Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2006-10-17
2009-10-20
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090390, C123S090610, C074S569000
Reexamination Certificate
active
07603971
ABSTRACT:
A valve operating mechanism for an internal combustion engine includes a drive member that engages a control arm at a contact point spaced apart from the pivot axis of the control arm, and a control member that operates to vary the contact point in order to vary a spacing between the contact point and the pivot axis of the control arm to vary the amplitude of reciprocation of a cam surface of the control arm and to vary the portion of the cam surface which is engaged by a cam follower member during pivoting of the control arm to thereby vary the amount of lift and/or opening duration of the engine valve.
REFERENCES:
patent: 5555860 (1996-09-01), Wride
patent: 6688267 (2004-02-01), Raghavan
patent: 10119686 (2002-11-01), None
patent: 9421897 (1994-09-01), None
patent: 03062609 (2003-07-01), None
patent: 2005052326 (2005-06-01), None
International Search Report from GB0522069.4.
Chang Ching
Luedeka Neely & Graham PC
Scion-Sprays Limited
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