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Rotor assembly

  • US 3,165,294 A
  • Filed: 12/28/1962
  • Issued: 01/12/1965
  • Est. Priority Date: 12/28/1962
  • Status: Expired due to Term
First Claim
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1. A BLADED ROTOR ASSEMBLY FOR AN AXIAL FLUID FLOW MACHINE COMPRISING A GENERALLY CYLINDRICAL BLADE HOLDING MEMBER, SAID BLADE HOLDING MEMBER HAVING CIRCUMFERERTIALLY CONTINUOUS WALLS DEFINING AT LEAST ONE CIRCUMFERENTIALLY EXTENDING DOVETAIL SHAPED SLOT IN THE PERIPHERY THEREOF, A PLURALITY OF BLADES ALL HAVING IDENTICALLY SHAPED DOVETAIL ROOTS SLIDABLY RECEIVED IN SAID SLOT, SAID BLADE ROOTS CIRCUMFERENTIALLY FILLING SAID SLOT WITH ADJACENT ROOTS IN ABUTTING RELATIONSHIP, THE DOVETAIL SHAPES OF SAID SLOT AND SAID BLADE ROOTS BEING SUCH THAT THE ROOTS ARE RESTRAINED AGAINST RADIAL MOVEMENT WITH RESPECT TO SAID BLADE HOLDING MEMBER, A LOADING RECESS IN THE RADIALLY INWARD SURFACE OF THE SLOT, A SELECTED ONE OF SAID BLADE ROOTS POSITIONED IN SAID SLOT RADIALLY OUTWARD OF SAID LOADING RECESS, AND LOCKING MEANS ENGAGING THE RADIALLY INWARD PORTION OF SAID SELECTED BLADE ROOT TO MAINTAIN SAID SELECTED BLADE ROOT IN SAID SLOT AND TO PREVENT CIRCUMFERENTIAL MOVEMENT OF SAID PLURALITY OF BLADE ROOTS IN SAID SLOT.

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