Internal-combustion engines – Poppet valve operating mechanism – With means for varying timing
Reexamination Certificate
2009-04-28
2011-12-06
Chang, Ching (Department: 3748)
Internal-combustion engines
Poppet valve operating mechanism
With means for varying timing
C123S090150, C123S347000, C318S139000
Reexamination Certificate
active
08069829
ABSTRACT:
A method for operating a vehicle, the vehicle including an internal combustion engine coupled in the vehicle, the engine having at least one cylinder with an intake and an exhaust valve, where the opening and closing timing of the intake valve is adjustably retardable and the opening and closing timing of the exhaust valve is adjustably retardable via camshaft adjustments, during engine operation, an energy conversion device coupled in the vehicle capable of selectively supplying and absorbing torque during vehicle operation, and a transmission, the method comprising: adjustably retarding intake valve opening timing and intake valve closing timing from piston top dead center; and adjusting operation of the transmission and the energy conversion device to maintain engine speed sufficient to enable adjustment of said intake and exhaust valve timing.
REFERENCES:
patent: 5803029 (1998-09-01), Yoshihara et al.
patent: 5924395 (1999-07-01), Moriya et al.
patent: 5957096 (1999-09-01), Clarke et al.
patent: 6085706 (2000-07-01), Kadowaki et al.
patent: 6158413 (2000-12-01), Kimura et al.
patent: 6233508 (2001-05-01), Deguchi et al.
patent: 6250266 (2001-06-01), Okui et al.
patent: 6445982 (2002-09-01), Swales et al.
patent: 6637386 (2003-10-01), Murata et al.
patent: 6742484 (2004-06-01), Sluka et al.
patent: 7527028 (2009-05-01), Leone
patent: 7765966 (2010-08-01), Leone
patent: 2007/0209618 (2007-09-01), Leone
patent: 1715621 (2006-01-01), None
patent: 2002081330 (2002-03-01), None
patent: 2004061274 (2004-07-01), None
patent: 2005/083249 (2005-09-01), None
Stein, R.A. et al., “Dual Equal VCT—A Variable Camshaft Timing Strategy for Improved Fuel Economy and Emissions”, SAE Technical Paper Series No. 950975, Ford Motor Company.
Hirose, K. et al., “Improving Engine Efficiency with High Expansion Ratio Cycle”, JSAE Technical Paper Series No. 9739552, Toyota Motor Company.
Alleman Hall McCoy Russell & Tuttle LLP
Chang Ching
Ford Global Technologies LLC
Lippa Allan J.
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