GAS DOSING VALVE FOR A DUAL FUEL ENGINE

The invention relates to a gas metering valve (1) for a dual-fuel engine (17), which has a displaceable sealing body (6) that closes the gas metering valve (1) in a position resting against a valve seat (5) and opens the gas metering valve (1) in a position lifted away from the valve seat (5). The gas metering valve (1) is operable in a gas operating mode in which the gas metering valve (1) meters fuel gas via a gas channel (13) into an intake manifold (15) of the dual-fuel engine (17), and in a liquid fuel operating mode in which the gas metering valve (1) remains sealingly closed against the pressure prevailing in the intake manifold (15). The valve seat (5) is arranged displaceably along a valve seat guide (4), wherein the valve seat (5) in the gas operating mode is pressed away from the sealing body (6) against a stop (20) in the gas metering valve (1) due to the fuel gas pressure in the gas channel (13) and is held in its operational position, and wherein the valve seat (5) in the liquid fuel operating mode is pressed sealingly against the sealing body (6) by the pressure in the intake manifold (15).