Patent ID: 11873784
Assignee: ROBERT BOSCH GMBH
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F  Y | IPC F

Claim 0:
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.