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:
Apr. 19, 2011
Filed:
Dec. 13, 2007
Martin W. Dirker, Bourne, GB;
Martin W. Dirker, Bourne, GB;
Perkins Engines Company Limited, Peterborough, GB;
Abstract
A system for controlling fluid flow to or from a cylinder of an internal combustion engine is disclosed. The system includes a drive shaft having a rotary valve mounted thereon. The system also includes a cylinder head a cylinder head accommodating the rotary valve and at least part of the drive shaft therein, the rotary valve being arranged to selectively open or close a flow opening in the cylinder head. The system also includes a source of rotation and a mechanical drive train rotatably coupling the source of rotation to the drive shaft. The mechanical drive train has a non-circular element rotatably coupled to the source of rotation and a non-circular element rotatably coupled to the drive shaft. The non-circular elements are rotatably coupled to cause a speed variation in one of the non-circular elements upon a constant rotation of the other non-circular elements.