System for variably actuating valves in internal combustion...

Details System for variably actuating valves in internal combustion... System for variably actuating valves in internal combustion...

2005-10-18

2005-10-18

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

With means for varying timing

C123S090150, C123S090200, C123S090410, C123S19800E, C074S519000

Reexamination Certificate

active

06955146

ABSTRACT:
A system for variably actuating valves by means of cams for internal combustion engines has the following type of construction: A camshaft is rotationally supported in the cylinder head and has a fixed position in relation to the valves and their associated stroke-transmitting arrangements. A stroke-transmitting arrangement guided in a fixed position is associated with each of the valves arranged in the cylinder head and closes by means of spring force. A variable position element for adjusting the stroke of the valve is guided in a stationary manner in the cylinder head. An intermediate element is supported and pivotably guided on the variable position element. A cam of the camshaft is engaged by the intermediate element and is supported in a stationary manner in the cylinder head, as well as the stroke-transmitting arrangement associated with the valve.

REFERENCES:
patent: 2934052 (1960-04-01), Longenecker
patent: 4572118 (1986-02-01), Baguéna
patent: 4723515 (1988-02-01), Burandt
patent: 4898130 (1990-02-01), Parsons
patent: 5205247 (1993-04-01), Hoffman
patent: 6354255 (2002-03-01), Methley et al.
patent: 26 29 554 (1978-01-01), None
patent: 38 33 540 (1990-04-01), None
patent: 199 13 742 (2000-09-01), None
patent: 101 23 186 (2002-11-01), None

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