Gas exchange valve mechanism for an internal combustion engine

Details Gas exchange valve mechanism for an internal combustion engine Gas exchange valve mechanism for an internal combustion engine

2005-02-01

2005-02-01

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090150

Reexamination Certificate

active

06848400

ABSTRACT:
A gas exchange valve device for an internal combustion engine is provided with a hydraulic apparatus which includes a fluid circuit and at least one pressure reservoir connected to the fluid circuit and containing piston prestressed by a device, and also includes a controllable actuating device. A gas exchange valve is also provided, whose valve element is acted on by the actuating device. In order to achieve a simpler design of the gas exchange valve device the pressure reservoir is disposed so that in an approximately unpressurized state of the pressure reservoir, its piston at least indirectly locks the valve element of the gas exchange valve in an essentially closed position.

REFERENCES:
patent: 6223846 (2001-05-01), Schechter
patent: 6308690 (2001-10-01), Sturman
patent: 6321703 (2001-11-01), Diehl et al.
patent: 37 39 891 (1989-06-01), None
patent: 198 26 047 (1999-12-01), None
patent: 199 35 871 (2001-02-01), None

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