Fluid turbine

Details Fluid turbine Fluid turbine

1996-03-08

1997-08-12

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Blades projecting axially from concavo-convex annular web

416197C, F01D 522

Patent

active

056558813

ABSTRACT:
A rotor disposed in a fluid retarder which includes a annular shell having a semicircular cross section and a plurality of blades, each blade being composed of a semicircular blade body and a rib bent from an arcuate edge of the blade body and fixed to an inside of the shell. The annular shell and the blades are composed of sheet metal. The blades are arranged at regular intervals in the circumferential direction of the shell and are welded into place. Because the annular shell and the blades are composed of sheet metal and are brazed together, the cost of manufacturing the rotor can be reduced without reducing its performance.

REFERENCES:
patent: 2115895 (1938-05-01), Weihmann
patent: 2466266 (1949-04-01), Orr
patent: 3166161 (1965-01-01), Hayes
patent: 3873237 (1975-03-01), Tokunaga
patent: 5113653 (1992-05-01), Sahashi
patent: 5241820 (1993-09-01), Fukunaga et al.
patent: 5522220 (1996-06-01), Locker
The Publication "The Power and Works Engineer" dated Dec. 1939.

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