Daniel J Simon

US Patent:

8274053, Sep 25, 2012

Filed:

Feb 24, 2010

Appl. No.:

12/711549

Inventors:

Lee B. Moonen - Clarkston MI, US
John S. Agapiou - Rochester Hills MI, US
Daniel L. Simon - Rochester MI, US

Assignee:

GM Global Technology Operations LLC - Detroit MI

International Classification:

G01J 5/02

US Classification:

2503416

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.

US Patent:

20120265458, Oct 18, 2012

Filed:

Apr 13, 2011

Appl. No.:

13/085773

Inventors:

John S. Agapiou - Rochester Hills MI, US
Daniel L. Simon - Rochester MI, US
John Patrick Spicer - Plymouth MI, US
Edward Panozzo - Mokena IL, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATONS LLC - Detroit MI

International Classification:

G01R 31/02

US Classification:

702 59

Abstract:

A method for diagnosing a fault in an electrical component using a diagnostic system having a plurality of sensors. The method includes positioning the electrical component in a predetermined position adjacent the diagnostic system and at a predetermined orientation with respect to the diagnostic system. The method also includes causing a predetermined level of electrical current to flow to the electrical component, the stationary sensors sensing electrical discharge emitted by the electrical component at an area of the fault, and the tangible computerized controller receiving sensor data from the sensors. The method further includes the tangible computerized controller executing the computer-readable instructions to process the sensor data to generate test information including a location of the electrical component at which the fault is occurring in at least two dimensions.

US Patent:

20130075371, Mar 28, 2013

Filed:

Sep 22, 2011

Appl. No.:

13/240449

Inventors:

Urban J. De Souza - Rochester Hills MI, US
Edward Panozzo - Mokena IL, US
Daniel L. Simon - Rochester MI, US
John S. Agapiou - Rochester Hills MI, US
Xiaoling Jin - Farmington Hills MI, US

Assignee:

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

International Classification:

B23K 11/24

US Classification:

219109

Abstract:

A method and system for non-destructive evaluation of one or more welds of a stator includes activating the stator welds using an electrical current; recording radiometric thermal images of the welds over time; and analyzing a temperature-time profile of a weld to qualify the weld by one or more of estimating the size of the weld, determining if the temperature of the activated weld has exceeded a predetermined temperature at a predetermined time, or comparing the temperature-time profile of the weld to a reference. The stator may be configured as a bar wound stator. A mask may be applied to the stator to reduce reflections or emissions from non-weld thermal sources.