CN203023009U - Variable displacement compressor - Google Patents
Variable displacement compressor Download PDFInfo
- Publication number
- CN203023009U CN203023009U CN 201220694854 CN201220694854U CN203023009U CN 203023009 U CN203023009 U CN 203023009U CN 201220694854 CN201220694854 CN 201220694854 CN 201220694854 U CN201220694854 U CN 201220694854U CN 203023009 U CN203023009 U CN 203023009U
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- CN
- China
- Prior art keywords
- cavity
- variable displacement
- main shaft
- throttling
- compressor
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- 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 - Fee Related
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Abstract
The utility model aims to provide a variable displacement compressor which is provided with a throttling device capable of adjusting an inclined disk angle in an auxiliary mode. In order to achieve the purpose of the variable displacement compressor having the functions, the variable displacement compressor is provided with an air sucking cavity, an air discharging cavity and a crankshaft cavity, a main shaft and an inclined disk component sleeved on the main shaft are installed in a crankshaft cavity, the inclined disk component comprises a driving piece and an inclined disk which are mutually hinged, and a connecting channel between the air discharging cavity and the crankshaft cavity is formed in the main shaft. The variable displacement compressor is characterized in that the throttling device is arranged in the connecting channel and provided with throttling channels, the throttling device limits communicating area of the connecting channel to be at least communicating area of the throttling channel, and the communicating area is 0.1-1.6 mm<2>.
Description
Technical field
The utility model relates to the used for automobile air conditioning compressor, relates in particular to compressor with variable displacement.
Background technique
Notice of authorization number is in the Chinese patent specification of CN100464071C, conducting structure between a kind of compressor discharge chamber and crankshaft cavity is disclosed, as shown in Figure 1, some passage 22-26 etc. have been formed on cylinder body and main shaft 7, with the pressurized gas in exhaust cavity 17 and lubricated wet goods, guide to crankshaft cavity 6 by differential pressure action, changing the pressure of crankshaft cavity, and then reach the purpose at the inclination angle of swash plate 11.
And in variable compressor, mainly relying on control valve to regulate passage on main shaft, it is as just the assistant tool of pressure, and the angle of swash plate is played fine setting.There are the problems such as the compressor energy loss is large in the technology of this adjusting passage.
The model utility content
The purpose of this utility model is to provide a kind of compressor with variable displacement, and it has the throttling arrangement that the swash plate angle is played auxiliary adjustment.
For realizing the compressor with variable displacement of described purpose, have air aspiration cavity, exhaust cavity and crankshaft cavity, main shaft and the swash plate parts that are enclosed within on main shaft are housed in crankshaft cavity, the swash plate parts comprise mutually hinged actuator and swash plate; Form the connecting passage between exhaust cavity and crankshaft cavity on main shaft, be characterized in, be provided with a throttling arrangement in connecting passage, throttling arrangement has throttling passage, this throttling arrangement is restricted to the perforation area of this connecting passage the perforation area of this at least one throttling passage, and this perforation area is 0.1mm
2～1.6mm
2
Described compressor with variable displacement, its further characteristics be, this connecting passage comprises and is positioned at axial bore rear-end of spindle and that communicate with exhaust cavity, and the radial hole that connects this axial bore and crankshaft cavity.
Described compressor with variable displacement, its further characteristics be, this throttling arrangement also comprises filtrating equipment, and this filtrating equipment is arranged in the entrance of this connecting passage or connecting passage or is attached to the inlet side of this throttling passage.
Described compressor with variable displacement, its further characteristics be, this throttling arrangement comprises that entry end has the pipe of filtrating equipment, and the pore of this pipe consists of described throttling passage.
Described compressor with variable displacement, its further characteristics are that this throttling arrangement comprises cylinder or cylindrical shell, is formed with the breach that axial straight line extends or bending is extended on this cylinder or cylindrical shell, the described throttling passage of this axial gap formation.
Described compressor with variable displacement, its further characteristics be, this throttling arrangement comprises cylinder, and this cylinder is formed with axial aperture and radial hole, and axial aperture and radial hole communicate, and this axial aperture and radial hole consist of described throttling passage.
Described compressor with variable displacement, its further characteristics are that this throttling arrangement is arranged in the described axial bore of main shaft.
Described compressor with variable displacement, its further characteristics are that this throttling arrangement is arranged in the described radial hole of main shaft.
Described compressor with variable displacement, its further characteristics be, described radial hole radially runs through or do not run through main shaft main shaft.
Described compressor with variable displacement, its further characteristics are that this throttling arrangement also comprises filter screen, the shaft of this cylinder has recess, this filter screen is covered in this recess, and is positioned at the outside of this radial hole, and this recess connects the axial bore of throttling passage and main shaft.
A kind of compressor with variable displacement has air aspiration cavity, exhaust cavity and crankshaft cavity, and main shaft and the swash plate parts that are enclosed within on main shaft are housed in crankshaft cavity, and the swash plate parts comprise mutually hinged actuator and swash plate; Form the connecting passage between exhaust cavity and crankshaft cavity on main shaft, be characterized in, this connecting passage comprises and is positioned at axial bore rear-end of spindle and that communicate with exhaust cavity, and the radial hole that connects this axial bore and crankshaft cavity, and the perforation area of this radial hole is 0.1mm
2～1.6mm
2
The present application people finds in existing technology, the pressure of general crankshaft cavity raises, the swash plate angle reduces, channel cross-sectional area on main shaft is excessive, gas enters crankshaft cavity by this passage in a large number, and the speed of gas flow air aspiration cavity in crankshaft cavity also can increase, its as a result the gas of exhaust cavity enter quickly air aspiration cavity, cause the loss of compressor energy; The effect of control valve simultaneously reduces, and can't bring into play the control valve effect, according to default target control discharge capacity.And in the utility model, after adding throttling arrangement, make exhaust cavity to the gap of crankshaft cavity through throttling, air-flow slows down, the high-temperature gas of exhaust cavity has can leave heat in gas of time enough, can make like this gas temperature that enters in the chamber can be not too high, also reduce the leakage of exhaust cavity to crankshaft cavity simultaneously, improve the efficient of the compressor of the controlled type of discharge capacity.
Description of drawings
Fig. 1 is the schematic diagram of the compressor with variable displacement of prior art.
Fig. 2 is the schematic diagram of compressor with variable displacement in the utility model embodiment 1.
Fig. 3 is the schematic diagram of connecting passage in the utility model embodiment 1.
Fig. 4 is the schematic diagram of connecting passage in the utility model embodiment 2.
Fig. 5 A is the schematic elevational view of each distortion of throttling arrangement in the utility model embodiment 2.
Fig. 5 B is the schematic plan of each distortion of throttling arrangement in the utility model embodiment 2.
Fig. 6 is the schematic diagram of a distortion of radial hole in the utility model embodiment 2.
Fig. 7 is the schematic diagram of connecting passage in the utility model embodiment 3.
Fig. 8 A is the schematic diagram of connecting passage in the utility model embodiment 4.
Fig. 8 B is the schematic plan of throttling arrangement in the utility model embodiment 4.
Fig. 8 C is the schematic plan of throttling arrangement in the utility model embodiment 4.
Fig. 9 is the schematic diagram of connecting passage in the utility model embodiment 5.
Embodiment
Embodiment 1
As shown in Figure 2, the shell of displacement-variable swashplate compressor is to be assembled by front end housing 31, cylinder body 30 and bonnet 33, forms crankshaft cavity 34(Pc), air aspiration cavity 35 (Ps), exhaust cavity 36 (Pd) and a plurality of cylinder-bore 37.Cylinder body has for the center hole 38 that main shaft 40 is installed, and main shaft 40 coordinates with center hole 38 rotationally by bearing 39.Drive plate 41, swash plate 42 and planetary plate 44 are set on main shaft 40, during compressor operating, main shaft 40 rotates in crankshaft cavity 34, and drive dress thereon drive plate 41 and rotate simultaneously the end face of swash plate 42 and main shaft 40 one-tenth one inclination angles with the hinged swash plate 42 of drive plate 41.A plurality of pistons 43 are contained in respectively in each cylinder-bore 37, distribute ringwise and are hinged on around planetary plate 44, and in swash plate 42 rotation processes, driven plunger 43 is in the interior to-and-fro motion of cylinder-bore 37.Piston 43 sucks cylinder-bore 37 with refrigerant gas from air aspiration cavity 35 respectively, and drains into exhaust cavity 36 from cylinder-bore 37, thereby complete the compression to gas during towards the motion of top and bottom.
Mesopore (axial bore) 50 is offered in main shaft 40 rear ends, and the radial hole 51 that is connected with mesopore 50, and radial hole 51 can be perpendicular to mesopore 50, also can be slightly to angle of main shaft 40 front end deflection.Mesopore 50 and radial hole 51 have consisted of continuous connecting passage.Be provided with valve plate 45 between cylinder body 30 and bonnet 33, it is porose 46 that valve plate 45 is with, and cylinder axis hole 50 connects by hole 46 and exhaust cavity 36, thereby mesopore 50 and exhaust cavity 36 are connected.Radial hole 51 connects with crankshaft cavity 34.
As shown in Figure 3, in order to dwindle the cross-section area of connecting passage, to form gas throttling, in radial hole 51, a throttling arrangement 52 is set, comprises 2 copper pipes 59 in up and down and be installed in filter 60 between them.Filter 60 hollows communicate with the mesopore of copper pipe 59, and its end copper pipe 59 fixes.Gas enters copper pipe 59 after filtering through filter 60 from main shaft mesopore 50, then flows to crankshaft cavity.Interference fit between copper pipe 59 bases and radial hole 51., at High Rotation Speed throttling arrangement 52 is arranged on main shaft 40 due to main shaft, it also has oil return concurrently and gets rid of the effect of oil, makes crankshaft cavity obtain good lubricating.
In two copper pipes 59, the hole area sum is only for being about 0.1～1.6mm
2, 0.12～0.8mm preferably
2And the smallest cross-section area of connecting passage remaining part is 10～20mm
2, so throttling arrangement can obviously play throttling action.
Embodiment 2
As shown in Figure 4, in order to dwindle the cross-section area of connecting passage, to form gas throttling, in radial hole 51, a throttling arrangement 52 is set, its shell is cylinder 53, cylinder 53 surfaces are with axially extended breach 54, this breach 54 connects mesopore 50 and crankshaft cavity, and the periphery part of cylinder 53 can form interference fit with radial hole 51, thereby both are fixed.Gas in mesopore 50 will enter breach 54, then flow to crankshaft cavity.
Throttling passage is thinner, can result in blockage after having impurity to enter, and as shown in Figure 4, covers filter screen 55 in rear-end of spindle, and filter screen 55 is fixed on rear-end of spindle, so that impurity is repelled outside mesopore 50.
As shown in Figure 6, radial hole 51 also can be arranged to only extend to main shaft one side, thereby need not radial hole 51 is punched, and this situation throttling arrangement is only to a side output gas.
As shown in Figure 7, throttling arrangement 52 also can be located in mesopore 50.Throttling arrangement 52 can be also the various forms of the throttling arrangement shown in Fig. 3, Fig. 5 A, Fig. 8 A.
Embodiment 4
As shown in Fig. 8 A, 8B, 8C, filter screen 55 and throttling arrangement 52 are made one, facilitate the one assembling.The cylinder 53 two ends formation stepped part 56 of throttling arrangement 52, stepped part 56 and radial hole 51 interference fit, filter screen 55 is enclosed in the recessed position of periphery of throttling arrangement 52.
Embodiment 5
As shown in Figure 9, throttling arrangement also is formed directly in connecting passage.Adopt laser or minute diameter to bore cutter and directly process the radial hole 58 that diameter is 0.4～0.6mm on main shaft, be connected with hollow 50.This example structure is simpler, but because the main shaft surface is curved, and material is Chilled Hardened Steel, so deficiency is technology and equipment is had relatively high expectations.
Claims (10)
1. compressor with variable displacement, have air aspiration cavity, exhaust cavity and crankshaft cavity, and main shaft and the swash plate parts that are enclosed within on main shaft are housed in crankshaft cavity, and the swash plate parts comprise mutually hinged actuator and swash plate; Form the connecting passage between exhaust cavity and crankshaft cavity on main shaft, it is characterized in that, be provided with a throttling arrangement in connecting passage, throttling arrangement has throttling passage, this throttling arrangement is restricted to the perforation area of this connecting passage the perforation area of this at least one throttling passage, and this perforation area is 0.1mm
2～1.6mm
2
2. compressor with variable displacement as claimed in claim 1, is characterized in that, this connecting passage comprises and is positioned at axial bore rear-end of spindle and that communicate with exhaust cavity, and the radial hole that connects this axial bore and crankshaft cavity.
3. compressor with variable displacement as claimed in claim 1, is characterized in that, this throttling arrangement also comprises filtrating equipment, and this filtrating equipment is arranged in the entrance of this connecting passage or connecting passage or is attached to the inlet side of this throttling passage.
4. compressor with variable displacement as claimed in claim 1, is characterized in that, this throttling arrangement comprises that entry end has the pipe of filtrating equipment, and the pore of this pipe consists of described throttling passage.
5. compressor with variable displacement as claimed in claim 1, is characterized in that, this throttling arrangement comprises cylinder or cylindrical shell, is formed with the breach that axial straight line extends or bending is extended on this cylinder or cylindrical shell, and this axial gap consists of described throttling passage.
6. compressor with variable displacement as claimed in claim 1, is characterized in that, this throttling arrangement comprises cylinder, and this cylinder is formed with axial aperture and radial hole, and axial aperture and radial hole communicate, and this axial aperture and radial hole consist of described throttling passage.
7. compressor with variable displacement as claimed in claim 2, is characterized in that, this throttling arrangement is arranged in the described axial bore of main shaft.
8. compressor with variable displacement as claimed in claim 2, is characterized in that, this throttling arrangement is arranged in the described radial hole of main shaft.
9. compressor with variable displacement as claimed in claim 6, is characterized in that, this throttling arrangement also comprises filter screen, the shaft of this cylinder has recess, this filter screen is covered in this recess, and is positioned at the outside of this radial hole, and this recess connects the axial bore of throttling passage and main shaft.
10. compressor with variable displacement, have air aspiration cavity, exhaust cavity and crankshaft cavity, and main shaft and the swash plate parts that are enclosed within on main shaft are housed in crankshaft cavity, and the swash plate parts comprise mutually hinged actuator and swash plate; Form the connecting passage between exhaust cavity and crankshaft cavity on main shaft, it is characterized in that, this connecting passage comprises and is positioned at axial bore rear-end of spindle and that communicate with exhaust cavity, and the radial hole that connects this axial bore and crankshaft cavity, and the perforation area of this radial hole is 0.1mm
2～1.6mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694854 CN203023009U (en) | 2012-12-14 | 2012-12-14 | Variable displacement compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220694854 CN203023009U (en) | 2012-12-14 | 2012-12-14 | Variable displacement compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203023009U true CN203023009U (en) | 2013-06-26 |
Family
ID=48646998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220694854 Expired - Fee Related CN203023009U (en) | 2012-12-14 | 2012-12-14 | Variable displacement compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203023009U (en) |
-
2012
- 2012-12-14 CN CN 201220694854 patent/CN203023009U/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: 20130626 Termination date: 20181214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |