CN203063935U - Exhaust pipe of electric vacuum pump - Google Patents
Exhaust pipe of electric vacuum pump Download PDFInfo
- Publication number
- CN203063935U CN203063935U CN 201220712372 CN201220712372U CN203063935U CN 203063935 U CN203063935 U CN 203063935U CN 201220712372 CN201220712372 CN 201220712372 CN 201220712372 U CN201220712372 U CN 201220712372U CN 203063935 U CN203063935 U CN 203063935U
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- CN
- China
- Prior art keywords
- pipe
- vacuum pump
- electric vacuum
- exhausr port
- exhaust
- 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 - Fee Related
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- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
The utility model relates to an exhaust pipe of an electric vacuum pump, wherein the exhaust pipe comprises a plurality of bent pipes, a transverse pipe, a straight pipe, a first exhaust opening and a second exhaust opening, and the second exhaust opening is fixed on a car body. One end of the first exhaust opening is connected with an air outlet of the electric vacuum pump, and the other end of the first exhaust opening is connected with one end of the transverse pipe through a bent pipe. The other end of the transverse pipe is connected with one end of the straight pipe through a bent pipe. The other end of the straight pipe is connected with the second exhaust opening through one bent pipe. According to the exhaust pipe, the distance between the second exhaust opening and the ground is larger than 600mm, the situation that ponding will not be sucked back into the exhaust pipe when a car passes a road surface with the ponding can be ensured, so that the electric vacuum pump is protected, and the problems that the electric vacuum pump can be easily damaged after the ponding enters the car, a vacuum source cannot be supplied continuously, so that vacuum servo does not exist when braking is conducted, a brake pedal is too hard, and a braking distance is long can be solved.
Description
Technical field
The utility model relates to a kind of freeing pipe, relates in particular to a kind of freeing pipe for the electric vacuum pump on the automobile turbo-charging.
Background technology
TC engine has become the indispensable part of automobile power assembly, does not have normally aspirated engine stable but TC engine offers the vacuum source of vacuum booster, adopts electric vacuum pump to address the above problem as secondary vacuum source at present.Because behind the Motorized vacuum pump work, there is difference of pressure between work chamber and the air extractor duct, during vehicle process ponding road surface, difference of pressure can make water fall in the drawing pump, damage easily behind the Motorized vacuum pump water inlet, can not continue to provide vacuum source, not have vacuum servo when causing braking and cause brake pedal really up to the mark, problems such as stopping distance length.Therefore, the layout height that requires pump is greater than 600mm with the gap on ground, but limited because of the machinery space space, the height of existing vacuum pump only has 460mm can't satisfy requirement for height.
Chinese patent notification number CN 202348681 U, July 25 2012 day for announcing, name is called a kind of exhaust pipe structure of sliding vane rotary vacuum pump, comprise the straight tube with first outlet and second outlet, one end is drawn and is communicated with straight tube inner chamber and the other end bend identical with second Way out from described straight tube, one end is connected the retaining oil hush pipe of first outlet of straight tube, and second outlet of straight tube bottom is provided with sluicing valve.Its weak point is that the height of vacuum pump is spent low and easy suck-back water.
The utility model content
The purpose of this utility model is to provide a kind of electric vacuum pump freeing pipe for the height that solves existing vacuum pump spends the defective of low and easy suck-back water.
To achieve these goals, the utility model is by the following technical solutions:
A kind of electric vacuum pump freeing pipe, freeing pipe comprises some bend pipes, a transverse tube, a upwardly extending straight tube, first exhausr port and is fixed on second exhausr port on the vehicle body, first exhausr port, one end is connected with the air extractor duct of electric vacuum pump, the other end with link to each other with an end of transverse tube by bend pipe, the other end of transverse tube links to each other with an end of straight tube by bend pipe, and the other end of straight tube links to each other with second exhausr port by a bend pipe.In the technical program; first exhausr port, one end is connected with the air extractor duct of electric vacuum pump; the other end with link to each other with an end of transverse tube by bend pipe; the other end of transverse tube links to each other with an end of straight tube by bend pipe; the other end of straight tube links to each other with second exhausr port by a bend pipe; thereby make second exhausr port distance overhead greater than 600mm; when guaranteeing vehicle through the ponding road surface; ponding is not gone into freeing pipe by suck-back; the protection electric vacuum pump; avoid because damaging easily behind the Motorized vacuum pump water inlet; can not continue to provide vacuum source, not have vacuum servo when causing braking and cause brake pedal really up to the mark, problems such as stopping distance length.
As preferably, transverse tube place straight line is vertical with the straight line at straight tube place.
As preferably, the bend pipe between second exhausr port and the straight tube is U-shaped pipe.
The beneficial effects of the utility model are; the utility model makes second exhausr port distance overhead greater than 600mm; when guaranteeing vehicle through the ponding road surface; ponding is not gone into freeing pipe by suck-back; the protection electric vacuum pump is avoided can not continuing to provide vacuum source because damaging easily behind the Motorized vacuum pump water inlet; do not have vacuum servo when causing braking and cause brake pedal really up to the mark, problems such as stopping distance length.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure, 1, freeing pipe; 2, first exhausr port; 3, second exhausr port; 4, transverse tube; 5, straight tube.
The specific embodiment
Below in conjunction with specific embodiment and accompanying drawing, the utility model is further explained:
With reference to Fig. 1, a kind of electric vacuum pump freeing pipe, freeing pipe 1 comprises two bend pipes, a transverse tube 4, a upwardly extending straight tube 5, a U-shaped pipe, first exhausr port 2 and second exhausr port 3 that is fixed on the vehicle body, first exhausr port, 2 one ends are connected with the air extractor duct of electric vacuum pump, the other end with link to each other with an end of transverse tube 4 by bend pipe, the other end of transverse tube 4 links to each other with an end of straight tube 5 by bend pipe, and the other end of straight tube 5 links to each other with second exhausr port 3 by a U-shaped pipe.Transverse tube 4 place straight lines are vertical with the straight line at straight tube 5 places.
First exhausr port, one end is connected with the air extractor duct of electric vacuum pump; the other end with link to each other with an end of transverse tube by bend pipe; the other end of transverse tube links to each other with an end of straight tube by bend pipe; the other end of straight tube links to each other with second exhausr port by a bend pipe; thereby make second exhausr port distance overhead greater than 600mm; when guaranteeing vehicle through the ponding road surface; ponding is not gone into freeing pipe by suck-back; the protection electric vacuum pump; avoid because damaging easily behind the Motorized vacuum pump water inlet; can not continue to provide vacuum source; do not have vacuum servo when causing braking and cause brake pedal really up to the mark, problems such as stopping distance length.
Claims (3)
1. electric vacuum pump freeing pipe, it is characterized in that, freeing pipe (1) comprises some bend pipes, a transverse tube (4), a upwardly extending straight tube (5), first exhausr port (2) and is fixed on second exhausr port (3) on the vehicle body, first exhausr port (2) one ends are connected with the air extractor duct of electric vacuum pump, the other end with link to each other by the end of bend pipe with transverse tube (4), the other end of transverse tube (4) links to each other by the end of bend pipe with straight tube (5), and the other end of straight tube (5) links to each other with second exhausr port (3) by a bend pipe.
2. a kind of electric vacuum pump freeing pipe according to claim 1 is characterized in that, transverse tube (4) place straight line is vertical with the straight line at straight tube (5) place.
3. a kind of electric vacuum pump freeing pipe according to claim 1 is characterized in that, the bend pipe between second exhausr port (3) and the straight tube (5) is U-shaped pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712372 CN203063935U (en) | 2012-12-20 | 2012-12-20 | Exhaust pipe of electric vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220712372 CN203063935U (en) | 2012-12-20 | 2012-12-20 | Exhaust pipe of electric vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203063935U true CN203063935U (en) | 2013-07-17 |
Family
ID=48762753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220712372 Expired - Fee Related CN203063935U (en) | 2012-12-20 | 2012-12-20 | Exhaust pipe of electric vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203063935U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3080817A1 (en) * | 2018-05-07 | 2019-11-08 | Renault S.A.S | BRAKE SYSTEM OF A VEHICLE COMPRISING A VACUUM PUMP AND A BREATHER |
-
2012
- 2012-12-20 CN CN 201220712372 patent/CN203063935U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3080817A1 (en) * | 2018-05-07 | 2019-11-08 | Renault S.A.S | BRAKE SYSTEM OF A VEHICLE COMPRISING A VACUUM PUMP AND A BREATHER |
| WO2019214993A1 (en) * | 2018-05-07 | 2019-11-14 | Renault S.A.S | Braking system of a vehicle comprising a vacuum pump and a breather |
| CN112166057A (en) * | 2018-05-07 | 2021-01-01 | 雷诺股份公司 | Brake system for a vehicle comprising a vacuum pump and a venting device |
| CN112166057B (en) * | 2018-05-07 | 2023-07-04 | 雷诺股份公司 | Brake system for a vehicle comprising a vacuum pump and a venting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20201220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |