Variable valve unit for internal combustion engine

Details Variable valve unit for internal combustion engine Variable valve unit for internal combustion engine

2008-01-01

2008-01-01

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090390, C123S090600

Reexamination Certificate

active

07314027

ABSTRACT:
A variable valve unit for an internal combustion engine includes a first arm opening and closing a valve, a second arm driven by a cam, a third arm receiving a displacement of the second arm to drive the first arm, and a variable mechanism displacing the fulcrum of the second arm. The second arm has a drive plane. The third arm has a shaft member formed with a driven surface contacting with the drive plane. The displacement of the second arm is transmitted to the third arm with sliding between the driven surface and the drive plane.

REFERENCES:
patent: 5121716 (1992-06-01), Takahashi et al.
patent: 5186128 (1993-02-01), Murata et al.
patent: 3245492 (2001-10-01), None

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