Stemmed blade for a flow-straightening stage of a gas turbine en

Details Stemmed blade for a flow-straightening stage of a gas turbine en Stemmed blade for a flow-straightening stage of a gas turbine en

1991-12-13

1993-08-17

Kwon, John T.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

4152093, F01D 500

Patent

active

052363040

ABSTRACT:
A stemmed blade for flow-straightener blading of a gas turbine engine comprises at least one shank at the head of the blade forming a stem for use in fixing the blade. The shank has a notched portion situated adjacent the head of the blade and an end portion separated from the notched portion by a zone of lower tensile strength. The fixing of the blade to the engine casing is carried out by fitting the blade in position with the shank projecting radially outwards through a hole in the casing and then crimping a bush on to the notched portion of the shank using a suitable crimping tool which exerts a compressive force on the bush while exerting a traction on the end of the shank until the zone of lower tensile strength breaks.

REFERENCES:
patent: 2197335 (1940-04-01), Bohan
patent: 3073569 (1963-01-01), Wagner
patent: 3325087 (1967-06-01), Davis
patent: 3521974 (1970-07-01), Zerlauth
patent: 4710097 (1987-12-01), Tinti
patent: 5062767 (1991-11-01), Worley et al.
patent: 5078576 (1992-01-01), Hayton

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