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Rotor disk cover plate attachment

  • US 4,558,988 A
  • Filed: 12/22/1983
  • Issued: 12/17/1985
  • Est. Priority Date: 12/22/1983
  • Status: Expired due to Term
First Claim
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1. A device for securing a blade retaining plate to a rotor disk wherein said disk includes a forwardly facing annular groove, said groove having a forwardly facing annular bottom surface and an inwardly facing cylindrical surface and an outwardly facing cylindrical surface, said outwardly facing cylindrical surface having an outwardly facing annular groove therein spaced forwardly from said bottom surface, the inner end of said blade retaining plate having an off-set annular flange, said off-set annular flange having a forwardly facing annular face and a rearwardly facing annular face, said blade retaining plate having an outwardly facing cylindrical surface outwardly of said off-set annular flange, said outwardly facing cylindrical surface of said blade retaining plate engaging said inwardly facing cylindrical surface of said forwardly facing annular groove, said off-set annular flange having its rearwardly facing annular face positioned against the annular bottom surface of said forwardly facing annular groove, a split retainer ring being positioned in said outwardly facing annular groove and projecting outwardly thereof into the forwardly facing annular groove where it engages the forwardly facing annular face of the off-set annular flange to maintain it in said forwardly facing annular groove, a locking means being positioned between said split retainer ring and said blade retaining plate to maintain said split retainer ring in said outwardly facing annular groove.

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