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Radial blower, especially for heaters or air conditioning systems in vehicles

  • US 4,470,753 A
  • Filed: 09/26/1980
  • Issued: 09/11/1984
  • Est. Priority Date: 09/28/1979
  • Status: Expired due to Term
First Claim
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1. A radial blower, especially for heating or air conditioning systems of a motor vehicle, the blower comprisingdrive motor means having a back,a housing means having a back, said housing means accommodating the drive motor means,an air intake means provided in a front of the housing means,an air discharge means provided in a side of the housing means, anda fanwheel means adpated to be driven by the drive motor means, the fanwheel means comprising a hub means and fan blades, the axial ends of which are connected with one another by means of a fan ring,spoke means for connecting the fan ring to the hub means,a plurality of spaced openings in the spoke means,the spoke means forming a bundle of parallel connected springs for flexing in a circumferential direction of the fan wheel,further openings in at least one of the back of the housing means and the drive motor means, the further openings having a predetermined limited cross section for enabling a drawing in of a sufficient flow of cooling air,the fanwheel means is formed as a one piece part of a plastic material, andthe spoke means have a greater radial and axial material thickness than a circumferential material thickness.

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