CPC F02M 21/0242 (2013.01) [F02M 21/0263 (2013.01); F02M 21/0293 (2013.01)] | 14 Claims |
1. 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.
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