Title:
DRIVING MECHANISM FOR PLURAL VALVES
Document Type and Number:
Japanese Patent JPS58126409
Kind Code:
A
Abstract:
PURPOSE:To permit use of a single cam shaft and obviate the necessity of a locker arm by arranging the pivotal supporting parts of the locker arm in zigzag form alternately on the both sides of the cam shaft viewed in the direction of the axis line of the cam shaft. CONSTITUTION:The pivotal supporting parts 51 and 52 of a locker arm are arranged in zigzag form alternately on the both sides of a cam shaft 11. Therefore, each locker arm does not interfere with other locker arms, valve springs, retainer springs etc. each other. Opening and closing of the main intake and exhaust valves 1 and 3 and an auxiliary valve 5 are cntrolled, being metched to a prescribed valve timing by the cams 25, 27, and 29 of the cam shaft 11. The movement of each cam is transmitted to each valve system through the swing- type locker arms 31, 33 and 35 which are arranged in zigzag form mutually. Thus, the necessity for a locker arm can be obviated by using a single cam shaft.
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Inventors:
SASAKI YOSHIO
SAITOU KAZUYUKI
SAITOU KAZUYUKI
Application Number:
JP879982A
Publication Date:
July 27, 1983
Filing Date:
January 25, 1982
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD
International Classes:
F01L1/18; F01L1/26; F01L1/44; F01L1/46; F02F1/24; F02F1/42; (IPC1-7): F01L1/14
Domestic Patent References:
| JP38025102A |
Foreign References:
| US3563215A | 1971-02-16 |
Attorney, Agent or Firm:
Aoki Akira