GB519914A - Improvements in the actuation of the valves of internal combustion and other engines - Google Patents
Improvements in the actuation of the valves of internal combustion and other enginesInfo
- Publication number
- GB519914A GB519914A GB3516038A GB3516038A GB519914A GB 519914 A GB519914 A GB 519914A GB 3516038 A GB3516038 A GB 3516038A GB 3516038 A GB3516038 A GB 3516038A GB 519914 A GB519914 A GB 519914A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- rollers
- valve
- stirrup
- cam
- 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
- F01L1/30—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of positively opened and closed valves, i.e. desmodromic valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
519,914. Valve gear; lubricating. WATTEL, A. L. F. Dec. 2, 1938, No. 35160. [Class 122 (ii)] [Also in Group XXVII] A valve 1 is positively actuated in both directions by means of a lever 24 having a pair of rollers 29 engaging respectively an external cam 30 at one side of a disc 32, and an internal cam 31 at the other side of the disc, the lever 24 being connected by a rod 21 to a lever 14, which has a forked end carrying rollers 17 sliding in horizontal guides 6 forward in a stirrup 5 sliding upon the valve guide 2. A spring 8 above the stirrup bears on a washer 9 on the valve stem, and an adjustable screw 12 in the top of the stirrup engages the top of the valve stem with a slight clearance. The cam rollers 29 are mounted on roller bearings, and lubricated through passages provided in the pivot 25 and arms of the lever 24. In a modification, the cams act directly on rollers at the end of the lever 14, the rod 21 and lever 24 being omitted.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3516038A GB519914A (en) | 1938-12-02 | 1938-12-02 | Improvements in the actuation of the valves of internal combustion and other engines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3516038A GB519914A (en) | 1938-12-02 | 1938-12-02 | Improvements in the actuation of the valves of internal combustion and other engines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB519914A true GB519914A (en) | 1940-04-09 |
Family
ID=10374517
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3516038A Expired GB519914A (en) | 1938-12-02 | 1938-12-02 | Improvements in the actuation of the valves of internal combustion and other engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB519914A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3610218A (en) * | 1970-04-13 | 1971-10-05 | Roger Owen Durham | Desmodromic valve actuator |
GB2183728A (en) * | 1985-12-07 | 1987-06-10 | Ford Motor Co | Desmodromic valve system for i.c. engines |
DE102005034177B3 (en) * | 2005-07-21 | 2006-12-14 | Monika Sedlbauer | Positively controlled valve drive device for e.g. racing engine, has valves driven by rocker arm from cams, which are driven rotatably in same direction, and intermediate gear wheel adjustably supported to opening and closing gear wheels |
-
1938
- 1938-12-02 GB GB3516038A patent/GB519914A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3610218A (en) * | 1970-04-13 | 1971-10-05 | Roger Owen Durham | Desmodromic valve actuator |
GB2183728A (en) * | 1985-12-07 | 1987-06-10 | Ford Motor Co | Desmodromic valve system for i.c. engines |
DE102005034177B3 (en) * | 2005-07-21 | 2006-12-14 | Monika Sedlbauer | Positively controlled valve drive device for e.g. racing engine, has valves driven by rocker arm from cams, which are driven rotatably in same direction, and intermediate gear wheel adjustably supported to opening and closing gear wheels |
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