Engine valve actuation system and method

Details Engine valve actuation system and method Engine valve actuation system and method

2007-10-30

2007-10-30

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090150, C123S090160, C123S090200, C123S090310

Reexamination Certificate

active

11341282

ABSTRACT:
The present invention provides a valve actuation system for an internal combustion engine. The valve actuation system of the present invention may provide an increased range of auto-ignition operation by providing a valve re-opening mechanism to provide products of combustion into the cylinder to increase the thermal efficiency and stability of the auto-ignition combustion process. The present invention allows the poppet valve re-opening timing, lift and duration to be tailored to specific engine architecture and operating conditions. Additionally, the present invention provides a method of re-opening a poppet valve of an internal combustion engine.

REFERENCES:
patent: 6082342 (2000-07-01), Duret et al.
patent: 6386177 (2002-05-01), Urushihara et al.
patent: 6510824 (2003-01-01), Vorih et al.
patent: 6941909 (2005-09-01), Robel et al.
patent: 7162996 (2007-01-01), Yang
patent: WO0146571 (2001-06-01), None
patent: WO0146572 (2001-06-01), None
patent: WO0146573 (2001-06-01), None

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