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:
Jul. 14, 2009
Filed:
Nov. 15, 2007
John Cullen, Mequon, WI (US);
Mike Youakim, Wauwatosa, WI (US);
Christopher Monaco, Antioch, IL (US);
Jason Youd, Mooresville, NC (US);
Ron Check, Brighton, MI (US);
John Cullen, Mequon, WI (US);
Mike Youakim, Wauwatosa, WI (US);
Christopher Monaco, Antioch, IL (US);
Jason Youd, Mooresville, NC (US);
Ron Check, Brighton, MI (US);
Harley-Davidson Motor Company Group, LLC, Milwaukee, WI (US);
Abstract
A cylinder head assembly for an internal combustion engine including a cylinder head at least partially defining a flow path through the engine, including an intake port, an exhaust port, and a combustion chamber disposed between the intake port and the exhaust port. A valve is coupled to the cylinder head and movable relative to the cylinder head to selectively open the combustion chamber to one of the intake port and the exhaust port. A valve spring is positioned between the valve and the cylinder head and biases the valve to a closed position. A thermally insulating washer is positioned between the cylinder head and the valve spring.