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. 25, 2012
Filed:
Feb. 24, 2010
Lee B. Moonen, Clarkston, MI (US);
John S. Agapiou, Rochester Hills, MI (US);
Daniel L. Simon, Rochester, MI (US);
Lee B. Moonen, Clarkston, MI (US);
John S. Agapiou, Rochester Hills, MI (US);
Daniel L. Simon, Rochester, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method of detecting a gap between a valve seat insert and a port in a cylinder head may include heating the valve seat insert and the cylinder head and generating a thermal image of the valve seat insert and the cylinder head at an interface between the valve seat insert and corresponding port in the cylinder head housing the valve seat insert. The thermal image may be evaluated to determine the magnitude of a gap between the valve seat insert and the cylinder head based on a temperature at the interface between the valve seat insert and the cylinder head.