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:
Oct. 04, 1994
Filed:
Sep. 24, 1993
Clive Dopson, Norwich, GB;
Jeffrey Allen, Norwich, GB;
Group Lotus Plc, Norfolk, GB;
Abstract
The invention relates to a valve control system for a push-rod internal combustion engine. The valve control system includes a cam including a rotatable cam shaft having a first cam member and a second cam member having a different profile from the first raised portion. A reciprocating movement is transmitted by a rocker arm engaging the valve and a push-rod connected to a first cam follower in engagement with a push-rod operating a rocker arm and a second follower capable of movement relative to the first cam follower with locking device to enable the cam follower members to be linked so as to be moved together. When the cam follower members are not linked, the valve is controlled by the first cam follower in engagement with and following the profile of the raised portion and when the cam follower members are linked, the valve is controlled by the second cam follower in engagement with and following the profile of the second cam member, thus allowing the selection of one cam or another to accommodate different operating conditions of the engine.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile