Variable valve control for internal combustion engines

Details Variable valve control for internal combustion engines Variable valve control for internal combustion engines

1998-10-15

2000-03-07

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9027, 123 9031, F01L 134, F01L 104

Patent

active

060326255

ABSTRACT:
In a variable valve control for an internal combustion engine with a cylinder head having a first camshaft controlling the opening of the engines intake valves and a second camshaft for controlling the closing of the engines intake valve, a control drive for driving the second camshaft at a variable angular position relative to the first camshaft so as to permit controlling the intake valve opening duration, a control wheel with an eccentric collar for actuating the control drive and a control motor for operating the control wheel, all mounted on a bearing housing supporting the camshafts, the control wheel is mounted on the bearing housing sidewardly displaced from the control drive and the control motor has a drive shaft which extends transversely to the axis of the control wheel and is supported on the camshaft bearing housing.

REFERENCES:
patent: 4535733 (1985-08-01), Honda
patent: 4546735 (1985-10-01), O'Neal
patent: 4862845 (1989-09-01), Butterfield et al.
patent: 4976229 (1990-12-01), Charles
patent: 4986801 (1991-01-01), Ohlendorf et al.
patent: 5052350 (1991-10-01), King
patent: 5178105 (1993-01-01), Norris
patent: 5431132 (1995-07-01), Kreuter et al.
patent: 5540197 (1996-07-01), Golovatai-Schmidt et al.
patent: 5555860 (1996-09-01), Wride
patent: 5586527 (1996-12-01), Kreuter
patent: 5592906 (1997-01-01), Kreuter et al.

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