Camshaft arrangement having a deactivatable cam

Details Camshaft arrangement having a deactivatable cam Camshaft arrangement having a deactivatable cam

1993-04-28

1994-07-26

Bonck, Rodney H.

Machine element or mechanism

Elements

Cams

123 9017, 123 9032, 123198F, F01L 104, F16H 5300

Patent

active

053318668

ABSTRACT:
A camshaft has a deactivatable cam which is selectively couplable to or releasable from the camshaft by a coupling pin which is transversely displaceable in a recess in the camshaft. To move the coupling pin between its connecting position, in which it engages a coupling recess in the cam, and its release position, in which it is retracted within the confines of the camshaft, the face of the coupling pin opposite the coupling recess forms a pressure chamber in which variable pressure is controlled by a displaceable control piston. A high pressure is applied to move the coupling pin into its connecting position and a lower pressure is applied to maintain the coupling pin in the connecting position, while a further reduced pressure is applied to retract the coupling pin into its release position.

REFERENCES:
patent: 4404937 (1983-09-01), Leitermann
patent: 4788946 (1988-12-01), Inoue et al.
patent: 4844022 (1989-07-01), Konno
patent: 4887563 (1989-12-01), Ishida et al.
patent: 5099806 (1992-03-01), Murata et al.
patent: 5239885 (1993-08-01), Voight

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