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Vane pump

  • US 20060073027A1
  • Filed: 09/28/2005
  • Published: 04/06/2006
  • Est. Priority Date: 10/06/2004
  • Status: Active Grant
First Claim
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1. A vane pump, comprising:

  • a body including a body bore therein;

    a cover contacting the body to close the body bore, the cover being arranged to have a concave portion therein opened at a side of the body;

    a cam ring arranged to be in close contact with an inner peripheral surface of the body bore;

    a cylindrical rotor incorporated inside the cam ring and arranged to be co-axial with the cam ring;

    a plurality of vanes inserted into a plurality of vane grooves formed in a radial direction of the rotor;

    a rotating shaft penetrating axially through the rotor, wherein the rotating shaft has one end supported by a bearing hole disposed in the concave portion and rotates by a driving force of a drive source to rotate the rotor;

    a bearing supporting the rotating shaft, the bearing being disposed inside the body;

    a first side plate including a central bore and fitted into the concave portion;

    a bearing convex portion arranged so as to be raised from a bottom of the concave portion to form the bearing hole and fitted into the central bore of the first side plate; and

    a first locating pin standing from the bottom of the concave portion, penetrating through the first side plate, and inserted into the cam ring.

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