Apparatus for tying moving blades

Details Apparatus for tying moving blades Apparatus for tying moving blades

1974-11-27

1976-11-09

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Lashing between working members or external bracing

Connecting adjacent work surfaces

F01D 522

Patent

active

039908135

ABSTRACT:
The annular array of radially extending blades on the rotor of a rotary fluid machine are tied together at generally their mid portions by interlocking separate tying members and projection pairs, wherein each projection pair includes facing projections on adjacent blades of the array. The tying members and projections have mating bearing surfaces that will provide a tangential force as a result of wedging produced by the centrifugal force acting upon the tying members during rotation of the rotor at rated speed, without restraining individual twisting of the blades about their radial extent.

REFERENCES:
patent: 1423466 (1922-07-01), Snyder
patent: 1469901 (1923-10-01), Gilson
patent: 1554614 (1925-09-01), Allen
patent: 2942843 (1960-06-01), Sampson
patent: 3396905 (1968-08-01), Johnson
patent: 3451654 (1969-06-01), Johnson
patent: 3719432 (1973-03-01), Musick et al.
patent: 3728044 (1973-04-01), Fujita et al.
patent: 3752599 (1973-08-01), Pace

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