Patent ID: 6688268
Filing Date: 2004-02-10
Classification: F01L

Abstract:
A connection (18) between a shaft end (14) of a gas exchange valve (1) of an internal combustion engine and a final control element (2) of a valve actuator (4), comprisingat least two shell-shaped wedge-shaped pieces (22, 24), surrounding the shaft end (14) and braced on the final control element (2), the radially outer circumferential surface of the shell shaped pieces extend conically, at least one conical clamping sleeve (26) surrounding said shell shaped pieces and having a radially inner circumferential surface extending complimentary to the cone angle of the wedge-shaped pieces (22, 24), protrusions (42) and recesses (44) that mesh with one another provided on the radially inner circumferential surface (38) of the wedge-shaped pieces (22, 24) and on the radially outer circumferential surface (40) of the shaft end (14) of the gas exchange valve (1), the wedge shaped pieces adjoining one another without gaps in the circumferential direction, forming an encompassing wedge-shaped sleeve (22, 24), whose inside diameter is slightly larger than the outside diameter of the shaft end (14) of the gas exchange valve (1) to enable rotary motions of the shaft end (14) relative to the wedge-shaped pieces (22, 24), the protrusions (42) and recesses (44) meshing with one another with slight play, and wherein a shaft (6) of the gas exchange valve (1) extends from a cylinder head of the engine through an actuator housing (8) of the valve actuator (4) until essentially inside a region of an opening (12), embodied in an upper wall (10) of the actuator housing (8), through which opening the connection (18) is accessible from above after mounting of the valve actuator (4) on the cylinder head.