JPS56162287A - Oil hydraulic pump - Google Patents
Oil hydraulic pumpInfo
- Publication number
- JPS56162287A JPS56162287A JP6453980A JP6453980A JPS56162287A JP S56162287 A JPS56162287 A JP S56162287A JP 6453980 A JP6453980 A JP 6453980A JP 6453980 A JP6453980 A JP 6453980A JP S56162287 A JPS56162287 A JP S56162287A
- Authority
- JP
- Japan
- Prior art keywords
- plunger
- pump
- tappet
- chamber
- oil pressure
- 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
Landscapes
- Regulating Braking Force (AREA)
- Reciprocating Pumps (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
Abstract
PURPOSE: To reduce the prime mover load by constituting an oil hydraulic pump so that when the oil pressure in a pressure accumulator reaches a given value, the oil pressure in a pump chamber also shows a similar value, and the pushing-up force of said oil pressure for a plunger balances with a spring, keeping the plunger in the vicinity of the upper limit by a tappet.
CONSTITUTION: Formed in a pump main body 70 are a spring chamber 75 housing a spring 82 which applies a given spring force to a plunger 79 slidably passed through the partition wall between a pump chamber 76 communicating with an oil tank 30 and a pressure accumulator 31 through a suction valve 86 and a discharge valve 88, toward the side of a tappet 78 which has a diameter smaller than the plunger 79 and is driven by a driving member 65, and an actuating chamber 77 housing driving members such as the pump driving shaft 65 and the like. In addition, the tappet 78 is slidably passed through the partition wall between the pump chamber 76 and the actuating chamber 77 and separatably contacted with the plunger 79. Thereby, the oil pressure in the pressure accumulator 31 reaches a given value, the oil pressure in the pump chamber 76 permits the plunger 79 to be kept in the vicinity of the upward limit by the tappet 78. Accordingly, the prime mover load connecting with the driving shaft 65 can be largely reduced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6453980A JPS56162287A (en) | 1980-05-15 | 1980-05-15 | Oil hydraulic pump |
GB8114274A GB2078868B (en) | 1980-05-15 | 1981-05-11 | Hydraulic pump |
US06/263,347 US4456310A (en) | 1980-05-15 | 1981-05-13 | Hydraulic pump and anti-skid brake system |
DE3152591A DE3152591C2 (en) | 1980-05-15 | 1981-05-13 | |
DE19813119064 DE3119064A1 (en) | 1980-05-15 | 1981-05-13 | HYDRAULIC PUMP |
GB08232196A GB2109075B (en) | 1980-05-15 | 1982-11-11 | Vehicle anti-skid brake systems |
GB08232197A GB2109076B (en) | 1980-05-15 | 1982-11-11 | Motorcycle anti-skid brake systems |
GB08407343A GB2143917B (en) | 1980-05-15 | 1984-03-21 | Motorcycle anti-lock brake systems |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6453980A JPS56162287A (en) | 1980-05-15 | 1980-05-15 | Oil hydraulic pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56162287A true JPS56162287A (en) | 1981-12-14 |
Family
ID=13261121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6453980A Pending JPS56162287A (en) | 1980-05-15 | 1980-05-15 | Oil hydraulic pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56162287A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6419079U (en) * | 1987-07-27 | 1989-01-31 |
-
1980
- 1980-05-15 JP JP6453980A patent/JPS56162287A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6419079U (en) * | 1987-07-27 | 1989-01-31 |
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