Patent · US Active

System and method for valve seat gap evaluation

US8274053B2 · kind B2 · utility

0Cited by

4References

20Claims

0Family size

Assignee

GM GLOBAL TECHNOLOGY OPERATIONS LLC · US

Inventors

Lee B. Moonen · Clarkston, US
John S. Agapiou · Rochester Hills, US
Daniel L. Simon · Glendale, US

Key dates

Filing date	Feb 24, 2010
Grant date	Sep 25, 2012
Priority date	—
Expiry date	Feb 10, 2031

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF01L2800/17
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.