Four-cycle engine

Details Four-cycle engine Four-cycle engine

1996-08-15

1997-03-04

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

Plural valve trains, single actuator

123 9031, 123 9033, 123196CP, 123196W, 123198C, 184 65, F01M 102, F01M 910

Patent

active

056069430

ABSTRACT:
A gear 11 on a crankshaft 10 is made to engage with an internal gear 21 having twice the number of teeth of the gear 11, cams 22 are formed on the exterior surface of the internal gear 21, and the cams 22 are connected with valve actuating mechanisms 40 for actuating an exhaust valve 44 and an intake valve 40 to open or close. The gear 11, the internal gear 21, etc. have the function of an oil pump.

REFERENCES:
patent: 1385104 (1921-07-01), Afanador
patent: 4624227 (1986-11-01), Wiinsche
patent: 4697555 (1987-10-01), Fujikawa et al.
patent: 4736717 (1988-04-01), Fujikawa et al.
patent: 4984539 (1991-01-01), Shinoda et al.
patent: 5090375 (1992-02-01), Hudson
patent: 5243937 (1993-09-01), Imagawa
patent: 5267536 (1993-12-01), Imagawa et al.

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