Pump with cutting wheel and pre-cutter
AssigneeBrinkmann Pumpen K.H. Brinkmann GmbH & Co. KG
InventorsGuido Sowa, Dirk Wenderott
Life of this patent
Estimating the term…
Abstract
A pump having a cutting wheel and a pre-cutter (26) for cutting chippings that are contained in the medium pumped by the pump, the pre-cutter being driven by a shaft portion that projects axially from the cutting wheel and having a plurality of wings (28), the pre-cutter being surrounded by a crest of anvil blocks (32) at which the free ends of the wings (28) move past in a little distance when the pre-cutter rotates, wherein the anvil blocks are configured as counter-blades (32) that are held exchangeably at a blade carrier (34) that surrounds the pre-cutter (26) at least on a part of its periphery.
Claims10
A pump comprising:
- a cutting wheel for cutting chippings that are contained in a medium pumped by the pump,
- a pre-cutter for cutting chippings that are contained in the medium pumped by the pump, the pre-cutter including a plurality of wings,
- a shaft portion which drives the pre-cutter and the shaft portion projects axially from the cutting wheel, and
- a crest of anvil blocks surrounding the pre-cutter such that free ends of the wings move past the anvil block with a little distance therebetween when the pre-cutter rotates, and the anvil blocks are configured as counter-blades that are held exchangeably at a blade carrier that surrounds the pre-cutter at least on a part of a periphery thereof,
- wherein the blade carrier is configured as a wall with a U-shaped cross-section that is open to one side of the pre-cutter.
A pump comprising:
- a cutting wheel for cutting chippings that are contained in a medium pumped by the pump,
- a pre-cutter for cutting chippings that are contained in the medium pumped by the pump, the pre-cutter including a plurality of wings,
- a shaft portion which drives the pre-cutter and the shaft portion projects axially from the cutting wheel, and
- a crest of anvil blocks surrounding the pre-cutter such that free ends of the wings move past the anvil block with a little distance therebetween when the pre-cutter rotates, and the anvil blocks are configured as counter-blades that are held exchangeably at a blade carrier that surrounds the pre-cutter at least on a part of a periphery thereof,
- wherein the blade carrier includes slot-shaped openings and the counter-blades are inserted into the slot-shaped openings of the blade carrier.
Dependencies are inferred from the claim text.