Method for making a recuperator cell

Details Method for making a recuperator cell Method for making a recuperator cell

1997-08-27

1999-07-06

Cuda, Irene

Metal working

Method of mechanical manufacture

Heat exchanger or boiler making

29890034, B23P 1526

Patent

active

059183683

ABSTRACT:
Circular recuperators are used to increase the efficiency of gas turbine engines. The present circular recuperators is made of a plurality of cells. Each of the plurality of cells includes a plurality of components, such as, a plurality of sheets, a plurality of bars and guide strips. To more efficiently utilize the configuration of a primary surface circular heat exchanger or recuperator, the plurality of cells are manufactured to have a involute configuration. A fixture is used to position, hold and form the involute configuration. The fixture includes clamping device which positions and holds a base edge and the plurality of bars in a preestablished position and a forming member forms the remainder of the individual cells into the involute configuration. Corresponding ones of the base edges of individual cells form an inner diameter of the recuperator.

REFERENCES:
patent: 2558752 (1951-07-01), Holm
patent: 3285326 (1966-11-01), Wosika
patent: 3476174 (1969-11-01), Guernsey et al.
patent: 3507115 (1970-04-01), Wisoka
patent: 3759323 (1973-09-01), Dawson et al.
patent: 3785435 (1974-01-01), Stein et al.
patent: 4405011 (1983-09-01), Stockman
patent: 5119885 (1992-06-01), Johnson

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