JPS57163106A - Oil tappet - Google Patents
Oil tappetInfo
- Publication number
- JPS57163106A JPS57163106A JP4794081A JP4794081A JPS57163106A JP S57163106 A JPS57163106 A JP S57163106A JP 4794081 A JP4794081 A JP 4794081A JP 4794081 A JP4794081 A JP 4794081A JP S57163106 A JPS57163106 A JP S57163106A
- Authority
- JP
- Japan
- Prior art keywords
- air
- oil
- pressure chamber
- plunger
- chamber
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
- F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
- F01L1/245—Hydraulic tappets
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
PURPOSE:To design early removal of air in a pressure chamber by enabling to lead only the air out to an oil drain side by removing oil having high viscosity by connecting a pressure chamber by an air vent provided on a circumferential wall of a plunger to an oil chamber in the plunger. CONSTITUTION:This is a device to make use of a volume change of air at a lift stage as well as a change of relative position between a tappet body 15 and a plunger 16 depending on the existence of air in a pressure chamber 17, and the air in the pressure chamber 17 is pushed out into an oil chamber 19 through an air vent 26. Moreover, the air in the pressure chamber 17 is removed in an early stage by sending air in a receding direction from a ball check valve 21 by means of a taper 27 in the oil chamber 19. Then, a deficiency, such as a seating sound of a valve is eliminated in an early stage and condition is restored to a regular one. Normally, it is similar to a plunger having no air vent 26, and injection of oil into the pressure chamber 17 from the oil chamber can be carried out smoothly through the taper 27. Thus, extraction of the air from an oil tappet can be made early.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4794081A JPS57163106A (en) | 1981-03-31 | 1981-03-31 | Oil tappet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4794081A JPS57163106A (en) | 1981-03-31 | 1981-03-31 | Oil tappet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57163106A true JPS57163106A (en) | 1982-10-07 |
Family
ID=12789361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4794081A Pending JPS57163106A (en) | 1981-03-31 | 1981-03-31 | Oil tappet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57163106A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5999012A (en) * | 1982-11-26 | 1984-06-07 | Fuji Valve Kk | Transversely disposed hydraulic valve clearance adjusting device for internal-combustion engine |
| JPS6032502U (en) * | 1983-08-10 | 1985-03-05 | 富士重工業株式会社 | Lush adjuster oil leakage prevention device |
| WO2005113942A1 (en) * | 2004-05-13 | 2005-12-01 | Schaeffler Kg | Hydraulic play compensation device |
-
1981
- 1981-03-31 JP JP4794081A patent/JPS57163106A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5999012A (en) * | 1982-11-26 | 1984-06-07 | Fuji Valve Kk | Transversely disposed hydraulic valve clearance adjusting device for internal-combustion engine |
| JPS6032502U (en) * | 1983-08-10 | 1985-03-05 | 富士重工業株式会社 | Lush adjuster oil leakage prevention device |
| WO2005113942A1 (en) * | 2004-05-13 | 2005-12-01 | Schaeffler Kg | Hydraulic play compensation device |
| US7921823B2 (en) | 2004-05-13 | 2011-04-12 | Schaeffler Kg | Hydraulic play compensation device |
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