To provide a gas engine fuel supply device having simple construction with one fuel valve for performing flow control with high accuracy corresponding to various types of fuel different in heating value.
A rotary fuel valve 6 is rotated in a valve chamber 2 via the housing of a sliding motor 9 and a rod member 8 with the drive of a rotating motor 13 so that the effective area of the outlet opening of the rotary fuel valve 6 is smaller when using fuel having a high heating value and that the effective area of the outlet opening of the rotary fuel valve 6 is larger when using fuel having a low heating value. An ECU 15 adjusts the effective area of the outlet opening of the rotary fuel valve 6 by changing the step number of the sliding motor 9 corresponding to the operated condition of a gas engine seized with an engine speed signal and a load signal from the gas engine to axially slide the rotary fuel valve 6 relative to a center axis C of the valve chamber 2.
Michiharu Soga
Hidetoshi Furukawa
Suzuki Kenchi
Kajinami order
Next Patent: PREMIXTURE COMPRESSION HYPERGOLIC COMBUSTION ENGINE