Patent ID: 11919018
Assignee: CONTINENTAL AUTOMOTIVE GMBH
Field: Chemical engineering (Chemistry)
Classification: CPC B  G | IPC B  G

Claim 0:
1. An apparatus for volume-controlled portioning of cleaning fluid, having a housing, having a cavity which is arranged in the housing and is able to be filled with the cleaning fluid, having at least one inflow channel which opens into the cavity and serves for feeding cleaning fluid into the cavity, having at least one outflow channel which opens into the cavity and serves for conveying cleaning fluid out of the cavity, and having a piston unit which is able to be moved in the cavity along a central axis and delimits a chamber in an actuation direction in the cavity and, from a non-actuated initial position, displaces the cleaning fluid from the chamber into the outflow channel during a forward movement in a pressure difference-actuated manner, and is moved back into the non-actuated initial position during a reverse movement, wherein the piston unit comprises a piston body and at least one valve device which is arranged on the piston body to close off the at least one inflow channel and which ensures that the chamber is filled with the cleaning fluid during the reverse movement of the piston unit, wherein the valve device has a valve body which is displaceable to a limited extent along the central axis relative to the piston body.