METHOD FOR OPERATING A DUAL FUEL ENGINE

摘要

A method for removing excess air from a gas receiver (9) of a dual fuel reciprocating engine before changing fuel mode from a liquid fuel mode to a gas mode, which dual fuel reciprocating engine comprises a separate gas feed valve (17) for each engine cylinder (1), which gas feed valve (17) is arranged to feed gaseous fuel from the gas receiver (9) into an inlet port (10) of an engine cylinder (1) during the gas mode operation. In the method liquid fuel is fed into the cylinders (1) and gaseous fuel is fed from a gas source (8) into the gas receiver (9) via a gas inlet line (12). Before changing fuel mode from the liquid fuel mode to the gas mode at least one gas feed valve (17) is opened for removing air from the gas receiver (9).