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Title:
COMPRESSED AIR ENERGY STORAGE SYSTEM WITH REVERSIBLE COMPRESSOR - EXPANDER UNIT AND CORRESPONDING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/056296
Kind Code:
A3
Abstract:
A system and method for compressing and expanding air in a compressed air energy storage (CAES) system is disclosed. A CAES system is provided that is alternately operable in a compression mode and an expansion mode and includes therein a motor-generator unit and a drive shaft connected to the motor-generator unit that is configured to transmit rotational power to and from the motor-generator unit. The CAES system also includes at least one reversible compressor-expander unit coupled to the drive shaft and configured to selectively compress and expand air, and an air storage unit connected to the reversible compressor-expander unit and configured to store compressed air received therefrom, with the at least one reversible compressor-expander unit compressing air during the compression mode and expanding air during the expansion mode.

Inventors:
AST GABOR (DE)
HOFFMANN STEPHANIE MARIE-NOELLE (DE)
LEHAR MATTHEW (DE)
SIMPSON ALEXANDER (DE)
AALBURG CHRISTIAN (DE)
FREY THOMAS (DE)
AUMANN RICHARD (DE)
FINKENRATH MATTHIAS (DE)
Application Number:
US2010/048586
Publication Date:
September 29, 2011
Filing Date:
September 13, 2010
Export Citation:
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Assignee:
GEN ELECTRIC (US)
AST GABOR (DE)
HOFFMANN STEPHANIE MARIE-NOELLE (DE)
LEHAR MATTHEW (DE)
SIMPSON ALEXANDER (DE)
AALBURG CHRISTIAN (DE)
FREY THOMAS (DE)
AUMANN RICHARD (DE)
FINKENRATH MATTHIAS (DE)
International Classes:
F02C1/02; F02C6/16; H02J15/00
Domestic Patent References:
WO2007002094A22007-01-04
Foreign References:
JPH0742573A1995-02-10
US4281256A1981-07-28
JPH09317495A1997-12-09
GB1213112A1970-11-18
Attorney, Agent or Firm:
PHILLIPS, Roger, C. et al. (Global Patent Operation2 Corporate Drive, Suite 64, Shelton CT, US)
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