초록 ▼

A dual fuel compression ignition engine (10) comprises a gas fuel supply system (20-25) for the engine (10), and a diesel fuel supply system (12-16) for the engine, including an injection pump (11) having a governor and a control member to control the amount of diesel fuel injected into the engine b

A dual fuel compression ignition engine (10) comprises a gas fuel supply system (20-25) for the engine (10), and a diesel fuel supply system (12-16) for the engine, including an injection pump (11) having a governor and a control member to control the amount of diesel fuel injected into the engine by the pump (11), and means (13′) to arrest movement of the control member (11a) in the direction to increase the supply of diesel fuel to the engine, at a position to supply pilot fuel at a constant, or substantially constant, rate, the position for arrest being determined in accordance with at least one operating condition of the engine, such as the engine speed. Another embodiment shows a present rail system. In both, the amount of pilot diesel fuel is adjusted by a feed-back signal indicative of the amount of pilot fuel injected.

대표청구항 ▼

A dual fuel compression ignition engine having a gas fuel supply system for the engine to supply gaseous fuel to the engine at a variable rate whereby the speed of the engine is continuously variable, a diesel fuel supply system for the engine including an injection pump and an injector system, a co

A dual fuel compression ignition engine having a gas fuel supply system for the engine to supply gaseous fuel to the engine at a variable rate whereby the speed of the engine is continuously variable, a diesel fuel supply system for the engine including an injection pump and an injector system, a control means to control the amount of pilot diesel fuel injected into the engine, a first means to provide a first input to the control means to cause the control means to supply pilot fuel at a variable predetermined rate, said rate being varied in accordance with at least one operating parameter of the engine and second means to provide a second input to said control means from a feed-back signal indicative of the amount of pilot diesel fuel injected into the engine and the control means being adapted to adjust the supply of the pilot fuel to correspond to that signalled by the first input.