CN201588784U - Structure - Google Patents
Structure Download PDFInfo
- Publication number
- CN201588784U CN201588784U CN2009202864883U CN200920286488U CN201588784U CN 201588784 U CN201588784 U CN 201588784U CN 2009202864883 U CN2009202864883 U CN 2009202864883U CN 200920286488 U CN200920286488 U CN 200920286488U CN 201588784 U CN201588784 U CN 201588784U
- Authority
- CN
- China
- Prior art keywords
- piston
- intermediate plate
- back pressure
- ring groove
- compressor
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Compressor (AREA)
Abstract
The utility model relates to a structure capable of realizing fuel feeding with back pressure in a bipolar rotor compressor which comprises piston ring grooves, a gas extracting hole and an intermediate plate groove; the piston ring grooves are arranged on the upper and lower end faces of a piston in a second-stage compression cavity of the compressor and the upper and lower end faces of the piston are communicated with each other by a communicating pore; the intermediate plate groove is arranged on the intermediate plate of the compressor. Compared with the prior art, the structure capable of realizing fuel feeding with back pressure in the bipolar rotor compressor has the advantages of reliable fuel feeding, motor efficiency and reliability increase, etc.
Description
Technical field
The utility model relates to a kind of compressor air-discharging structure, especially relates to a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing.
Background technique
In middle back pressure twin-stage rotor-type compressor, the first order is equivalent to the high back pressure structure, but the bent axle normal fuel injection; The second level is equivalent to low back pressure compressor, and refrigerant flows to the compressor center from compression chamber and exhaust cavity under existing pump oil structure, last shafting oil hole effective fuel feeding under the pressurized gas effect, and last is lubricated and can not guarantee, the compressor reliability reduction.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of reliable for the defective that overcomes above-mentioned prior art existence, efficiently can realize back pressure oil supply structure in the bipolar rotor-type compressor.
The purpose of this utility model can be achieved through the following technical solutions: a kind ofly realize back pressure oil supply structure in the bipolar rotor-type compressor, it is characterized in that, this structure comprises piston ring groove, pulls out pore and intermediate plate cutting, described piston ring groove is arranged on the piston upper and lower end face in the compression chamber of the compressor second level, this piston upper and lower end face is communicated with by intercommunicating pore, and described intermediate plate cutting is arranged on the intermediate plate of compressor.
The upper-end surface piston ring groove internal diameter of described piston is greater than upper cylinder cover annular groove external diameter and twice piston throw of eccentric sum.
The upper-end surface piston ring groove external diameter of described piston interdicts the poor of size less than the exhaust seat ring of piston external diameter and twice.
The lower end surface piston ring groove internal diameter of described piston is greater than intermediate plate internal diameter and twice piston throw of eccentric sum.
The lower end surface piston ring groove external diameter of described piston is poor less than piston external diameter and twice piston ring groove minimum thickness.
The length of described intermediate plate cutting is between piston lower surface piston ring groove external diameter track and piston inner diameter track.
Described intermediate plate cutting is over against the intakeport position of compressor.
Compared with prior art, in the back pressure twin-stage rotor-type compressor, the first order is equivalent to the high back pressure structure in the utility model, but the bent axle normal fuel injection; The second level is equivalent to low back pressure compressor, by piston ring groove, pull out cooperating between pore and the intermediate plate cutting, in making the back pressure twin-stage rotor-type compressor second level be compressed in gas that any angle position leaks from compression chamber and exhaust cavity can by annular groove and pull out pore be discharged to the pressure chamber, shafting oil hole reliability fuel feeding in the assurance.
Description of drawings
Fig. 1 is a back pressure oil supply structure schematic representation in the bipolar rotor-type compressor of the utility model;
Fig. 2 is the utility model upper cylinder cover annular groove sealed structural representation;
Fig. 3 is the utility model upper cylinder cover exhaust seat ring sealed structural representation;
Fig. 4 is the utility model intermediate plate sealed structural representation;
Fig. 5 is the utility model piston upper dead center position sealed structural representation;
Fig. 6 pulls out depressed structure schematic representation for the utility model piston lower dead point position.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As Fig. 1～twin-stage rotor-type compressor structure shown in Figure 6, compressor adopts first order exhaust cooling motor.In order to guarantee the reliable fuel feeding in shafting oil hole, to need importing to, the pressurized gas of compressor center leakage press the chamber from compression chamber and exhaust cavity.This function realizes by piston ring groove and intermediate plate cutting combination.As Fig. 1, piston 1 upper and lower end face open loop groove: upper-end surface piston ring groove 11, lower end surface piston ring groove 12, make a call to two above intercommunicating pores 13 between the upper and lower end face, intermediate plate 2 is provided with intermediate plate cutting 21.The gas of secondary cylinder compression by piston about in the of 1 two end faces when crankshaft direction leaks, be incorporated into the intakeport place by upper-end surface piston ring groove 11 and lower end surface piston ring groove 12 and intermediate plate cutting 21, secondary compression member intakeport all is in the pressure minimum state in whole process, so the gas that leaks is incorporated into air aspiration cavity by the cutting of intermediate plate, avoiding further leaking the middle back pressure environment of assurance bent axle fuel feeding to the bent axle oil supply hole.
Piston upper and lower end face annular groove and the design of intermediate plate cutting closure size are considered as follows: (1) piston upper-end surface annular groove 11 inside diameter D r1 are greater than upper cylinder cover annular groove external diameter and twice piston throw of eccentric X sum, avoid pressurized gas to be communicated with and do not reach exhaust effect with upper cylinder cover bent axle endoporus, and guarantee to go up the sealing of axle oil supply hole, as depicted in figs. 1 and 2.(2) piston upper-end surface annular groove outer diameter D r2 poor less than piston external diameter Dro and twice exhaust seat ring (Piece-D) distance L 1 guarantees the Piece-D position seals, as shown in figures 1 and 3.(3) piston lower surface annular groove inside diameter D r3 guarantees the sealing of intermediate plate fuel feeding place, as Fig. 1, Fig. 4 greater than intermediate plate inside diameter Ds i and twice piston throw of eccentric X sum.(4) piston lower surface annular groove outer diameter D r4 poor less than piston external diameter Dro and twice annular groove thickness L2 guarantees that piston ring groove has certain intensity, as Fig. 1, shown in Figure 4.(5) intermediate plate cutting length L is between piston lower surface annular groove external diameter track and piston inner diameter track, intermediate plate cutting gas passageway m, intermediate plate sealing n are as shown in the figure, guarantee that cutting also can be pulled out gas and be sealed in cutting of piston upper dead center position and piston inner diameter when the piston lower dead point position, as Fig. 1, Fig. 5, Fig. 6.(6) intermediate plate cutting position θ because intakeport pressure is lower, guarantees that gas unidirectional flows over against the intakeport position.
Claims (7)
1. can realize back pressure oil supply structure in the bipolar rotor-type compressor for one kind, it is characterized in that, this structure comprises piston ring groove, pulls out pore and intermediate plate cutting, described piston ring groove is arranged on the piston upper and lower end face in the compression chamber of the compressor second level, this piston upper and lower end face is communicated with by intercommunicating pore, and described intermediate plate cutting is arranged on the intermediate plate of compressor.
2. a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing according to claim 1 is characterized in that the upper-end surface piston ring groove internal diameter of described piston is greater than upper cylinder cover annular groove external diameter and twice piston throw of eccentric sum.
3. a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing according to claim 1 is characterized in that, the upper-end surface piston ring groove external diameter of described piston interdicts the poor of size less than the exhaust seat ring of piston external diameter and twice.
4. a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing according to claim 1 is characterized in that the lower end surface piston ring groove internal diameter of described piston is greater than intermediate plate internal diameter and twice piston throw of eccentric sum.
5. a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing according to claim 1 is characterized in that the lower end surface piston ring groove external diameter of described piston is poor less than piston external diameter and twice piston ring groove minimum thickness.
6. a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing according to claim 1 is characterized in that the length of described intermediate plate cutting is between piston lower surface piston ring groove external diameter track and piston inner diameter track.
7. a kind of back pressure oil supply structure in the bipolar rotor-type compressor of realizing according to claim 1 is characterized in that described intermediate plate cutting is over against the intakeport position of compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202864883U CN201588784U (en) | 2009-12-28 | 2009-12-28 | Structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202864883U CN201588784U (en) | 2009-12-28 | 2009-12-28 | Structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588784U true CN201588784U (en) | 2010-09-22 |
Family
ID=42748562
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202864883U Expired - Lifetime CN201588784U (en) | 2009-12-28 | 2009-12-28 | Structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588784U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757454A (en) * | 2018-06-05 | 2018-11-06 | 珠海格力电器股份有限公司 | Compressor pump body, compressor and air conditioner |
-
2009
- 2009-12-28 CN CN2009202864883U patent/CN201588784U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757454A (en) * | 2018-06-05 | 2018-11-06 | 珠海格力电器股份有限公司 | Compressor pump body, compressor and air conditioner |
| CN108757454B (en) * | 2018-06-05 | 2023-10-03 | 珠海格力电器股份有限公司 | Compressor pump body, compressor and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201771763U (en) | Rotary compressor | |
| CN109458323A (en) | A kind of complex piston ring for compressor | |
| CN201588784U (en) | Structure | |
| CN203098201U (en) | Oil-free lubrication compressor efficient cooling packing sealing device | |
| CN205805898U (en) | The fluid end of high pressure reciprocating pump | |
| CN204627939U (en) | The cylinder cap of diaphragm type compressor embeds cylinder body without oil distribution casing film header structure | |
| US11002263B2 (en) | Two-stage high-pressure pump with high sealing performance | |
| CN204827858U (en) | No oil piston | |
| CN204003451U (en) | A kind of screw-rod air compressor gas valve | |
| CN206942965U (en) | A kind of freezer compressor cylinder block | |
| CN201560838U (en) | Booster sealing structure | |
| CN114215726A (en) | Membrane head structure of diaphragm compressor | |
| CN208907372U (en) | A kind of sealing structure of turbocharger air end of booster | |
| CN203742684U (en) | Graphite sealing device of turbocharger for gasoline engine | |
| CN201672051U (en) | Gas-sealing piston ring and piston | |
| CN201078325Y (en) | Diaphragm compressor with new type gas cylinder seal structure | |
| CN206592222U (en) | A kind of use for diesel engine tracheae and sealing ring of cylinder cover | |
| CN203743794U (en) | Self-suction piston-type oil atomizer | |
| CN103452650A (en) | Shaft-end seal structure of turbine shaft of turbocharger | |
| CN211623644U (en) | Filling box structure of hydrogen compressor of hydrogenation station | |
| CN201588785U (en) | Low-voltage cavity oil supply structure capable of realizing rotor type compressor | |
| CN103758589A (en) | Graphite seal device for turbocharger for gasoline engine | |
| CN103867875A (en) | Self-suction piston type atomized lubricator | |
| CN203627153U (en) | Lubricating oil supply device for linear compressor | |
| CN202673630U (en) | Motor pressurization system |
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: 20100922 |