A large low-speed tubocharged two-stroke internal combustion engine with a dual fuel supply system

摘要

A large low-speed turbocharged two-stroke internal combustion engine of the uniflow type with crossheads (41). The engine has a plurality of cylinders (1) and is provided with a primary fuel supply system (24) operating with a first type of fuel and comprising a primary fuel tank (20) for the first type of fuel and primary fuel valves (7) for delivering the first type of fuel to the combustion chambers in the cylinders (1). The engine is also provided with a secondary fuel supply system (34) operating with a second type of fuel different from the first type of fuel, and with a secondary fuel tank (30) for a second type of fuel and with secondary fuel valves (8) for delivering the second type of fuel to the combustion chambers in the cylinders (1). The engine also has an electronic control unit (ECU,CCU) configured to control and operate the primary fuel system (24) and the secondary fuel system (34). The electronic control unit (ECU,CCU) is configured operate a selected number of the plurality of cylinders (1) with the second type of fuel via the secondary fuel system (34) and the electronic control unit (ECU,CCU) is configured to operate the remaining cylinders (1) of the plurality of cylinders (1) with the first type of fuel via the primary fuel system (24).;It is suggested that Fig. 4 is published with the abstract.