CN102927006A - Swing piston type electric vacuum pump - Google Patents
Swing piston type electric vacuum pump Download PDFInfo
- Publication number
- CN102927006A CN102927006A CN2012102484931A CN201210248493A CN102927006A CN 102927006 A CN102927006 A CN 102927006A CN 2012102484931 A CN2012102484931 A CN 2012102484931A CN 201210248493 A CN201210248493 A CN 201210248493A CN 102927006 A CN102927006 A CN 102927006A
- Authority
- CN
- China
- Prior art keywords
- piston
- vacuum pump
- type electric
- electric vacuum
- piston type
- 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.)
- Pending
Links
Images
Abstract
The present invention relates to a vacuum pump for vehicles, particularly to a novel swing piston type electric vacuum pump, which comprises a motor, a pump body, a motor shaft, eccentric wheels, eccentric shafts, piston bodies, piston rings and bearings, and is characterized in that the novel swing piston type electric vacuum pump further comprises rubber support rings, wherein the rubber support ring is arranged between the piston body and the piston ring, and the outer edge of the rubber support ring is a sphere surface structure. The novel swing piston type electric vacuum pump has characteristics of simple and reasonable structure, good sealing performance and effectively improved low temperature performance so as to meet use environments required by vehicles.
Description
Technical field
The present invention relates to a kind of vehicle vacuum pump, specifically a kind of Novel swing piston type electric vacuum pump.
Background technique
Automobile brake booster uses vacuum as its work energy widely, provides vacuum source by motor or vacuum pump (mechanical type or electrodynamic type) to it generally speaking, and present vehicle vacuum pump is vane pump or reciprocating pump basically.
Wave piston structure and on market, existed for many years, have compact structure, reliable performance, the advantage such as with low cost; Piston also carries out the swing of several angle when moving back and forth; Be arranged in the flexible plunger ring on the piston, when piston swings, keep the sealing of piston.
Traditional to wave between its piston of piston structure and the cylinder be Spielpassung, and the sealing height of piston depends on the flexibility of piston ring; And the flexible at low temperatures decline of the piston ring that plastics are made causes the sealability of piston undesired, thereby affects pump performance.
In the development process of Vehicular electric vacuum pump, traditional swing piston type vacuum pump is proved to be in test the Environmental Conditions that is not suitable for automobile, particularly vacuum pump and descends in low temperature environment lower seal performance, can't satisfy the usage requirement of automobile.
Summary of the invention
The objective of the invention is to provide a kind of simple and reasonable, good seal performance can be improved the cryogenic property of vacuum pump effectively, thereby satisfies the swing piston type electric vacuum pump of the desired Environmental Conditions of automobile.
The object of the present invention is achieved like this, this vacuum pump comprises motor, the pump housing, motor shaft, eccentric wheel, eccentric shaft, piston only, piston ring and bearing, it is characterized in that: it also comprises the rubber ring, described rubber ring is arranged between piston only and the piston ring, and the outer rim of rubber ring is spheric structure.
The present invention has the following advantages and good effect:
1, the present invention improves traditional piston structure that waves, between the piston only of hard and piston ring, increased a rubber ring, the support ring outer rim adopts spherical (sphere) structure, form slight interference fit between piston and the cylinder, enable to adapt to better the Environmental Conditions of automobile.
2, because the rubber ring outer rim of setting up between hard piston only of the present invention and the piston ring is sphere, therefore when piston swings, it is constant that the magnitude of interference of piston keeps, thereby guaranteed lower driving torque, effectively improve the cryogenic property of vacuum pump, thereby satisfied the desired Environmental Conditions of automobile.
Description of drawings
Fig. 1 is swing piston type electric vacuum pump overall structure schematic diagram.
Fig. 2 is piston only part-structure enlarged diagram of the present invention.
Embodiment
Shown in accompanying drawing 1,2: this vacuum pump comprises motor 1, be arranged on the pump housing 2, motor shaft 3 below the motor 1, be arranged on the eccentric wheel 4 on the motor shaft, be arranged on the eccentric shaft 5 on the eccentric wheel 4, be sleeved on two piston onlies 6 on the eccentric shaft 5 by bearing 9, the piston ring 7 that arranges on each piston only 6, it is characterized in that it also comprises rubber ring 8, described rubber ring 8 is arranged between each piston only 6 and the piston ring 7, and the outer rim of rubber ring 8 is spheric structure.
Claims (1)
1. swing piston type electric vacuum pump, this vacuum pump comprises motor (1), the pump housing (2), motor shaft (3), eccentric wheel (4), eccentric shaft (5), piston only (6), piston ring (7) and bearing (9), it is characterized in that: it also comprises rubber ring (8), described rubber ring (8) is arranged between piston only (6) and the piston ring (7), and the outer rim of rubber ring (8) is spheric structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102484931A CN102927006A (en) | 2012-07-18 | 2012-07-18 | Swing piston type electric vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102484931A CN102927006A (en) | 2012-07-18 | 2012-07-18 | Swing piston type electric vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927006A true CN102927006A (en) | 2013-02-13 |
Family
ID=47641901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102484931A Pending CN102927006A (en) | 2012-07-18 | 2012-07-18 | Swing piston type electric vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927006A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2067713A (en) * | 1980-01-23 | 1981-07-30 | Pierburg Gmbh & Co Kg | Non-metallic sealing ring |
| CN2218842Y (en) * | 1994-11-29 | 1996-01-31 | 张志威 | Reciprocating oil-free vacuum pump |
| CN2753900Y (en) * | 2004-12-16 | 2006-01-25 | 杨明海 | Cylinder piston with high temperature resistant rubber collar |
| EP1801416A1 (en) * | 2005-12-22 | 2007-06-27 | WABCO GmbH | Reciprocating piston machine |
| CN101943152A (en) * | 2009-07-02 | 2011-01-12 | 美克司株式会社 | Multistage compressor and oscillating-piston |
| CN201721438U (en) * | 2010-06-25 | 2011-01-26 | 宁波拓普制动系统有限公司 | Electronic vacuum pump |
| CN102094776A (en) * | 2009-12-09 | 2011-06-15 | 上海汽车制动系统有限公司 | Oppositely arranged swing piston type vacuum pump used for automobiles |
| CN202756245U (en) * | 2012-07-18 | 2013-02-27 | 上海旭岛汽车零部件有限公司 | Sway piston type electric vacuum pump |
-
2012
- 2012-07-18 CN CN2012102484931A patent/CN102927006A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2067713A (en) * | 1980-01-23 | 1981-07-30 | Pierburg Gmbh & Co Kg | Non-metallic sealing ring |
| CN2218842Y (en) * | 1994-11-29 | 1996-01-31 | 张志威 | Reciprocating oil-free vacuum pump |
| CN2753900Y (en) * | 2004-12-16 | 2006-01-25 | 杨明海 | Cylinder piston with high temperature resistant rubber collar |
| EP1801416A1 (en) * | 2005-12-22 | 2007-06-27 | WABCO GmbH | Reciprocating piston machine |
| CN101943152A (en) * | 2009-07-02 | 2011-01-12 | 美克司株式会社 | Multistage compressor and oscillating-piston |
| CN102094776A (en) * | 2009-12-09 | 2011-06-15 | 上海汽车制动系统有限公司 | Oppositely arranged swing piston type vacuum pump used for automobiles |
| CN201721438U (en) * | 2010-06-25 | 2011-01-26 | 宁波拓普制动系统有限公司 | Electronic vacuum pump |
| CN202756245U (en) * | 2012-07-18 | 2013-02-27 | 上海旭岛汽车零部件有限公司 | Sway piston type electric vacuum pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104723815A (en) | Amphibious vehicle | |
| CN202756245U (en) | Sway piston type electric vacuum pump | |
| CN202768398U (en) | Swing piston-type electric vacuum pump | |
| CN203098788U (en) | Differential mechanism anti-slipping gasket | |
| CN201090741Y (en) | Self-tightening type oil seal | |
| CN102927006A (en) | Swing piston type electric vacuum pump | |
| CN102927007A (en) | Swing piston type electrical vacuum pump | |
| CN204004061U (en) | A kind of Pneumatic friction type fan clutch | |
| CN103216464A (en) | Desulphurization pump | |
| CN209164024U (en) | A kind of piston swinging type electric vacuum pump | |
| CN202811480U (en) | Single mechanical seal device for centrifugal pump | |
| CN201891838U (en) | Positive-installed mechanical seal device | |
| CN201723699U (en) | Novel sealing ring | |
| CN205800796U (en) | A kind of in-between car power transmission shaft intermediate support assembly | |
| CN203730766U (en) | Automotive belt wheel bearing seal ring | |
| CN201992070U (en) | Combined shaft sleeve oil seal | |
| CN201953506U (en) | One-piece crankshaft rear oil seal | |
| CN201386744Y (en) | Shaft-connection-shaft self-gear water pump bearing | |
| CN204082548U (en) | A kind of vacuum pump rotor driving mechanism without leakage of oil, low noise | |
| CN202746145U (en) | Air compressor | |
| CN203023401U (en) | Traveling speed reducer for construction machinery | |
| CN202579211U (en) | Washer pump used in car | |
| CN216200511U (en) | Positive and negative rotation transmission shaft oil seal of electric drive system | |
| CN202299813U (en) | Automotive hinge | |
| CN202360692U (en) | Novel anti-drop tension wheel bearing for automobile engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |