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SUBMERGED SURFACE CLEANING APPARATUS WITH ANGLED PUMPING IMPELLER

  • US 20110000033A1
  • Filed: 12/18/2008
  • Published: 01/06/2011
  • Est. Priority Date: 12/21/2007
  • Status: Active Grant
First Claim
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1. A device for cleaning an immersed surface comprising:

  • a hollow body and members for guiding and driving the body over the immersed surface in at least one direction and in a main direction of advance, called the longitudinal direction,a filtration chamber which is provided in the body and which has;

    at least one liquid inlet into the hollow body, located at the base of the body,at least one liquid outlet out of the hollow body, located remotely from the base of the hollow body,at least one hydraulic circuit which is capable of providing a flow of liquid between at least one liquid inlet and at least one liquid outlet through at least one filtering device,at least one liquid pumping device comprising a pumping motor having a rotating drive shaft which is coupled to at least one axial pumping propeller which is interposed in a hydraulic circuit in order to generate therein a flow of liquid between each liquid inlet and each liquid outlet which are connected by this hydraulic circuit,wherein;

    each liquid outlet is offset, in the longitudinal direction, from each liquid inlet with which it is in communication via a hydraulic circuit,each axial pumping propeller which is interposed in a hydraulic circuit between a liquid inlet and a liquid outlet has an inclined rotation axis forming, with said longitudinal direction, an angle which is not equal to zero and which is different from 90°

    , said axial pumping propeller being capable of generating a flow of liquid which is orientated along the axis thereof towards this liquid outlet, in a direction away from the base of the body.

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