Natural gas leak detection through pressure loss in pneumatic starter and prelube
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United States of America Patent
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Oct 3, 2017
Grant Date -
Dec 22, 2016
app pub date -
Jun 17, 2016
filing date -
Jun 17, 2015
priority date (Note) -
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Abstract
An internal combustion engine, a method of operating the internal combustion engine, and a controller are disclosed. The method may comprise measuring a first pressure at a first position in a fluid line containing pressurized fluid; comparing the first pressure to a first threshold; in response to the first pressure exceeding the first threshold, transmitting a signal to depressurize the fluid line; after transmitting the signal to depressurize the fluid line, measuring a second pressure in the fluid line and comparing the second pressure to at least one of a second threshold and a third threshold, the second threshold being greater than the third threshold and less than the first threshold; and in response to the second pressure being less than the second threshold and exceeding the third threshold, transmitting another signal to depressurize the fluid line.
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