Control system for internal combustion engine and inert gas concentration detecting device for compressed natural gas
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United States of America Patent
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Dec 26, 2017
Grant Date -
Dec 11, 2014
app pub date -
Dec 19, 2012
filing date -
Dec 21, 2011
priority date (Note) -
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Abstract
In a control system that includes a pressure accumulating portion that supplies CNG to a fuel injection valve and a regulator that adjusts a pressure in the pressure accumulating portion to a set pressure and of which a valve element opens when CNG is supplied to the pressure accumulating portion and closes when supply of CNG to the pressure accumulating portion is shut off, a control parameter relating to a combustion state in an internal combustion engine is controlled on the basis of a length of a period during which an opening degree of the valve element reduces from a first predetermined opening degree to a second predetermined opening degree when the pressure in the pressure accumulating portion is adjusted to the set pressure by the regulator.
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