Diaphragm with cast nozzle blocks and method of construction the

Details Diaphragm with cast nozzle blocks and method of construction the Diaphragm with cast nozzle blocks and method of construction the

1975-11-14

1977-05-24

Raduazo, Henry F.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

With runner shaft of specific shape or material

415217, 415219R, 415DIG5, F01D 102

Patent

active

040252299

ABSTRACT:
A turbine diaphragm assembly comprising a hub and a spaced retaining ring with an arcuate array of investment cast nozzle blocks having interfitting shroud segments disposed therebetween with the exit edges of the nozzle blades being substantially radially disposed and the flow passages having constantly uniform throats throughout the full radial extents thereof to maximize turbine efficiency. Manufacture is effected by arcuately grooving the front side of a plate, disposing the arcuate nozzle block array in the groove and bonding the same therein, and removing the web from the other side of the plate to open the flow passages.

REFERENCES:
patent: 974956 (1910-11-01), Emden et al.
patent: 1819485 (1931-08-01), Sedlmeir
patent: 2013512 (1935-09-01), Birmann
patent: 2299449 (1942-10-01), Allen
patent: 2447942 (1948-08-01), Imbert et al.
patent: 2556890 (1951-06-01), Thorn
patent: 3650635 (1972-03-01), Wachtell et al.
patent: 3751180 (1973-08-01), Cameron

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