Patent · US Active

Two-phase expansion system and method for energy recovery

US7987676B2 · kind B2 · utility

48Cited by

1References

22Claims

0Family size

Assignee

General Electric Company · US

Inventors

Gabor Ast · Munich, DE
Thomas Johannes Frey · Bad Abbach, DE
Herbert Kopecek · Tirol, AT
Michael Adam Bartlett · Bad Abbach, DE
Pierre Sebastien Huck · Munich, DE

Key dates

Filing date	Nov 20, 2008
Grant date	Aug 2, 2011
Priority date	—
Expiry date	Jan 30, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF22B3/04
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A closed loop expansion system for energy recovery includes a heat exchanger for using heat from a heat source to heat a working fluid of the closed loop expansion system to a temperature below the vaporization point of the working fluid; a radial inflow expander for receiving the working fluid from the heat exchanger and for expanding and partially vaporizing the working fluid; a screw expander for receiving the working fluid from the radial inflow turbine and for further expanding and vaporizing the working fluid; and a condenser for receiving the working fluid from the screw expander and for liquefying the working fluid.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.