Grinding device for a drain pump
AssigneeFagor, S. Coop.
InventorXabier González Pagalday
Life of this patent
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Abstract
A grinding device for a drain pump on a dishwasher appliance includes moving elements that turn integrally with the impeller (5) of the pump (4) and fixed elements joined to the pump hydraulic body (2). The grinding is carried out by the combination of a blade (6), provided with a plurality of vanes, which turns integrally with the impeller (5) and a fixed support (7), provided with a plurality of apertures (7a), the gap between the blade (6) and the support (7) not being dependent on the fitting tolerances of the grinder assembly (1) in the hydraulic body (2) and the end play of the impeller (5).
Claims8
A grinding device for a drain pump in a dishwasher appliance, said drain pump comprising a hydraulic body and an impeller, said grinding device comprising:
- moving means which rotate integrally with said impeller, said moving means comprising a blade, a coupling bushing conforming to a shape of the impeller, and a shaft linking said blade to said coupling bushing, and
- fixed means comprising a guide bushing to receive said shaft and a support attached to the hydraulic body, said support having a plurality of apertures, and said blade being substantially parallel to said support;
- wherein
- said fixed means hold said moving means and a grinding process is carried out by cooperation of said blade with said support.
A grinding device for a drain pump in a dishwasher appliance, said drain pump comprising a hydraulic body and an impeller, said grinding device comprising:
- moving means which rotate integrally with the impeller, and
- fixed means joined to the hydraulic body;
- wherein
- a grinding process is accomplished by a blade with a plurality of vanes and a fixed support with a plurality of apertures, said blade rotating integrally with the impeller,
- a gap between said blade and said support not being dependent on fitting tolerances of elements of said grinding device and of an end play of the impeller;
- and wherein
- said moving means comprise a coupling bushing conforming to a shape of the impeller, said coupling bushing comprising grooves to receive vanes of the impeller, said moving means further comprising a shaft linking said blade to said coupling bushing, and
- said fixed means comprises a guide bushing that receives said shaft.
Dependencies are inferred from the claim text.