Device for changing a rotational position of a control shaft tha

Details Device for changing a rotational position of a control shaft tha Device for changing a rotational position of a control shaft tha

1994-02-25

1994-11-22

Cross, E. Rollins

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

123 9031, 74568R, 464 2, F01L 134

Patent

active

053658981

ABSTRACT:
A device for changing the rotational position of a rotating, driven control shaft that controls the opening and closing of gas exchange valves of an internal combustion engine and is displaced via an electric motor and an interposed toggle lever arrangement having a downstream diagonal toothing arrangement for simplified displacement with minimal force and energy expenditures. The result is a simple, accessible, easy to maintain economical displacement drive for changing the rotational position of the control shaft in order to change the control times of gas-exchange valves in an internal combustion engine.

REFERENCES:
patent: 3978829 (1976-09-01), Takahashi et al.
patent: 4463712 (1984-08-01), Stojek et al.
patent: 4494495 (1985-01-01), Nakamura et al.
patent: 4494496 (1985-01-01), Nakamura et al.
patent: 4498431 (1985-02-01), Nakamura et al.
patent: 4561390 (1985-12-01), Nakamura et al.

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