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:
Jul. 16, 1991
Filed:
Jun. 23, 1988
Applicant:
Inventor:
Tsuneo Konno, Saitama, JP;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9016 ; 123 9017 ;
Abstract
A valve operating device for an internal combustion engine in which a selective coupling mechanism is operable to control the lift and opening interval of the valve includes a hydraulically operated phase adjusting mechanism disposed between the timing wheel and the camshaft to effect relative angular movement therebetween for timing control of valve operation.