GB812303A - Improvements in valve operating mechanism for internal combustion engines - Google Patents
Improvements in valve operating mechanism for internal combustion enginesInfo
- Publication number
- GB812303A GB812303A GB3317356A GB3317356A GB812303A GB 812303 A GB812303 A GB 812303A GB 3317356 A GB3317356 A GB 3317356A GB 3317356 A GB3317356 A GB 3317356A GB 812303 A GB812303 A GB 812303A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- camshaft
- crankshaft
- housing
- driven
- 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
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
- F01L13/0021—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque by modification of rocker arm ratio
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
812,303. Regulating; valve gear. WALBRON, F. B. June 12, 1957 [Oct. 31, 1956], No. 33173/56. Class 7(6) Each valve 15 is operated by two cams A, B, which are independently adjusted by separate centrifugal governors to adjust the valve timing. The cam shafts A, B, are driven from the crankshaft 11 through chain gears and each pair of cams operates through tappets 16, 19 and push rods 17, 20, on a single rocker 18 actuating the valve 15. The centrifugal governors comprise a housing 29, Fig. 4, keyed to a camshaft and carrying a sprocket wheel 30 rotatable relatively thereto and driven from the crankshaft. The centrifugal weights 31 are pivoted on the housing 29 at 32 and on the sprocket wheel 30 at 33 so that outward movement of the weights against the force of the loading springs 34 rotates the cam shaft relative to the wheel 30. At a predetermined speed the first governor adjusts camshaft A to advance the opening of the valve 15 and simultaneously or at a different predetermined speed the second governor adjusts camshaft B to retard the valve closing.
Publications (1)
Publication Number | Publication Date |
---|---|
GB812303A true GB812303A (en) | 1959-04-22 |
Family
ID=1743349
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3317356A Expired GB812303A (en) | 1956-10-31 | Improvements in valve operating mechanism for internal combustion engines |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB812303A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2489413A1 (en) * | 1980-08-28 | 1982-03-05 | Farkas Pierre | THERMAL MOTOR WITH PROLONGED RELIEF, COMPRESSION REALIZABLE |
US4577592A (en) * | 1984-06-27 | 1986-03-25 | Bosch Henery G K | Self adjusting camshaft gear for internal combustion engines |
GB2200952A (en) * | 1987-02-10 | 1988-08-17 | Stidworthy Frederick M | Adjustable valve gear |
EP0352580A1 (en) * | 1988-07-28 | 1990-01-31 | Krupp MaK Maschinenbau GmbH | Operating system of internal-combustion engine valves |
-
1956
- 1956-10-31 GB GB3317356A patent/GB812303A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2489413A1 (en) * | 1980-08-28 | 1982-03-05 | Farkas Pierre | THERMAL MOTOR WITH PROLONGED RELIEF, COMPRESSION REALIZABLE |
US4577592A (en) * | 1984-06-27 | 1986-03-25 | Bosch Henery G K | Self adjusting camshaft gear for internal combustion engines |
GB2200952A (en) * | 1987-02-10 | 1988-08-17 | Stidworthy Frederick M | Adjustable valve gear |
EP0352580A1 (en) * | 1988-07-28 | 1990-01-31 | Krupp MaK Maschinenbau GmbH | Operating system of internal-combustion engine valves |
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