INTAKE AIR COOLING SYSTEM AND CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an intake air cooling system capable of easily controlling a temperature of intake air to a temperature enabling reduction in nitrogen oxide.SOLUTION: An intake air cooling system 100 is configured to cool intake air supplied to a combustion chamber 111 by using liquefied gas fuel, such as dimethyl ether, burned in the combustion chamber 111 of an internal combustion engine 110. The intake air cooling system 100 enables liquefied gas fuel stored in a fuel tank 190 to be pressure-fed to an expansion valve 73 by using a pressure-feeding pump 72 and the pressure-fed liquefied gas fuel is vaporized by the expansion valve 73. The vaporized gas fuel is fed to an intake air cooler 74 so as to cool intake air flowing in an intake pipe 123. The gas fuel that has passed through the intake air cooler 74 is liquefied again by a compression pump 75.SELECTED DRAWING: Figure 1