Valve actuator for actuating a gas exchange valve of an...

Details Valve actuator for actuating a gas exchange valve of an... Valve actuator for actuating a gas exchange valve of an...

2005-03-29

2005-03-29

Denion, Thomas (Department: 3748)

Internal-combustion engines

Poppet valve operating mechanism

Hydraulic system

C123S090150, C123S090240, C123S188500, C074S57900F

Reexamination Certificate

active

06871619

ABSTRACT:
A valve actuator for actuating a gas exchange valve of an internal combustion engine, having a sleeve-shaped positioning piston, which is connected to a valve shaft, having at least two shell-shaped wedge parts, enclosing a shaft end of the valve shaft, on whose radial outer peripheral surface a section shaped like a conical casing is implemented and which are axially connected on their inner side to the shaft end in a form-locked and rotatable manner, the valve actuator having a separate threaded sleeve, which has a threaded connection to the positioning piston or a component connected to the positioning piston and also axially clamps the wedge parts to a conical clamp sleeve via their section shaped like a conical casing.

REFERENCES:
patent: 5231959 (1993-08-01), Smietana
patent: 6178935 (2001-01-01), Diehl et al.
patent: 6688268 (2004-02-01), Schlembach et al.
patent: 6729287 (2004-05-01), Hammer et al.
patent: 6776129 (2004-08-01), Diehl et al.
patent: 100 40 114 (2002-02-01), None
patent: 101 16 218 (2002-10-01), None

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