Apparatus and method for controlling the valve operation of an i

Details Apparatus and method for controlling the valve operation of an i Apparatus and method for controlling the valve operation of an i

1981-10-13

1984-03-27

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 123 9044, F01L 134

Patent

active

044387377

ABSTRACT:
A rotatable cam and pivotally mounted rocker arm are employed for each valve of an internal combustion engine. The rocker arm has a working or cam follower surface thereon which includes a straight section and a curved section. By relatively moving the cam and rocker arm so that the cam acts against appropriate portions of the cam follower surface, the moment of valve opening and closing is controlled, as well as the lift and duration of valve opening. The invention makes possible what is herein termed a five-cycle operation in that the following sequence can be achieved: (1) intake, (2) decompression, (3) compression, (4) power, and (5) exhaust.

REFERENCES:
patent: 3157166 (1964-11-01), MacNeill
patent: 3441009 (1969-04-01), Rafanelli
patent: 3496918 (1970-02-01), Finlay
patent: 3641988 (1972-02-01), Torazza et al.
patent: 3897760 (1975-08-01), Hisserich
patent: 3986484 (1976-10-01), Dyer
patent: 4280451 (1981-07-01), Moore

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