The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 22, 1997

Filed:

Feb. 21, 1995
Applicant:
Inventors:

Masao Matsumura, Kanagawa-ken, JP;

Takao Takeuchi, Tokyo, JP;

Seigo Katsuta, Kanagawa-ken, JP;

Assignee:

Ebara Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01K / ;
U.S. Cl.
CPC ...
60648 ; 60651 ; 60671 ;
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.


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