LNG A Fuel Gas Supply High Pressure Pumping Apparatus of Liquefied Natural Gas with Unify of Maine Power and Auxiliary Power

摘要

The present invention simplifies the structure of the ME-GI engine by driving the main pumping cylinder and the preliminary pumping cylinder to supply the LNG fuel by pressurizing the LNG fuel. In addition, A LNG fueling engine high pressure pumping apparatus for pumping and pressurizing LNG fuel to an engine, comprising: a main and reserve pumping cylinder group, each comprising a plurality of piston type main and reserve pumping cylinders; A main and preliminary drive shafts to which the main and reserve piston rods of the piston type main and the spare pumping cylinders are respectively connected; Clutch gear means connected to the main drive shaft and the auxiliary drive shaft for transmitting power of the drive source to the main drive shaft or the spare drive shaft selected from the main drive shaft and the auxiliary drive shaft; And the main drive and the preliminary drive are integrated, and the LNG fuel supply high-pressure pumping device is provided.