Dual entry radial turbine gas generator

Details Dual entry radial turbine gas generator Dual entry radial turbine gas generator

1985-02-05

1987-02-10

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

Multiple fluid-operated motors

60726, 415 98, 4151991, F02C 310

Patent

active

046414959

ABSTRACT:
A compact, highly efficient single spool gas turbine gas generator uses a double-entry centrifugal first stage compressor, a single-entry centrifugal second stage compressor, and a radial inflow turbine to achieve an overall pressure ratio of greater than 15:1. The first stage pressure ratio is more than twice the second stage pressure ratio, and the first stage entrance Mach numbers are greater than about 1.4. The specific speed of each the compressors ranges from 0.65 to 0.85, and of the turbine from 0.50 to 0.75.

REFERENCES:
patent: 2405919 (1946-08-01), Whittle
patent: 2435836 (1948-02-01), Johnson
patent: 2470565 (1949-05-01), Loss
patent: 2578481 (1951-12-01), Lombard
patent: 2695499 (1954-11-01), Walker
patent: 3625003 (1970-09-01), Liddle et al.
patent: 4251985 (1981-02-01), Sullivan
Garrett publication, "Series 85" (AiResearch Div.).
Thomassen Holland b.n. publication, "TF-10".

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