CN2402838Y - Brake boosting vacuum pump for motor vehicle - Google Patents
Brake boosting vacuum pump for motor vehicle Download PDFInfo
- Publication number
- CN2402838Y CN2402838Y CN 99250240 CN99250240U CN2402838Y CN 2402838 Y CN2402838 Y CN 2402838Y CN 99250240 CN99250240 CN 99250240 CN 99250240 U CN99250240 U CN 99250240U CN 2402838 Y CN2402838 Y CN 2402838Y
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- CN
- China
- Prior art keywords
- pump
- vacuum
- oil
- motor vehicle
- end cap
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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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- Applications Or Details Of Rotary Compressors (AREA)
- Rotary Pumps (AREA)
Abstract
The utility model relates to a brake boosting vacuum pump for motor vehicles, which is composed of a pump body with a concave pump cavity, an end cover of the pump body cavity and a sliding vane rotor in the pump body cavity, wherein a pump casing which is composed of the pump body and the end cover is provided with an oil inlet connector, an oil return exhausting connector and a vacuum connector, a rotor shaft penetrates through a pump body bearing, and the outer end of the shaft is fixed with a gearwheel. The oil return exhausting connector is arranged at the gearwheel side, the oil inlet connector of pressure oil, an air inlet and a vacuum connector can all be arranged on the end cover, and the oil inlet connector of the pressure oil is arranged in a rotor bearing of the end cover. The utility model has the advantages of high vacuum pumping efficiency and long service life.
Description
The utility model has related to the vacuum pump of a kind of Motor Vehicle brake boost vacuum pump, particularly automobile, fork truck vacuum braking power assisting device.
Existing Motor Vehicle brake boost vacuum pump is made of the pump housing, pump housing chamber end cap, the endoceliac sliding-vane rotor of pump of being with the spill pump chamber.The vacuum automobile pump of the patent specification record of the patent No. 94229936.1 that announce December 20 nineteen ninety-five, the pump housing, pump housing chamber end cap, the endoceliac sliding-vane rotor of pump by band spill pump chamber constitutes equally.The pump housing and end cap constitute housing, and the pump housing has fuel inlet fitting, oil return exhaust joint, vacuum connect.Pump cover is made motor cover again and is used, and the axle of rotor passes the pump cover bearing, and the outer end of axle is connected with motor.Vacuum pump is by driven by motor, and by generator powered, generator drives by motor car engine motor again, and conversion efficiency is low, complex structure, and rate of fault is higher.Being provided with of fuel inlet fitting, oil return exhaust joint, vacuum connect is unreasonable, the seal oil skewness, and exhaust band oil also causes a large amount of losses of lubricant oil.
The purpose of this utility model provide a kind of between by motor drive, lubrication and seal Motor Vehicle brake boost vacuum pump preferably.
Vacuum pump of the present utility model, the pump housing, pump housing chamber end cap, the endoceliac sliding-vane rotor of pump by band spill pump chamber constitute, the pump case that the pump housing and end cap constitute has fuel inlet fitting, oil return exhaust joint, vacuum connect, it is characterized in that: the axle of rotor passes pump housing bearing, and the outer end of axle is fixed with the gear with the engine gearbox gear engagement.Vacuum pump is directly obtained power from motor like this, and power capacity conversion loss is few, efficient is high.The oil return exhaust joint of pump can be located at the side that gear is housed, and assurance can instead not arrived vacuum connect, and successfully be discharged to the gear-box oil sump from relief opening after being entered the lubricated sealing of pump chamber from fuel inlet fitting.Particularly pressure oil fuel inlet fitting and suction port and vacuum connect all are arranged on end cap, are easy for installation and maintenance, and main is that pressure oil is consistent with the direction of bleeding, the lubricated and sealing of the even distribution of oil in pump chamber of being more convenient for.When the oil inlet hole of pressure oil fuel inlet fitting is arranged on the end cap rotor bearing, pressure oil passes the end cap rotor bearing, oil can lubricate axle and bearing earlier, enter pump chamber lubricated and sealing blade and contact position thereof again, effectively utilized pressure oil, pressure oil enters more rationally even that pump chamber distributes by rotor bearing.
The utility model is asked with existing skill and is compared thus, and it is simple, in light weight to have a compact structure, the mechanical efficiency height; After pressure oil enters pump chamber, be evenly distributed, trend rationally can be lubricated each relative movement part effectively, and can seal well, makes that vacuumizing efficient improves long service life.
Accompanying drawing has been represented a kind of structural representation of the utility model diesel-oil vehicle brake boost vacuum pump.Further specify the utility model below in conjunction with the accompanying drawing example.
The brake boost vacuum pump of this diesel car is made of the pump housing 9, pump housing chamber end cap 10, the endoceliac sliding-vane rotor 8 of pump of being with the spill pump chamber, and the pump case that the pump housing 9 and end cap 10 constitute has fuel inlet fitting 14, oil return exhaust joint 13, vacuum connect 1.The axle 12 of rotor passes pump housing bearing, stretches out from a side of the pump housing, and the outer end of axle is fixedly connected with gear 7.After vacuum pump was installed to diesel car, gear 7 meshed with the driving gear of motor car engine gear-box, directly obtains power from motor.The opening of the oil return exhaust joint 13 of pump is located at the side that gear is housed, and the gas and the oil return of eliminating enter gear-box, and oil return then falls into the fuel tank below the gear-box, has reclaimed lubricant oil effectively.Pressure oil fuel inlet fitting 14 and vacuum connect 1 all are arranged on end cap.Vacuum connect 1 end has the one-way valve that is made of guide holder 4, spring 3, spool 2, prevents return-air.The oil inlet hole of pressure oil fuel inlet fitting directly passes end cap rotor bearing 11, is communicated with bearing bore.Corresponding rotor bearing or bearing have annular groove, are convenient to the distribution equably of lubricant oil.The lubricant oil that has pressure continuously passes the end cap rotor bearing and enters annular groove, and is distributed to equably in the pump chamber by the slit between axle and the bearing, lubricates blade 6 and pump chamber and rotor blade and rotor rollaway nest with canned rotor.Lubricant oil is discharged in the gear-box from the oil return exhaust joint with the gas of discharging at last and reclaims.Constituted the brake boost vacuum pump of mechanical efficiency height, lubrication and seal is good, evacuation rate is high diesel car.
Claims (5)
1, a kind of Motor Vehicle brake boost vacuum pump, the pump housing, pump housing chamber end cap, the endoceliac sliding-vane rotor of pump by band spill pump chamber constitute, the pump case that the pump housing and end cap constitute has fuel inlet fitting, oil return exhaust joint, vacuum connect, it is characterized in that: the axle of rotor passes pump housing bearing, and the outer end of axle is fixed with the gear with the engine gearbox gear engagement.
2, as the said Motor Vehicle brake boost of claim 1 vacuum pump, it is characterized in that: the oil return exhaust joint is located at the side that gear is housed.
3, as the said Motor Vehicle brake boost of claim 1 vacuum pump, it is characterized in that: pressure oil fuel inlet fitting and suction port and vacuum connect all are arranged on end cap.
4, as claim 1 or 2 or 3 said Motor Vehicle brake boost vacuum pumps, it is characterized in that: the oil inlet hole of pressure oil fuel inlet fitting is arranged on the end cap rotor bearing.
5, as the said Motor Vehicle brake boost of claim 4 vacuum pump, it is characterized in that: the oil inlet hole of pressure oil fuel inlet fitting passes the position of end cap rotor bearing, and corresponding rotor bearing or bearing have annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99250240 CN2402838Y (en) | 1999-11-06 | 1999-11-06 | Brake boosting vacuum pump for motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99250240 CN2402838Y (en) | 1999-11-06 | 1999-11-06 | Brake boosting vacuum pump for motor vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2402838Y true CN2402838Y (en) | 2000-10-25 |
Family
ID=34035007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99250240 Expired - Fee Related CN2402838Y (en) | 1999-11-06 | 1999-11-06 | Brake boosting vacuum pump for motor vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2402838Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421518B (en) * | 2006-04-10 | 2011-08-24 | 沃布科汽车（英国）有限公司 | Improved vacuum pump |
| CN102720585A (en) * | 2011-11-17 | 2012-10-10 | 东风朝阳柴油机有限责任公司 | Timing gear chamber wheel train of engine |
| CN104455099A (en) * | 2014-11-28 | 2015-03-25 | 宁波华盛汽车部件有限公司 | Oil chamber shell assembly |
| CN106050658A (en) * | 2012-05-21 | 2016-10-26 | 纳薄特斯克汽车零部件有限公司 | Vacuum pump |
| CN112065721A (en) * | 2020-09-07 | 2020-12-11 | 苏凤霞 | Vacuum pump |
-
1999
- 1999-11-06 CN CN 99250240 patent/CN2402838Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101421518B (en) * | 2006-04-10 | 2011-08-24 | 沃布科汽车（英国）有限公司 | Improved vacuum pump |
| CN102720585A (en) * | 2011-11-17 | 2012-10-10 | 东风朝阳柴油机有限责任公司 | Timing gear chamber wheel train of engine |
| CN106050658A (en) * | 2012-05-21 | 2016-10-26 | 纳薄特斯克汽车零部件有限公司 | Vacuum pump |
| US9841023B2 (en) | 2012-05-21 | 2017-12-12 | Nabtesco Automotive Corporation | Vacuum pump |
| CN104455099A (en) * | 2014-11-28 | 2015-03-25 | 宁波华盛汽车部件有限公司 | Oil chamber shell assembly |
| CN104455099B (en) * | 2014-11-28 | 2017-04-12 | 宁波华盛汽车部件有限公司 | Oil chamber shell assembly |
| CN112065721A (en) * | 2020-09-07 | 2020-12-11 | 苏凤霞 | Vacuum pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |