Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2009-02-03
2011-10-04
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090150, C464S160000
Reexamination Certificate
active
08028667
ABSTRACT:
A valve timing adjusting apparatus includes a driving-side rotor, a driven-side rotor, and a bias mechanism. The bias mechanism includes a projection portion that is rotatable synchronously with the one of the driving-side and driven-side rotors and that contacts a contact part of the other one of the driving-side and driven-side rotors. The contact part includes a receiver part that is configured to increase the restoring force of the resilient member when the other one of the driving-side and driven-side rotors is rotated relative to the one of the driving-side and driven-side rotors in the advance direction or in the retard direction.
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Japanese Office Action dated Dec. 15, 2009, issued in corresponding Japanese Application No. 2008-029432, with English translation.
Japanese Office Action dated Apr. 27, 2010, issued in corresponding Japanese Application No. 2008-029432, with English translation.
Chang Ching
Denso Corporation
Nixon & Vanderhye PC
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