Variable valve mechanism for internal combustion engines

Details Variable valve mechanism for internal combustion engines Variable valve mechanism for internal combustion engines

1986-04-24

1987-09-01

Feinberg, Craig R.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9022, 123 904, F01L 134

Patent

active

046901108

ABSTRACT:
A variable valve mechanism for an internal combustion engine including a central cam of a smaller lift and a pair of side cams located at the opposite sides of the central cam symmetrically with each other with respect to the central cam. A rocker arm device includes a pair of side arm sections engaged respectively with the side cams and a central arm between the side arm sections. The central arm is engaged at one end with the engine valve and at the other end with the central cam. A connecting device is provided for connecting the side arm sections with the central arm under a high speed.

REFERENCES:
patent: 4354460 (1982-10-01), Mae et al.
patent: 4448156 (1984-05-01), Henault
patent: 4534323 (1985-08-01), Kato et al.
patent: 4556025 (1985-12-01), Morita
patent: 4561391 (1985-12-01), Simko
patent: 4627391 (1986-12-01), Derringer

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