Device for controlling a valve of an internal combustion engine

Details Device for controlling a valve of an internal combustion engine Device for controlling a valve of an internal combustion engine

1995-03-16

1996-11-26

Lo, Weilun

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9044, F01L 118, F01L 120, F01L 104, F01L 1300

Patent

active

055774695

ABSTRACT:
A device connected to a valve stem for controlling a valve of an internal combustion engine. The device includes a cam having a first peripheral contour and a disk having a second peripheral contour smaller than the first peripheral contour. A first rocker arm is pivotable on an axle mounted bearing based on the second peripheral contour of the disk. A compensation device is positioned between the first rocker arm and the valve stem for maintaining contact therebetween. A second rocker arm is pivotable on the bearing based on the first peripheral contour of the cam. A drive selectively couples the second rocker arm to the valve stem. The drive includes a radially displaceable spherical driver disposed within the first rocker arm. A locking slide includes an engagement surface which radially displaces the spherical drive into a spherical depression on the second rocker arm so that the valve operates based on the first peripheral contour of the cam.

REFERENCES:
patent: 4777914 (1988-10-01), Konno
patent: 5090364 (1992-02-01), McCarroll et al.
patent: 5239952 (1993-08-01), Morita
patent: 5301636 (1994-04-01), Nakamura
patent: 5402756 (1995-04-01), Bohme et al.
patent: 5413071 (1995-05-01), Paul et al.

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