High pressure direct injected gaseous fuel system and retrofit kit incorporating the same

摘要

A high-pressure direct injected gaseous fuel system comprising a fuel tank capable of storing fuel at a first pressure and a compressor including an inlet capable of receiving the fuel, and operative to supply, at an outlet, compressed fuel at a second pressure higher than the first. The system also includes an accumulator connected to the outlet and a plurality of injectors connected to the accumulator. The injectors are adapted to inject fuel directly into a combustion chamber. The system includes a pressure relief valve interconnecting the fuel tank and the outlet, wherein the pressure relief valve is operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure.

主权项

1. A high-pressure direct injected gaseous fuel system, comprising:
a fuel tank capable of storing fuel at a first pressure; a compressor comprising an inlet capable of receiving the fuel, and operative to supply, at an outlet, the fuel at a second pressure higher than the first pressure; an accumulator in fluid communication with the outlet to receive and to store the compressed gaseous fuel from the compressor and in fluid communication with the inlet through a pressure regulator to convey excess compressed gaseous fuel to the compressor; a pressure relief valve interconnecting the fuel tank and the outlet, and operative to allow fuel flow between the fuel tank and outlet if the second pressure exceeds a threshold pressure; and a plurality of injectors connected to the accumulator, wherein the injectors are adapted to inject the fuel directly into a combustion chamber.