JPS5758542A - Oil-hydraulic pump - Google Patents
Oil-hydraulic pumpInfo
- Publication number
- JPS5758542A JPS5758542A JP13331480A JP13331480A JPS5758542A JP S5758542 A JPS5758542 A JP S5758542A JP 13331480 A JP13331480 A JP 13331480A JP 13331480 A JP13331480 A JP 13331480A JP S5758542 A JPS5758542 A JP S5758542A
- Authority
- JP
- Japan
- Prior art keywords
- tappet
- plunger
- orifice
- concave
- oil sump
- 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)
Abstract
PURPOSE: To eliminate the tappet sound from an unloader pump by excavating an oil sump concave in the contact surface of a tapet plunger and installing an orifice to put this concave in communication to the outside.
CONSTITUTION: A cam 65 reciprocates a tappet 78, and a plunger 79 is pressed by the tappet 78 and, at the same time, pushed back by a spring 82 to generate oil pressure in a pump chamber 76. An oil sump concave 67 is formed in the contact surfaces of the tappet 78 and plunger 79 between, and put in communication with the pump chamber 76 through an orifice-shaped passage 68. Even when high pressure is generated in the pump and the plunger 79 can not return fully, that will cause the tappet 78 to beat the plunger 79, the action of the oil sump cancave 67 and orifice-shaped passage 68 will absorb shock of beat and thereby lessen the tappet sound.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13331480A JPS5758542A (en) | 1980-09-25 | 1980-09-25 | Oil-hydraulic pump |
GB8114274A GB2078868B (en) | 1980-05-15 | 1981-05-11 | Hydraulic pump |
DE3152591A DE3152591C2 (en) | 1980-05-15 | 1981-05-13 | |
US06/263,347 US4456310A (en) | 1980-05-15 | 1981-05-13 | Hydraulic pump and anti-skid brake system |
DE19813119064 DE3119064A1 (en) | 1980-05-15 | 1981-05-13 | HYDRAULIC PUMP |
GB08232197A GB2109076B (en) | 1980-05-15 | 1982-11-11 | Motorcycle anti-skid brake systems |
GB08232196A GB2109075B (en) | 1980-05-15 | 1982-11-11 | Vehicle 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 |
---|---|---|---|
JP13331480A JPS5758542A (en) | 1980-09-25 | 1980-09-25 | Oil-hydraulic pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5758542A true JPS5758542A (en) | 1982-04-08 |
Family
ID=15101778
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13331480A Pending JPS5758542A (en) | 1980-05-15 | 1980-09-25 | Oil-hydraulic pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5758542A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6235134A (en) * | 1985-08-05 | 1987-02-16 | Nissan Motor Co Ltd | Supporting structure for flexible flywheel |
JPS62141335A (en) * | 1985-12-14 | 1987-06-24 | Atsugi Motor Parts Co Ltd | Flywheel for internal combustion engine |
JPS6392850U (en) * | 1986-12-08 | 1988-06-15 | ||
JPH02140056U (en) * | 1989-04-26 | 1990-11-22 | ||
US5253740A (en) * | 1990-09-10 | 1993-10-19 | Atsugi Unisia Corp. | Automotive power train with annular elastic body for reducing vibrations of flywheel assembly |
US5465635A (en) * | 1989-02-28 | 1995-11-14 | Atsugi Unisia Corporation | Crankshaft assembly for internal combustion engine |
-
1980
- 1980-09-25 JP JP13331480A patent/JPS5758542A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6235134A (en) * | 1985-08-05 | 1987-02-16 | Nissan Motor Co Ltd | Supporting structure for flexible flywheel |
JPS62141335A (en) * | 1985-12-14 | 1987-06-24 | Atsugi Motor Parts Co Ltd | Flywheel for internal combustion engine |
JPS6392850U (en) * | 1986-12-08 | 1988-06-15 | ||
US5465635A (en) * | 1989-02-28 | 1995-11-14 | Atsugi Unisia Corporation | Crankshaft assembly for internal combustion engine |
USRE39487E1 (en) * | 1989-02-28 | 2007-02-13 | Valeo Unisia Transmission Corporation | Flywheel assembly for internal combustion engine |
JPH02140056U (en) * | 1989-04-26 | 1990-11-22 | ||
US5253740A (en) * | 1990-09-10 | 1993-10-19 | Atsugi Unisia Corp. | Automotive power train with annular elastic body for reducing vibrations of flywheel assembly |
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