GB812303A - Improvements in valve operating mechanism for internal combustion engines - Google Patents

Improvements in valve operating mechanism for internal combustion engines

Info

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
Application number
GB3317356A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of GB812303A publication Critical patent/GB812303A/en
Expired legal-status Critical Current

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.
GB3317356A 1956-10-31 Improvements in valve operating mechanism for internal combustion engines Expired GB812303A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (4)

* Cited by examiner, † Cited by third party
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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