Gas exchange valve actuating apparatus

Details Gas exchange valve actuating apparatus Gas exchange valve actuating apparatus

2007-11-02

2010-11-09

Chang, Ching (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Rocker

C123S090120, C123S090270, C123S090440, C029S888200, C074S569000

Reexamination Certificate

active

07827951

ABSTRACT:
In a gas exchange valve operating apparatus with at least one overhead camshaft for actuating the gas exchange valves, with a hydraulic medium supply passage extending through the camshaft and with at least one hydraulic switchable support unit cooperating with a lever-like cam follower which is disposed on a switchable support unit and on a gas exchange valve and is furthermore in contact with the overhead camshaft, the support unit is disposed in communication with at least one pressure medium supplied via the hydraulic medium supply passage of the camshaft.

REFERENCES:
patent: 3875908 (1975-04-01), Ayres
patent: 4441465 (1984-04-01), Nakamura
patent: 4615306 (1986-10-01), Wakeman
patent: 2004/0244744 (2004-12-01), Falkowski et al.
patent: 43 18 293 (1983-12-01), None
patent: 198 40 404 (2000-05-01), None
patent: 0 156 996 (1985-10-01), None
patent: 0 259 106 (1988-03-01), None
patent: 58 005416 (1983-01-01), None
patent: 60-184936 (1985-09-01), None

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