Electric motor with attached pump

  • US 5,326,235 A
  • Filed: 12/07/1992
  • Issued: 07/05/1994
  • Est. Priority Date: 02/21/1991
  • Status: Expired due to Fees
First Claim
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1. An electric motor connected with a pump, whereby the housing of the pump comprises a cylindrical insertion recess for a tappet-shaped stud of the motor housing which engages therein and whereby this stud additionally receives the first bearing, free from play, of the motor armature at the side of the pump and has an aperture for the armature and the motor driven shaft, wherein the housing of the motor is formed as a pot-shaped member deep drawn from a metal blank, the opening of the pot, facing away from the pump of said drawn member, is closed by a cover receiving the second bearing of the motor armature, and wherein, seen in the circumferential direction, the cross section of the wall of the stud, which protrudes from the bottom of the pot axially, is formed wave-like and has longitudinal flutes and which form fittingly engages into the insertion recess of the pump.

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