Measuring and testing – Internal combustion engine or related engine system or... – Compression
Reexamination Certificate
2011-07-12
2011-07-12
McCall, Eric S (Department: 2855)
Measuring and testing
Internal combustion engine or related engine system or...
Compression
C073S114180
Reexamination Certificate
active
07975533
ABSTRACT:
In a monitoring system and method for monitoring pressure in a combustion chamber of an internal combustion engine, a sensor is operable to sense movement of a valve while the valve is in its closed position. The sensor generates data indicative of the sensed movement of the valve. A control system is in communication with the sensor to receive the data indicative of the sensed movement of the valve in the closed position thereof. The control system is operable to determine the pressure in the combustion chamber based at least in part on the sensed movement of the valve. In other aspects, operation of the engine is adjusted based at least in part on the determined pressure in the combustion chamber.
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Author Unknown, BERU AG, Future potential: PSG pressure sensor glow plug from BERU facilitates optimum combustion, http://www.beru.com/english/aktuelles/presse/20080131-PI274.php, Jan. 31, 2008, 2 pages.
Author Unknown, Multi-VIT multi-purpose position sensing, KAMAN NonContact Position Measuring Systems, 4 pages, 2000 Kaman Corporation, USA.
Armstrong Teasdale LLP
McCall Eric S
Wisconsin Alumni Research Foundation
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