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:
Nov. 14, 2006
Filed:
Nov. 21, 2005
Timothy Mark Lancefield, Shipston on Stour, GB;
Nicholas James Lawrence, Buckingham, GB;
Ian Methley, Witney, GB;
Mark Andrew Richard Walton, Bicester, GB;
Timothy Mark Lancefield, Shipston on Stour, GB;
Nicholas James Lawrence, Buckingham, GB;
Ian Methley, Witney, GB;
Mark Andrew Richard Walton, Bicester, GB;
Mechadyne PLC, Oxfordshire, GB;
Abstract
A valve operating mechanism is described for an internal combustion engine in which at least one valve () of an engine cylinder is operated by two cams (). The cams () have respective cam followers () which are resiliently biased to remain in contact with the cams () at all times and which act on the valve () by way of a summation linkage () in such a manner that the displacement of the valve () at any instant is determined by a combination of the displacements of the two cam followers (). In the invention, movement of each of the two cam followers () is transmitted to the summation linkage () by way of a respective one of two pushrods ().