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PUMP UNLOADER VALVE AND ENGINE THROTTLE SYSTEM

  • US 20110142685A1
  • Filed: 12/16/2009
  • Published: 06/16/2011
  • Est. Priority Date: 12/16/2009
  • Status: Abandoned Application
First Claim
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1. A pressure washer system, comprising:

  • an engine having a throttle system configured to control the speed of the engine;

    a water pump comprising an inlet, a pumping mechanism, and an outlet, the pumping mechanism configured to be driven by the engine;

    a sprayer coupled to the outlet of the water pump;

    an unloader configured to direct water toward the inlet of the water pump when the unloader is in a first configuration, and to direct water toward the sprayer when the unloader is in a second configuration, wherein water pressure generated when the sprayer is not actuated moves the unloader to the first configuration; and

    a link coupling the unloader and the throttle system of the engine, wherein the link is configured to adjust the throttle system to a first engine speed when the unloader is in the first configuration, and to adjust the throttle system to a second engine speed when the unloader is in the second configuration.

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