The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 31, 1993
Filed:
Jun. 10, 1992
Applicant:
Inventor:
Dieter Voigt, Wolfsburg, DE;
Assignee:
Volkswagen AG, Wolfsburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ; F16H / ;
U.S. Cl.
CPC ...
74567 ; 123 9017 ; 123 9032 ;
Abstract
A space-saving camshaft with at least one cam which can be deactivated includes a coupling bolt which slides back and forth transversely in the camshaft to connect and disconnect the cam and the camshaft. A compression spring in the camshaft urges the bolt toward a coupling bore in the cam in the absence of a countervailing force and the bolt can be forced out of the coupling bore by increasing the pressure of hydraulic fluid in an adjacent compartment in the cam to disconnect the cam from the camshaft.