| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel supply device of an internal combustion engine which has a heat exchanger of engine cooling water and liquefied fuel, and can supply the liquefied fuel into a cylinder by favorably evaporating the fuel by the heat exchanger even if a temperature of the engine cooling water becomes high. <P>SOLUTION: There can selectively be performed fair current control for making the liquefied fuel pass through a liquefied fuel passage along the heat exchanger, and making the engine cooling water pass through an engine cooling water passage along the heat exchanger in the same direction as that of the liquefied fuel, and adverse current control for making the engine cooling water pass through the engine cooling water passage along the heat exchanger in a direction opposite to the liquefied fuel, the fair current control is selected when a degree of superheat ΔTU at the inlet side of the liquefied fuel passage of a heat exchanging wall is not higher than a set degree of superheat ΔTS in a range in which the liquefied fuel is transient-boiled at the inlet side of the liquefied fuel passage (step 103), and when the degree of superheat at the inlet side of the liquefied fuel passage is higher than the set degree of superheat, the adverse current control is selected. (step 104). <P>COPYRIGHT: (C)2013,JPO&INPIT |
