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Radial turbine

  • US 8,845,278 B2
  • Filed: 01/18/2012
  • Issued: 09/30/2014
  • Est. Priority Date: 01/27/2011
  • Status: Active Grant
First Claim
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1. A radial turbine comprising:

  • a turbine wheel that is provided with a main pathway in which a blade height progressively increases while curving toward an axial direction from a radial direction, that converts swirling flow energy from a swirling fluid that flows into the main pathway from a main inlet positioned on an outer circumferential side and having a flow in the radial direction as the main component thereof into rotational motive power, and that expels the flow, whose energy has been released, in the axial direction,wherein a sub-inlet into which flows a fluid whose pressure differs from pressure of the fluid supplied from the main inlet is formed on a shroud side of the turbine wheel at a position separated from the main inlet in the radial direction and the axial direction; and

    a blade shape that forms the sub-inlet is such that, in a plane orthogonal to the axial line of the turbine wheel, a center line of the blade is inclined at a predetermined angle toward the rotation direction with respect to the radial direction.

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