Patent ID: 7735757

Claim:
A gaseous fuel injection valve, comprising: a valve housing; a metallic nozzle member which is fixedly mounted at one end of the valve housing and which has a flat valve seat and a nozzle bore passing through a central portion of the valve seat; a valve body which is slidably fitted in the valve housing and which is provided at one end face with a rubber seating member for opening and closing the nozzle bore in cooperation with the valve seat, the seating member being connected to the one end face of the valve body by baking; a coil supported in the valve housing; a stationary core which is connected to the valve housing and disposed inside the coil to be opposed the other end face of the valve body; and a return spring mounted under compression between the stationary core and the valve body so as to urge the valve body toward the valve seat, the stationary core attracting the valve body to move the seating member away from the valve seat when the coil is excited, wherein a fluorine resin valve seat coating is formed on the valve seat so that the seating member is brought into close contact with the valve seat coating, and wherein an annular rubber cushion member is provided on a surface of the valve body opposed to the stationary core, and a fluorine resin coating is formed on a surface of the stationary core opposed to the valve body so that the cushion member is brought into abutment against the coating when the coil is excited.