Valve timing adjusting apparatus

Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing

Reexamination Certificate

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Details

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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patent: 2009/0173298 (2009-07-01), Hayashi
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patent: 2006-132411 (2006-05-01), None
patent: 2006-220154 (2006-08-01), None
patent: 2007-120406 (2007-05-01), None
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.

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