Measuring and testing – With fluid pressure – Leakage
Reexamination Certificate
2007-03-27
2007-03-27
Williams, Hezron (Department: 2856)
Measuring and testing
With fluid pressure
Leakage
C702S051000
Reexamination Certificate
active
09165772
ABSTRACT:
A method and sensor or sensor subsystem permit improved evaporative leak detection in an automotive fuel system. The sensor or sensor subsystem computes temperature-compensated pressure values, thereby eliminating or reducing false positive or other adverse results triggered by temperature changes in the fuel tank. The temperature-compensated pressure measurement is then available for drawing an inference regarding the existence of a leak with reduced or eliminated false detection arising as a result of temperature fluctuations.
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Cook John E.
Perry Paul D.
Miller Rose M.
Siemens Canada Limited
Williams Hezron
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