Automatic timing variation device for an internal combustion eng

Details Automatic timing variation device for an internal combustion eng Automatic timing variation device for an internal combustion eng

1989-04-26

1989-12-26

Myhre, Charles J.

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, F01L 134

Patent

active

048890863

ABSTRACT:
The proposed device comprises a cylinder rigid with a camshaft drive pulley, and a piston restrained to said cylinder and camshaft by helical groove connections and prismatic pair connections which, on command, allow said camshaft to undergo rotation relative to said pulley.

REFERENCES:
patent: 4231330 (1980-11-01), Garcea
patent: 4421074 (1983-12-01), Garcea et al.
patent: 4535731 (1985-08-01), Banfi
patent: 4601266 (1986-07-01), Oldfield et al.
patent: 4787345 (1988-11-01), Thoma
patent: 4811698 (1989-03-01), Akasaka et al.

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