Multi valve engine with variable valve operation

Details Multi valve engine with variable valve operation Multi valve engine with variable valve operation

1996-04-10

1998-11-17

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9017, 123 9027, 123308, 123432, F01L 112, F01L 1300

Patent

active

058362746

ABSTRACT:
A number of embodiments of twin overhead cam shaft reciprocating machines having a plurality of poppet valves. A variable valve timing mechanism is interposed between the cam shafts and respective of the poppet valves for varying their lift and for changing the number of effective poppet valves per cylinder. The lift changing mechanism includes means for shifting at least one rocker arm follower and provides a relatively compact yet highly efficient structure for achieving this purpose.

REFERENCES:
patent: 3878822 (1975-04-01), Beal
patent: 5235940 (1993-08-01), Nakatani
patent: 5273006 (1993-12-01), Schapertons et al.
patent: 5287830 (1994-02-01), Dopson et al.
patent: 5419290 (1995-05-01), Hurr et al.
patent: 5463988 (1995-11-01), Paul
patent: 5529032 (1996-06-01), Oikawa et al.
patent: 5564373 (1996-10-01), Hara

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