GB574852A - Improved hydraulic valve tappet for internal combustion engines - Google Patents
Improved hydraulic valve tappet for internal combustion enginesInfo
- Publication number
- GB574852A GB574852A GB2204/44A GB220444A GB574852A GB 574852 A GB574852 A GB 574852A GB 2204/44 A GB2204/44 A GB 2204/44A GB 220444 A GB220444 A GB 220444A GB 574852 A GB574852 A GB 574852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- held
- internal combustion
- retainer
- plunger
- 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
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
574,852. Valve gear. GENERAL MOTORS CORPORATION. Feb. 7, .1944, No. 2204. Convention date, March 10, 1943. [Class 7 (vi,)] Hydraulic means for reducing tappet chatter comprise a hollow tappet body 52 which is lifted by the cam 58 and a plunger 82, connected to the valve, e.g. by a push-rod 42, and provided with an annular recess 80 to which oil is supplied by a passage 70, and from which it flows past a cone-shaped resilient washer 86 to a chamber 114; restricted escape means for the oil comprise a pin 110 and a passage 108. The resilient washer 86, which may be made from a material known as "Neoprene," is held by a retainer 90 mounted on a spring 96. A block 100 limits the movement of the plunger and diminishes the size of the oil chamber 114. In the modification, Fig. 3, the washer 86 is held by a spacer 118 having a collar 137 and a retainer 90<1> having a number of small grooves on its upper surface. The parts are held together by a pin 110' which has a helical groove 136 whereby a small amount of oil is allowed to escape to a vent 108.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US574852XA | 1943-03-10 | 1943-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB574852A true GB574852A (en) | 1946-01-23 |
Family
ID=22010849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2204/44A Expired GB574852A (en) | 1943-03-10 | 1944-02-07 | Improved hydraulic valve tappet for internal combustion engines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB574852A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239124A2 (en) * | 2001-03-09 | 2002-09-11 | INA- Schaeffler KG | Deactivable tappet for transmission of cam lift on a pushrod |
| EP1239123A3 (en) * | 2001-03-09 | 2003-01-08 | INA- Schaeffler KG | Deactivable valve tappet for transmission of cam lift on a pushrod |
| WO2003067038A1 (en) * | 2002-02-06 | 2003-08-14 | Ina-Schaeffler Kg | Switch element for valve actuation in an internal combustion engine |
| US8161929B2 (en) | 2007-11-21 | 2012-04-24 | Schaeffler Kg | Switchable tappet |
| USRE44864E1 (en) | 2001-09-19 | 2014-04-29 | Ina Schaeffler Kg | Switching element for a valve train of an internal combustion engine |
-
1944
- 1944-02-07 GB GB2204/44A patent/GB574852A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1239124A2 (en) * | 2001-03-09 | 2002-09-11 | INA- Schaeffler KG | Deactivable tappet for transmission of cam lift on a pushrod |
| EP1239123A3 (en) * | 2001-03-09 | 2003-01-08 | INA- Schaeffler KG | Deactivable valve tappet for transmission of cam lift on a pushrod |
| EP1239124A3 (en) * | 2001-03-09 | 2003-01-08 | INA- Schaeffler KG | Deactivable tappet for transmission of cam lift on a pushrod |
| USRE44864E1 (en) | 2001-09-19 | 2014-04-29 | Ina Schaeffler Kg | Switching element for a valve train of an internal combustion engine |
| WO2003067038A1 (en) * | 2002-02-06 | 2003-08-14 | Ina-Schaeffler Kg | Switch element for valve actuation in an internal combustion engine |
| US6997154B2 (en) | 2002-02-06 | 2006-02-14 | Ina-Schaeffler Kg | Switch element |
| US8161929B2 (en) | 2007-11-21 | 2012-04-24 | Schaeffler Kg | Switchable tappet |
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