Variable valve apparatus of internal combustion engine

Details Variable valve apparatus of internal combustion engine Variable valve apparatus of internal combustion engine

2006-07-11

2006-07-11

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090170, C123S090310

Reexamination Certificate

active

07073470

ABSTRACT:
A variable valve apparatus comprises a rocker shaft having an eccentric shaft rendered eccentric, a cam provided below the rocker shaft and rotationally driven, a support shaft disposed at a height equal to the rocker shaft, a first arm rockingly supported by the rocker shaft and capable of driving a valve, a second arm rockingly supported by the eccentric shaft and driven by the cam, and a third arm rockingly supported by the support shaft and displaced by rocking of the second arm for driving the first arm, and turns the rocker shaft in the direction of R2to continuously change the valve opening timing and lift amount of the valve.

REFERENCES:
patent: 6422187 (2002-07-01), Fischer et al.
patent: 6786185 (2004-09-01), Pierik

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