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US 5,163,809 AGranted
Spiral wound containment ring
AssigneePratt & Whitney Canada Corp.
InventorsYusuf V. Akgun, Eugene Gekht
Life of this patent
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Abstract
A spiral wound containment ring (b 20l ) is received within a radially inward facing channel (38) in an engine case (18).
Claims6
An outer containment ring for a rotor disposed within a concentric housing, comprising:
- an elongated resiliant strip, said strip being wound in a spiral to form a plurality of radial layers and being restrained radially within the housing, said strip further having an unrestrained outer diameter greater than the restrained diameter thereof.
A method of installing a spiral wound containment ring in an engine casing, said ring having an unrestrained outer diameter greater than the installed diameter of the ring, comprising the steps of:
- a. compressing the ring within an annular restraining hoop, the inner diameter of the restraining hoop being no greater than the installed diameter of the ring;
- b. locating the hoop and compressed ring adjacent the engine case;
- and
- c. releasing the ring from the radial restraint of the hoop and allowing the ring to expand into radial contact with the case.
1 more element
Dependencies are inferred from the claim text.