Method for starting gas supply from a liquefied gas fuel system to a gas operated engine and a liquefied gas fuel system for a gas operated engine

摘要

The present invention relates to a method for starting gas supply from a liquefied gas fuel system (10) in which the fuel tank (12) is filled with liquefied gas by a filling procedure. Due to the filling procedure, the pressure in the tank (12) is at least the operating pressure required by the engine, and the pressure in the tank (12) in the present method is from the bottom of the tank (12) to the top of the tank (12). Results in being controlled by controlling the operation of the pressure augmentation system (22), including the pressure augmentation evaporator (22.2) located in the conduit (22.1) leading to. The pressure increase system (22) controls the flow rate of the evaporative gas in the conduit (22.1) while allowing the heat transfer medium to flow unconstrained by the pressure increase evaporator (22.2). Controlled by. Also, during refueling of the ship's tank, its pressure is reduced in the first stage by introducing liquefied fuel into the gas phase to allow movement, ending the second stage movement. Before doing so, liquefied fuel is introduced into the liquefied gas fuel to increase the pressure, thus meeting the pressure requirements of the engine.