Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Patent
1997-05-22
1999-06-29
Verdier, Christopher
Fluid reaction surfaces (i.e., impellers)
With heating, cooling or thermal insulation means
Changing state mass within or fluid flow through working...
416 97R, 416 96A, 415115, F61D 518
Patent
active
059159235
ABSTRACT:
A gas turbine moving blade in which the moving blade operating in a high temperature operating gas is cooled from its interior by steam and the steam after being used for the cooling is recovered, by use of a simple structure. A supply side passage (10), through which steam (6) is supplied directly into a cooling passage (51) of a blade leading edge side (11), is provided within a blade root portion (2) and a pocket (19). One end of the pocket is connected to the supply side passage and the other end of which is connected to a cooling passage (52) of a blade trailing edge side (12). The pocket is covered with a plate, which extends in a blade chord direction on an outer peripheral side face of the blade root portion between a blade platform and a rotor plate. Thus, efficiency of the gas turbine can be effectively enhanced.
REFERENCES:
patent: 2873087 (1959-02-01), Terrell et al.
patent: 2920865 (1960-01-01), Lombard
patent: 3455537 (1969-07-01), Kozlin et al.
patent: 4259037 (1981-03-01), Anderson
Ichiryu Taku
Suenaga Kiyoshi
Tomita Yasuoki
Mitsubishi Heavy Industries Ltd.
Verdier Christopher
Woo Richard
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