Cooling structure around L shaped vertical type gas turbine outp

Details Cooling structure around L shaped vertical type gas turbine outp Cooling structure around L shaped vertical type gas turbine outp

1999-02-19

2000-09-19

Look, Edward K.

Rotary kinetic fluid motors or pumps

Including heat insulation or exchange means

Cooling fluid contacts shaft, seal or bearing

415178, F01D 508

Patent

active

061202452

ABSTRACT:
A cooling structure around the output shaft of an L-shaped vertical gas turbine, for cooling the output shaft effectively by a natural ventilation. A gas generator 5 is arranged horizontally whereas an output turbine 1 is arranged vertically, and a pump or the like is driven by an output shaft 3. A cylinder 20 is fitted in a space 12 between the output shaft 3 and a cylindrical casing 13 and is fixed at a cylindrical flange 20a. Cooling air 30 is caused to flow upward from between the cylinder 20 and the output shaft 3 by the ejector effect of an exhaust gas from below a baseplate 8 and by the vacuum in the casing and then to flow downward from the upper end of the cylinder 20 between the cylinder 20 and the cylindrical casing 13, so that it flows out from the lower portion into the package. The output shaft of the L-shaped vertical type gas turbine having a compact narrow space is effectively cooled therearound by the natural ventilation without providing any fan or the like.

REFERENCES:
patent: 4339925 (1982-07-01), Eggmann et al.
patent: 5114309 (1992-05-01), Hengelmolen
patent: 5713196 (1998-02-01), Uekusa et al.

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