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Traction surface cooling method and apparatus

  • US 4,369,667 A
  • Filed: 07/10/1981
  • Issued: 01/25/1983
  • Est. Priority Date: 07/10/1981
  • Status: Expired due to Fees
First Claim
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1. In a traction drive torque transmission having a closed housing, an alpha body supported in said housing for rotation about a first axis, a beta body supported for relative rotation from said alpha body on a second axis inclined with respect to and intersecting said first axis at a point of axes intersection, said beta body defining a pair of conical traction surfaces concentric with said second axis, one on each side of said point of axes intersection, a pair of rings defining inside traction surfaces of revolution about said first axis and shiftable axially toward and away from each other, said conical traction surfaces being in rolling friction engagement with said inside traction surfaces at two diametrically opposite points of contact, the improvement comprising:

  • means carried rotatably by said alpha body to define clearance spaces extending arcuately through a defined sector of and adjacent to each said conical traction surfaces and said inside traction surfaces, respectively; and

    means for circulating a traction lubricant through both of said clearance spaces.

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