Title:
VERY EFFICIENT HEAT EXCHANGER FOR CRYOGEN FREE MRI MAGNET
Document Type and Number:
WIPO Patent Application WO/2013/046129
Kind Code:
A3
Abstract:
A heat exchanger (5) includes a thermally conductive cylindrical container (40), at least one thermally conductive tube (30), a cooling column (90), and a cryogen coldhead (100). The cooling column and coldhead condense gaseous helium to liquid helium to maintain a reservoir of liquid helium in the thermally conductive cylindrical container (40). The at least one thermally conductive tube (30) coils circumferentially around the container (40), and extends to at least one superconducting magnet coil heat exchanger (20), and back. The tube forms a selected loop which holds gaseous helium at pressure up about 104 bar (1500 PSI) or room temperature to about.75 bar at cryogenic temperatures.
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Inventors:
ACKERMANN ROBERT ADOLPH (NL)
MENTEUR PHILIPPE (NL)
DHAR MANMOHAN (NL)
MENTEUR PHILIPPE (NL)
DHAR MANMOHAN (NL)
Application Number:
PCT/IB2012/055119
Publication Date:
June 13, 2013
Filing Date:
September 26, 2012
Export Citation:
Assignee:
KONINKL PHILIPS ELECTRONICS NV (NL)
International Classes:
F25B25/00; F25D19/00; F25B9/10
Foreign References:
| US20060048522A1 | 2006-03-09 | |||
| EP1643197A2 | 2006-04-05 | |||
| US6609383B1 | 2003-08-26 | |||
| US20060097146A1 | 2006-05-11 |
Attorney, Agent or Firm:
VAN VELZEN, Maaike, M. et al. (Building 44, AE Eindhoven, NL)
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