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Vehicle wash apparatus with spinning nozzles

  • US 5,020,556 A
  • Filed: 01/18/1990
  • Issued: 06/04/1991
  • Est. Priority Date: 01/18/1990
  • Status: Expired due to Fees
First Claim
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1. A water nozzle assembly, comprising:

  • a stationary nozzle housing having an axis;

    a hollow shaft disposed axial within said housing forming water flow conduit therethrough with one end of said shaft extending from a first axial end of said housing;

    a pair of axially spaced bearings supporting said shaft for rotation about said axis;

    water inlet means for receiving pressurized water at a second axial end of said housing, said inlet communicating with said water flow conduit;

    means coupled to said one end of said shaft forming at least one water nozzle creating a water jet of said pressurized water as said water exits said nozzle assembly, said at least one nozzle having an outlet oriented relative to said axis so that water reaction forces acting on said at least one nozzle creates a moment about said axis;

    said housing forming an oil chamber surrounding said shaft with said bearings disposed in said oil chamber whereby oil in said chamber lubricates said bearings; and

    brake means for controlling the rotational speed of said shaft, said brake means including a pump for circulating oil in said chamber.

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