Variable valve device for engine

Details Variable valve device for engine Variable valve device for engine

2009-02-18

2011-11-22

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390

Reexamination Certificate

active

08061313

ABSTRACT:
A variable valve device is constructed to prevent inclination of a sliding surface of a high speed rocker arm. In an engagement surface where a connecting pin and the engagement portion of a high speed rocker arm are in contact, the center of the width of the surface in the direction of the cam shaft is provided closer to the high speed rocker arm than the center of the width in the direction of the camshaft of a cam contact surface where the high speed cam and the sliding surface of the high speed rocker arm are in contact. The low speed rocker arm includes a cam receiver and a connecting portion. The width of the connecting portion is larger than that of the cam receiver. The side surface of the connecting portion projects beyond the side surface of the cam receiver. The high speed rocker arm includes a cam receiver and a connecting portion. The side surface of the connecting portion and the side surface of the connecting portion are provided in the cam contact surface and within the width of the surface in the direction of the camshaft.

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Official Communication issued in corresponding European Patent Application No. 09002268.2, mailed on Aug. 18, 2009.

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