Variable valve train apparatus for an internal combustion...

Details Variable valve train apparatus for an internal combustion... Variable valve train apparatus for an internal combustion...

2007-01-02

2007-01-02

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090390

Reexamination Certificate

active

10980775

ABSTRACT:
A variable valve train apparatus operable in a low-speed mode in which a low-speed rocker arm is rocked by a low-speed cam through a roller or a slipper to thereby open or close an intake valve, and in a high-speed mode in which a high-speed rocker arm is rocked by a high-speed cam through a roller or a slipper and a changeover mechanism part on the side of the low-speed rocker arm is pressed by a changeover mechanism part on the side of the high speed rocker arm together with which the low-speed rocker arm is rocked to open or close the intake valve. The axis of the changeover mechanism part is positioned at the middle of the width of the roller or slipper in the axial direction of the rocker shaft to prevent inclination of the high-speed rocker arm.

REFERENCES:
patent: 6467444 (2002-10-01), Tanaka et al.
patent: 2-223613 (1990-09-01), None
patent: 7-102921 (1995-04-01), None
patent: 2700691 (1997-10-01), None
patent: 10-18826 (1998-01-01), None
patent: 2001-14017 (2001-01-01), None
patent: 2003-343225 (2003-12-01), None

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