2 FUEL OR LUBRICATION PUMP FOR A LARGE TWO-STROKE COMPRESSION-IGNITED INTERNAL COMBUSTION ENGINE

摘要

The present invention relates to a pump for supplying fuel or a lubricant to a large two-stroke compression-ignited internal combustion engine. The pump (40) comprises two or more pump units (41, 42, 43). Each of the pump units (41, 42, 43) comprises a pump piston (62) slidably disposed in a pump cylinder (61) and a hydraulically powered drive piston (46) slidably disposed in a drive cylinder (45) with the drive piston (46) coupled to the pump piston (62) for driving the pump piston (62).