Power plants – Motive fluid energized by externally applied heat – Process of power production or system operation
Patent
1995-02-21
1997-07-22
Ferensic, Denise L.
Power plants
Motive fluid energized by externally applied heat
Process of power production or system operation
60651, 60671, F01K 2510
Patent
active
056494254
ABSTRACT:
A turboexpander pump unit has a vertical or horizontal shaft, a pump connected to an end of the shaft for pressurizing a liquid fluid to a pressure higher than a predetermined delivery pressure, a heat exchanger for heating and converting the liquid fluid pressurized by the pump into a high-pressure gas, and an expander turbine connected to an opposite end of the shaft and actuatable by a thermal energy reduction produced when the high-pressure gas from the heat exchanger is lowered to the predetermined delivery pressure, for delivering the liquid fluid continuously under a predetermined pressure to an external installation. The pump having at least two outlet ports for discharging the liquid fluid at respective different pressures. One of the two outlet ports is connected to the heat exchanger, and the other to a liquid delivery line.
REFERENCES:
patent: 3614255 (1971-10-01), Rooney
patent: 4178761 (1979-12-01), Schwartzman
patent: 4753571 (1988-06-01), Schill et al.
patent: 4865529 (1989-09-01), Sutton et al.
"Design of an Oxygen Turbopump for use in an Advanced Expander Test Bed Engine", Pattison et al., American Institute of Aeronautics and Astronautics, Inc., 1993, pp. 1-7.
"Cryogenic Turboexpanders with Magnetic Bearings", Reuter et al., Cryogenic Processes and Machinery, No. 294, vol. 89, pp. 35-45.
Katsuta Seigo
Matsumura Masao
Takeuchi Takao
Basichas Alfred
Ebara Corporation
Ferensic Denise L.
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