Valve control for reciprocating piston internal combustion...

Details Valve control for reciprocating piston internal combustion... Valve control for reciprocating piston internal combustion...

2011-04-12

2011-04-12

Eshete, Zelalem (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090500, C123S090160

Reexamination Certificate

active

07921818

ABSTRACT:
Valve controller for reciprocating piston internal combustion engines with at least two intake and/or exhaust gas-exchange valves for each piston/cylinder unit, wherein the gas-exchange valves are guided by valve stems in a cylinder head (8) of the reciprocating piston internal combustion engine, loaded in a closing direction by valve springs, and can be controlled via a common bridge (10) by an activation device, wherein the bridge (10) is guided over a sliding surface parallel to the movement of the gas-exchange valves, the bridge (10) has at least one hydraulic valve clearance compensation element (14or15) that connects to a gas-exchange valve, and a device is provided that prevents rotation of the bridge (10) about the sliding surface.

REFERENCES:
patent: 3963004 (1976-06-01), Lysinger et al.
patent: 5778842 (1998-07-01), Schmidt et al.
patent: 6883492 (2005-04-01), Vanderpoel et al.
patent: 2006/0000432 (2006-01-01), Yamamoto et al.

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