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US 2015/0086342 A1Published application
Centrifugal pump for delivering liquids in a motor vehicle
AssigneeContinental Automotive GmbH
InventorPeter Köppler
Life of this patent
Estimating the term…
Abstract
In a centrifugal pump for delivering liquids in a motor vehicle, annular webs project into a gap seal between a housing part and a cover disc of a rotor. The webs are arranged on both components of the housing part and of the cover disc and delimit chambers which accelerate, decelerate and divert a flow. In this way, the gap seal has a high throttling action.
Claims9
1-8. (canceled)
A centrifugal pump (1) for delivering liquids in a motor vehicle, comprising:
- a housing (8) delimiting an intake duct (10) and an outlet duct (11);
- a driven rotor (9) configured to rotate in the housing (8) and having rotor blades (14), which project from a supporting disk (13) of the driven rotor (9), and having a cover disk (15), which connects free ends of rotor blades (14);
- a housing part (16) of the housing (8) arranged opposite the cover disk (15);
- a gap seal (17) arranged between the cover disc (15) and the housing part (16);
- and
- a plurality of projecting annular webs (22-24, 28, 29) arranged in the gap seal (17), at least one of the plurality of projecting annular webs (22, 23) being arranged on the cover disk (15) and at least one of the plurality of projecting annular webs (24) being arranged on the housing part (16), the at least one annular web (24) arranged on the housing part (16) being offset relative to the at least one annular web (22, 23) arranged on the cover disk (15).
3 more elements
Dependencies are inferred from the claim text.