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Motor driven pumps

  • US 3,163,790 A
  • Filed: 11/10/1961
  • Issued: 12/29/1964
  • Est. Priority Date: 11/10/1961
  • Status: Expired due to Term
First Claim
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1. A HEAT EXCHANGE SYSTEM FOR A MOTOR DRIVEN PUMP HAVING A MOTOR HOUSING WITH CYLINDRICAL SLEEVE LONGITUDINALLY AXIALLY MOUNTED THEREIN AND SEPARATING A MOTOR STATOR CHAMBER FROM AN INTERIOR MOTOR ROTOR CHAMBER, A MOTOR ROTOR IN SAID MOTOR ROTOR CHAMBER HAVING A CLEARANCE WITH RESPECT TO SAID SLEEVE FOR COOLING FLUID FLOW, A SHAFT ON WHICH SAID MOTOR ROTOR IS MOUNTED, SAID SHAFT HAVING A CENTRAL LONGITUDINAL PASSAGEWAY THEREIN FOR COOLING FLUID FLOW, A MOTOR HOUSING CLOSURE AT ONE END OF SAID SLEEVE HAVING A BEARING FOR SAID SHAFT, A HEAT EXCHANGER MOUNTED ON AND LONGITUDINALLY AXIALLY DISPOSED WITH RESPECT TO SAID MOTOR HOUSNG CLOSURE HAVING HEAT EXCHANGE ELEMENTS THEREIN IN COMMUNICATION WITH SAID MOTOR ROTOR CHAMBER AND WITH THE INTERIOR OF SAID SHAFT LONGITUDINALLY THROUGH SAID MOTOR HOUSING CLOSURE, A FLUID CONNECTION FOR SUPPLYING FLUID FOR COOLING SAID HEAT EXCHANGE ELEMENTS, A FLUID DELIVERY CONNECTION FOR THE DELIVERY OF COOLING FLUID FROM SAID HEAT EXCHANGER, AND MEMBERS INTERIORLY DISPOSED IN SAID SLEEVE AND CONTIGUOUS TO THE OTHER END OF SAID SLEEVE FOR IMPELLING FLUID IN SAID CLEARANCE AND THROUGH SAID EXCHANGE ELEMENTS AND SAID SHAFT PASSAGEWAY.

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