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:
Mar. 01, 2011
Filed:
Oct. 26, 2007
Timothy Mark Lancefield, Shipston On Stour, GB;
Ian Methley, Witney, GB;
Nicholas James Lawrence, Buckingham, GB;
Timothy Mark Lancefield, Shipston On Stour, GB;
Ian Methley, Witney, GB;
Nicholas James Lawrence, Buckingham, GB;
Mechadyne PLC, Kirtlington, GB;
Abstract
An internal combustion engine has intake () and exhaust () poppet valves, a first and a second set of cam lobes () for operating the intake and exhaust poppet valves () respectively, and a third set of cam lobes () for producing an additional selectable valve event in order to allow the engine to operate as a compression brake. The third set of cam lobes () and at least one of the first and second set of cam lobes () are rotatable relative to one another and form part of an assembled camshaft () so as to be rotatable about a common axis. A phasing system () acts on the assembled camshaft () to allow the phase of the third set of cam lobes () to be changed relative to the engine crankshaft.