HUGE FUEL INJECTION SYSTEM AND HUGE COMPRESSED NATURAL GAS ENGINE THEREOF

摘要

PURPOSE: A large fuel injection system and a large CNG(Compressed Natural Gas) engine with the same are provided to commercialize the large CNG engine with an MPI(Multi Point Injection) by injecting a large amount of fuel with the MPI at once. CONSTITUTION: A large fuel injection system comprises a fuel distributor(1), intake manifolds(IM), first and second gas rails(10,20), and gas injectors. The intake manifolds form a passage in which outdoor air flows and are connected to multiple cylinders of an engine. The cylinders are divided into two groups. The first and second gas rails are in charge of the each cylinder group of the engine and are coupled to the intake manifolds. The gas injectors are arranged in the first and second guide rails to inject fuel into the intake manifolds. [Reference numerals] (AA) Connected to cylinders; (BB) Air; (CC) Fuel;