Valve operating device for an internal combustion engine

Details Valve operating device for an internal combustion engine Valve operating device for an internal combustion engine

2005-11-01

2005-11-01

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090390, C074S569000, C074S053000

Reexamination Certificate

active

06959674

ABSTRACT:
A valve gear mechanism for an internal combustion engine includes a camshaft in a separate cylinder head for controlling the stroke of a gas shuttle valve by means of an interposed rocker arm, which is mounted in the cylinder head of a piston that performs a lifting motion of a hydraulic valve-play compensation element. The aim of the invention is to achieve a play-free surface liaison of mechanical origin between the actuating elements of the gas shuttle valve. To achieve this, the piston of the hydraulic compensation element has a device that acts on an instrument for mechanically actuating a lifting stroke in order to achieve a play-free surface liaison of the contract surfaces of the rocker arm and an additional valve gear element, while the valve-play compensation element is maintained hydraulically without pressure.

REFERENCES:
patent: 5695430 (1997-12-01), Moyer
patent: 6085704 (2000-07-01), Hara
patent: 42 08 335 (1994-09-01), None
patent: 199 13 742 (2000-09-01), None
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patent: 59-041614 (1984-03-01), None
patent: 59-218316 (1984-12-01), None
patent: 7-103854 (1995-04-01), None

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