Device and method for reducing the temperature of a pressure vessel by means of latent heat from liquefied petroleum gas (LPG) evaporation

摘要

Device for reducing the temperature of a pressure vessel (110) which stores liquid gas (LPG) fuel and is connected to a fuel supply line (112) for supplying the fuel to an injection nozzle (101) by means of latent heat from LPG evaporation, the device comprising : a fuel pump (111) installed in the pressure vessel (110) and connected to one end of the fuel supply line (112) for pressurizing the fuel; a shut-off valve (116) installed in the fuel supply line (112) for selectively cutting off the fuel supply installed to the injector (101); a fuel manifold (105) extending from the fuel supply pipe (112) to the inside of the pressure vessel (110) for collecting the pressurized fuel in the pressure vessel (110) when the shut-off valve (116) is closed , is branched off; a spray nozzle (115) which is connected to the fuel supply line (112) and via the fuel fuel collector (105) injects collected fuel into the inside of the pressure vessel (110) so that the LPG fuel evaporates; and a pressure relief valve (114) installed in the fuel manifold (105) for supplying the fuel to the spray nozzle (115) at an elevated pressure.