Fluid circuit with a primary stream filter and a bypass stream centrifuge

  • US 5,693,217 A
  • Filed: 08/30/1995
  • Issued: 12/02/1997
  • Est. Priority Date: 08/30/1994
  • Status: Expired due to Term
First Claim
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1. A hydraulic fluid circuit comprising a primary stream, a pump for pumping hydraulic fluid through said circuit, a filter disposed on said primary stream, a bypass line which is connected to said primary stream and which avoids said filter, a centrifuge disposed on the bypass line, and a pressure regulator comprising a two stage valve arranged between the filter and the centrifuge for opening the bypass line when a minimum response pressure for the centrifuge is attained in the fluid circuit, and for maintaining a maximum pressure in the fluid circuit, wherein said centrifuge comprises a rotor comprising a cylindrical vessel with at least one propulsion nozzle through which fluid exits the vessel to drive the rotor.

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