Title:
EXPANDER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2012/134608
Kind Code:
A3
Abstract:
An apparatus (20) has a compressor (22), heat rejection heat exchanger (30), heat absorption heat exchanger (60), and expansion-compression device (40; 200). The expansion-compression device couples the heat absorption heat exchanger to the heat rejection heat exchanger and to the compressor. The expansion-compression device comprises first (80A), second (80B), third (80C), and fourth (80D) variable volume chambers and a pivoting member. The pivoting member (98) is mounted for reciprocal rotation in opposite first and second directions about an initial orientation and is coupled to the chambers so that: rotation from the initial orientation in the first direction expands the first and third chambers and compresses the second and fourth chambers; and rotation from the initial orientation in the first direction compresses the first and third chambers and expands the second and fourth chambers.
Inventors:
GERLACH DAVID W (US)
Application Number:
PCT/US2012/022152
Publication Date:
January 03, 2013
Filing Date:
January 23, 2012
Export Citation:
Assignee:
CARRIER CORP (US)
GERLACH DAVID W (US)
GERLACH DAVID W (US)
International Classes:
F04B45/02; F25B9/06; F04B45/033
Foreign References:
| DE19813220A1 | 1999-09-30 | |||
| DE10242271B3 | 2004-01-08 | |||
| US5375430A | 1994-12-27 | |||
| US5381675A | 1995-01-17 | |||
| US5073094A | 1991-12-17 |
Other References:
MA Y ET AL: "THERMODYNAMIC ANALYSIS AND COMPARISON OF EXPANDER FOR CO2 TRANSCRITICAL CYCLE", IIR GUSTAV LORENTZEN CONFERENCE ON NATURAL WORKING FLUIDS.JOINT CONFERENCE OF THE INTERNATIONAL INSTITUTE OF REFRIGERATIONSECTION B AND E, XX, XX, 17 September 2002 (2002-09-17), pages 287 - 292, XP001176575
HEYL P ET AL: "FREE PISTON EXPANDER-COMPRESSOR FOR CO2-DESIGN, APPLICATIONS AND RESULTS", INTERNATIONAL CONGRESS OF REFRIGERATION. PROCEEDINGS - CONGRESINTERNATIONAL DU FROID. COMPTES RENDUS, XX, XX, vol. 3, 19 September 1999 (1999-09-19), pages COMPLETE, XP000962276
HEYL P ET AL: "FREE PISTON EXPANDER-COMPRESSOR FOR CO2-DESIGN, APPLICATIONS AND RESULTS", INTERNATIONAL CONGRESS OF REFRIGERATION. PROCEEDINGS - CONGRESINTERNATIONAL DU FROID. COMPTES RENDUS, XX, XX, vol. 3, 19 September 1999 (1999-09-19), pages COMPLETE, XP000962276
Attorney, Agent or Firm:
SLATE, William, B. (Suite 1201New Haven, CT, US)
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