Variable valve lift apparatus

Details Variable valve lift apparatus Variable valve lift apparatus

2011-06-28

2011-06-28

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150

Reexamination Certificate

active

07966981

ABSTRACT:
A variable valve lift apparatus may include a camshaft in which a cam is formed co-axially thereon; a variable shaft in which a groove is formed in an exterior circumference at a portion thereof, wherein the variable shaft is disposed in parallel with the camshaft; a variable guide, one end surface of which contacts the cam and the other end surface of which is inserted inside the groove of the variable shaft; a lever through which the variable shaft is rotatably inserted and on which the variable guide is slidably mounted; and a valve that is selectively lifted by the lever, wherein the variable guide selectively is inserted into the groove of the variable shaft to vary lift amount of the valve in accordance with rotation of the variable shaft.

REFERENCES:
patent: 7213551 (2007-05-01), Asada et al.

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