Gas metering valve for internal combustion engines

A gas metering valve for an internal combustion engine, comprising:

• a housing;
• a gas chamber situated in the housing and including an inlet opening and an outlet opening;
• a movable valve element situated in the gas chamber and movable by an electrical actuator against the force of a return spring, and which cooperates with a valve seat for opening and closing the inlet opening;
• a blocking valve situated between the valve element and the outlet opening, which is able to interrupt a gas flow in the gas chamber between the valve element and the outlet opening;
• and
• a coupler sleeve guided inside the housing in a longitudinally displaceable manner downstream from the valve element,
• wherein an attenuation space is delimited to an inside by the coupler sleeve and is formed between the valve element and a shoulder in the housing,
• wherein the attenuation space is connected to the gas chamber via a first annular gap between the valve element and the housing and a second annular gap between the coupler sleeve and the housing.