Rotary kinetic fluid motors or pumps – Axially opposed working fluid paths to or from runner – Plural – separate – parallel – simultaneous flow paths
Patent
1978-06-02
1980-11-11
Smith, Leonard E.
Rotary kinetic fluid motors or pumps
Axially opposed working fluid paths to or from runner
Plural, separate, parallel, simultaneous flow paths
415134, 415177, 415219R, F01D 302, F01D 2526, F01D 2508
Patent
active
042329930
ABSTRACT:
A low pressure casing structure of a single shell type which houses, in a low pressure casing, a turbine rotor having turbine blades mounted thereon in a multiplicity of stages, including a heat admitting portion located in an upper central part of the low pressure casing and formed therein with a steam admitting port for admitting turbine driving steam therethrough into the interior of the casing, turbine diaphragms rigidly secured to an inner surface of the casing for supporting stationary blades arranged in a multiplicity of stages axially of the turbine in association with the turbine blades of the turbine rotor, exhausted steam chambers each located at one of opposite ends of the casing axially of the turbine for receiving steam of low temperature and low pressure exhausted thereinto after doing work in the turbine, and a shell of the casing connecting the steam admitting portion to the exhausted steam chambers. The low pressure casing of a single shell type further includes wall means located along an outer surface of the shell in a manner to enclose same and cooperate therewith to define therebetween annular spaces for minimizing temperature differential between the inner and outer surfaces of the low pressure casing.
REFERENCES:
patent: 4102598 (1978-07-01), Stock et al.
Ikeda Tadasu
Taki Takamitsu
Hitachi , Ltd.
Smith Leonard E.
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