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:
May. 01, 1979
Filed:
May. 12, 1978
Robert S Mueller, Birmingham, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An engine valve control mechanism for varying the amount of opening and/or timing of cylinder valve in a valve gear train of a multi-cylinder, internal combustion engine having an overhead camshaft which actuates the valve via a rocker arm pivotally bridged between the valve stem and a hydraulic lash adjuster. In one engine embodiment of the invention the valve gear train portion for each intake valve is provided with a valve control mechanism of the invention by providing a camshaft having a high lift lobe and two low lift lobes for actuating the valve and by providing a valve rocker arm including a rigid link defining a first cam follower for following the low lift lobes and a second cam follower pivotally connected to the rigid link for following the high lift lobe. A latch carried by the rigid link is operative in a first position to prevent pivotal movement of the second follower relative to the rigid link, whereby the valve is actuated by the high lift lobe, and operative in a second position to allow such pivotal movement, whereby the valve is actuated by the low lift lobes. In a second embodiment the low lift lobes are removed, whereby the valves are disabled when the latch is in the second position.