Fuel supply system for marine diesel engine, has marine diesel engine which return backs fuel to mixing tank to draw fuel at preset volume flow which is greater than different volume flow, so that operation of engine is changed

摘要

The system (1) flows heavy oil fuel and distillate fuel from fuel tanks (12,13) in the direction of mixing tank (14) and circulates oil fuel and distillate fuel in a feeder fuel circuit (4). A pump unit (21) flows fuel from mixing tank towards marine diesel engine (2,3) with second volume flow which is greater than the first volume flow. Diesel engine return backs fuel to the mixing tank and draws fuel from fuel tank (13) at third volume flow which is greater than the first volume flow, such that operation of the diesel engine is changed from first fuel type to second type. An independent claim is included for method for operating fuel supply system.