Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2005-06-07
2008-10-14
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090170, C123S345000
Reexamination Certificate
active
07434553
ABSTRACT:
In a variable valve mechanism, a control shaft is associated with an advance oil passage such that the same passage is closed by the control shaft when a maximum valve lift amount of an intake valve is equal to or larger than a reference lift amount. The control shaft is associated with the advance oil passage such that a range in which the control shaft displaces is limited to a range between a minimum value of the maximum valve lift amount and a lift amount just before the reference lift amount when an advance angle of the intake valve is equal to or larger than a reference advance angle.
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German Language Version of German Office Action, Appln. No. 10 2005 026 950.8 issued Mar. 29, 2007.
German Translation of German Office Action, Appln. No. 10 2005 026 950.8 issued Mar. 29, 2007.
Japanese Language Version of Japanese Office Action, Appln. No. JP 2004-174676 issued on Aug. 28, 2007.
English Translation of Japanese Office Action, Appln. No. JP 2004-174676 issued on Aug. 28, 2007.
Chang Ching
Kenyon & Kenyon LLP
Toyota Jidosha & Kabushiki Kaisha
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