JPS55109710A - Hydraulic valve lifting apparatus - Google Patents
Hydraulic valve lifting apparatusInfo
- Publication number
- JPS55109710A JPS55109710A JP1753879A JP1753879A JPS55109710A JP S55109710 A JPS55109710 A JP S55109710A JP 1753879 A JP1753879 A JP 1753879A JP 1753879 A JP1753879 A JP 1753879A JP S55109710 A JPS55109710 A JP S55109710A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- oil
- plunger
- chamber
- intake
- 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.)
- Granted
Links
Abstract
PURPOSE: To lower the impact force acted when an intake valve or an exhaust valve comes into contact with its valve seat, by forming an oil storing brake chamber in a valve lifting means for varying the valve lift of intake valve or exhaust valve of an internal combustion engine.
CONSTITUTION: A lifter body 5 and a plunger 6 coupled with each other are fitted in a cylinder bore 8 in the housing 3 of a valve lifting means. In the plunger 6 and lifter body 5, there are formed respectively an oil supply chamber 14 and a hydraulic chamber 26, to which oil in an oil pan 41 is supplied via a pump 42 and an oil-pressure controlling means 43 for controlling the valve lift of intake or exhaust valve 25. Between the plunger 6 and bore 8, there is formed a brake chamber 10 which is communicated to an outside via check valve 36, so that a damping effect is afforeded to the plunger 6. Further, on the outside of the bore 8, there is formed an oil discharging port 32 having a check valve 30 and an on-off valve 40, so as to control the amount of oil in the chamber 26.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1753879A JPS55109710A (en) | 1979-02-16 | 1979-02-16 | Hydraulic valve lifting apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1753879A JPS55109710A (en) | 1979-02-16 | 1979-02-16 | Hydraulic valve lifting apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55109710A true JPS55109710A (en) | 1980-08-23 |
JPS618253B2 JPS618253B2 (en) | 1986-03-13 |
Family
ID=11946687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1753879A Granted JPS55109710A (en) | 1979-02-16 | 1979-02-16 | Hydraulic valve lifting apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55109710A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH058753Y2 (en) * | 1988-06-06 | 1993-03-04 | ||
JPH02110923U (en) * | 1989-02-20 | 1990-09-05 |
-
1979
- 1979-02-16 JP JP1753879A patent/JPS55109710A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS618253B2 (en) | 1986-03-13 |
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