04-04 | 2003-05-15 | Gye-Young Song | Reciprocating compressor |
-
2003
- 2003-06-17 CN CNB031302033A patent/CN100424349C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6341950B1 (en) * | 1997-03-21 | 2002-01-29 | Robert Bosch Gmbh | Piston pump |
| CN1221857A (en) * | 1997-12-30 | 1999-07-07 | Lg电子株式会社 | Discharge valve system for linear compressor |
| CN1380945A (en) * | 2000-05-29 | 2002-11-20 | Lg电子株式会社 | Discharge valve apparatus for reciprocating compressor |
| CN1372077A (en) * | 2001-02-24 | 2002-10-02 | Lg电子株式会社 | Reciprocative compressor |
| US20030091449A1 (en) * | 2001-04-04 | 2003-05-15 | Gye-Young Song | Reciprocating compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1566656A (en) | 2005-01-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081008 |