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:
Sep. 17, 2013
Filed:
May. 11, 2011
Ian Methley, Witney, GB;
Edward Hughes, Oxford, GB;
Ian Methley, Witney, GB;
Edward Hughes, Oxford, GB;
Other;
Abstract
A method is disclosed for assembling a valve operating system for opening and closing a poppet valve mounted on an engine cylinder head. The valve operating system comprises a camshafthaving two coaxial camsandfor operating the valvea summation levercoupled to followersof the two camsanda control springacting on the summation leverto urge one of the cam followersinto contact with the associated camand a valve actuating rockerpivotably connected to the summation leverand acting on the valveto open and close the valve in dependence upon the sum of the instantaneous lifts of the two camsandThe method comprises the steps of journaling the camshaftin a carriersecuring the cam summation leverto the carrierby means of the control springand securing the carrierto the engine cylinder head, the control springand the carrierserving to maintain the position of the cam summation leverduring assembly such that the valve actuating rockeris aligned correctly to engage with the valve