CN2199105Y - Pressurizing pump - Google Patents
Pressurizing pump Download PDFInfo
- Publication number
- CN2199105Y CN2199105Y CN 94220520 CN94220520U CN2199105Y CN 2199105 Y CN2199105 Y CN 2199105Y CN 94220520 CN94220520 CN 94220520 CN 94220520 U CN94220520 U CN 94220520U CN 2199105 Y CN2199105 Y CN 2199105Y
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- boost pump
- inlet
- cylinder
- 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 a pressurizing pump, comprising a reducing oil cylinder, a reducing piston, a release spring, an oil inlet and an oil outlet. A pressurizing valve and a one-way valve are arranged in an oil passage which is communicated with a major oil cylinder, and the oil inlet is provided with an oil inlet valve. The pressurizing pump has the advantages of simple structure, convenient processing and high braking sensitivity and can output the braking oil liquid whose oil pressure is higher than that of a brake master cylinder.
Description
The utility model relates to a kind of boost pump, belongs to the improvement to existing automobile boost pump.
At present, the boost pump that uses on the automobile generally comprises the pump housing, piston, choker relief valve, vacuum chamber etc., and its weak point is complex structure.
Task of the present utility model is to provide a kind of simple in structure, boost pump of being convenient to process and can provide higher braking oil pressure.
The utility model comprises the reducing oil cylinder, different diameter piston, pull back spring, into and out of hydraulic fluid port, it is characterized in that with oil duct that large tank communicates in be provided with pressure charging valve and check valve, be provided with inlet valve at oil inlet.
Above-mentioned boost pump is characterized by at oil outlet and sets out fuel tap.
Above-mentioned boost pump is characterized by at check valve one end and is provided with air bleed screw.
Above-mentioned boost pump is characterized by the oil duct that communicates with large tank and is provided with the technology air bleed screw.
The utlity model has reducing oil cylinder and different diameter piston,, can provide higher braking oil pressure at the braking initial stage.Because of the vacuum chamber that defaulted, have simple in structure, be convenient to advantage such as manufacturing.In addition, the air bleed screw air in the brake piping of can draining, thus improve sensitivity.
Below in conjunction with accompanying drawing the utility model is described in detail.
Fig. 1 is a structural representation of the present utility model.
With reference to Fig. 1, the utility model comprises reducing oil cylinder (11), different diameter piston (9), pull back spring (7), oil inlet (a), oil outlet (b) and oil duct (c, d), reducing oil cylinder (11) is made up of large tank (10) and small oil tank (8), with oil duct (c) that large tank (10) communicates on be provided with technology air bleed screw (4), be provided with pressure charging valve (1) and check valve (2) in the oil duct (C), check valve (2) other end is provided with air bleed screw (3); Oil inlet (a) is provided with inlet valve (5), and the oil outlet (b) of small oil tank (8) is provided with delivery valve (6).
Glancing impact, the oil of master brake cylinder is delivered to brake wheel cylinder through oil inlet (a), inlet valve (5), small oil tank (8), oil outlet (b) and delivery valve (6) and is realized braking, and oil pressure raises in brake wheel cylinder and the small oil tank, thereby closes inlet valve (5).The oil of master brake cylinder enters large tank (10) through oil inlet (a), oil duct (C), pressure charging valve (1), oil duct (d), oil pressure promotes different diameter piston (9) and moves to right, oil in the compression small oil tank (8) makes it to enter brake wheel cylinder through oil outlet (b), delivery valve (6), higher braking oil pressure is provided, realizes booster brake.
During brake off, pull back spring (7) moves to left different diameter piston (9), and the oil in the large tank (10) flows back to master brake cylinder through check valve (2), oil duct (C).When different diameter piston (9) moved to left to end position, inlet valve (5) was opened, and surplus oil liquid flows back to master brake cylinder.
Air bleed screw (3) and technology air bleed screw (4) can bleed off the air in the brake piping, have guaranteed sensitivity.
Claims (4)
1, a kind of boost pump comprises the reducing oil cylinder, different diameter piston, pull back spring, into and out of hydraulic fluid port, it is characterized by with oil duct that large tank communicates in be provided with pressure charging valve and check valve, be provided with inlet valve at oil inlet.
2, boost pump as claimed in claim 1 is characterized by at oil outlet and sets out fuel tap.
3, boost pump as claimed in claim 1 or 2 is characterized by at check valve one end air bleed screw is set.
4, boost pump as claimed in claim 3 is characterized by the oil duct that communicates with large tank and is provided with the technology air bleed screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94220520 CN2199105Y (en) | 1994-09-05 | 1994-09-05 | Pressurizing pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94220520 CN2199105Y (en) | 1994-09-05 | 1994-09-05 | Pressurizing pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2199105Y true CN2199105Y (en) | 1995-05-31 |
Family
ID=33835100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94220520 Expired - Fee Related CN2199105Y (en) | 1994-09-05 | 1994-09-05 | Pressurizing pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2199105Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125741C (en) * | 1996-09-01 | 2003-10-29 | 李华新 | High pressure anti-blocking automotive hydraulic brake assistor pump |
| WO2006114049A1 (en) * | 2005-04-25 | 2006-11-02 | Yangdong He | A boost valve for a concrete transfer pump lubricating system |
| CN108425821A (en) * | 2018-05-18 | 2018-08-21 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
| CN108716464A (en) * | 2018-05-18 | 2018-10-30 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
| CN108730144A (en) * | 2018-05-18 | 2018-11-02 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
-
1994
- 1994-09-05 CN CN 94220520 patent/CN2199105Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1125741C (en) * | 1996-09-01 | 2003-10-29 | 李华新 | High pressure anti-blocking automotive hydraulic brake assistor pump |
| WO2006114049A1 (en) * | 2005-04-25 | 2006-11-02 | Yangdong He | A boost valve for a concrete transfer pump lubricating system |
| CN108425821A (en) * | 2018-05-18 | 2018-08-21 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
| CN108716464A (en) * | 2018-05-18 | 2018-10-30 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
| CN108730144A (en) * | 2018-05-18 | 2018-11-02 | 宁波真格液压科技有限公司 | A kind of hydraulic booster pump |
| CN108716464B (en) * | 2018-05-18 | 2020-05-12 | 泗阳广鑫机电制造有限公司 | Hydraulic booster pump |
| CN108730144B (en) * | 2018-05-18 | 2020-08-28 | 台州市鑫屏机电有限公司 | Hydraulic booster 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 |