Combustion pressure sensor

Details Combustion pressure sensor Combustion pressure sensor

G - Physics

01

L

73/67

G01L 9/08 (2006.01) G01L 23/10 (2006.01)

Patent

CA 2013127

This invention is an annular sensor that measures combustion chamber pressure in an internal combustion engine. The sensor is located in an engine component opening, such as a spark plug well, and is engaged with first and second walls that define the ends of the opening. The first wall is located near the combustion chamber and flexes in response to varying combustion chamber pressure. The second wall is located away from the combustion chamber and remains relatively rigid. Movement of the first wall relative to the second wall due to varying combustion chamber pressure transmits a load to the sensor. The sensor generates an output signal that corresponds to that load which may subsequently be used to control engine functions.

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