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Rotary motor

  • US 4,232,991 A
  • Filed: 05/30/1978
  • Issued: 11/11/1980
  • Est. Priority Date: 05/30/1978
  • Status: Expired due to Term
First Claim
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1. In a rotary motor, the rotor of which is propelled by a jet of high-pressure fluid propellant, the combination which comprisesan annular rotor consisting of a ring having a diameter much greater than its thickness and its width, and a roughened annular surface;

  • a housing having a smooth annular surface apposed to said roughened annular surface and uniformly spaced therefrom in all directions;

    bearing means for rotatably supporting said annular rotor consisting of apposed annular races separated by rolling means and united in freely rotating, inseparable relation one to the other and to said rolling means, said bearing means having an inside diameter at least equal to the inside diameter of said annular rotor and having one race affixed to said housing and the other race affixed to said rotor; and

    jet orifices arranged to direct a plurality of jets of high-pressure fluid propellant into the space between the apposed surfaces of said rotor and said housing at spaced intervals about the periphery thereof and so oriented that at least a portion thereof impinges on said roughened surface at an acute angle, said housing and said rotor having apposed spaced-apart surfaces forming a peripheral passageway communicating with the space between said first-named apposed surfaces and the ambient atmosphere, whereby said jets fan out from the point of impact on the rotor to said peripheral passageway before reaching the next jet.

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