WO1992014975A1 - Dynamically balanced gifford-mcmahon refrigerator cold head - Google Patents
Dynamically balanced gifford-mcmahon refrigerator cold head Download PDFInfo
- Publication number
- WO1992014975A1 WO1992014975A1 PCT/US1992/001111 US9201111W WO9214975A1 WO 1992014975 A1 WO1992014975 A1 WO 1992014975A1 US 9201111 W US9201111 W US 9201111W WO 9214975 A1 WO9214975 A1 WO 9214975A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thermal
- gifford
- displacer
- mcmahon
- cold head
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/22—Compensation of inertia forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
- G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G2242/00—Ericsson-type engines having open regenerative cycles controlled by valves
- F02G2242/40—Piston-type engines
- F02G2242/42—Piston-type engines having a single piston regenerative displacer attached to the piston, e.g. "Gifford-McMahon" engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2500/00—Problems to be solved
- F25B2500/12—Sound
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4507045A JPH0781755B2 (en) | 1991-02-19 | 1992-02-10 | Dynamically balanced Gifford McMahon refrigerator low temperature head |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US657,228 | 1976-02-11 | ||
US07/657,228 US5103647A (en) | 1991-02-19 | 1991-02-19 | Dynamically balanced Gifford-McMahon refrigerator cold head |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1992014975A1 true WO1992014975A1 (en) | 1992-09-03 |
Family
ID=24636343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1992/001111 WO1992014975A1 (en) | 1991-02-19 | 1992-02-10 | Dynamically balanced gifford-mcmahon refrigerator cold head |
Country Status (4)
Country | Link |
---|---|
US (1) | US5103647A (en) |
EP (1) | EP0525182A1 (en) |
JP (1) | JPH0781755B2 (en) |
WO (1) | WO1992014975A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5247800A (en) * | 1992-06-03 | 1993-09-28 | General Electric Company | Thermal connector with an embossed contact for a cryogenic apparatus |
US5513498A (en) * | 1995-04-06 | 1996-05-07 | General Electric Company | Cryogenic cooling system |
US5735127A (en) * | 1995-06-28 | 1998-04-07 | Wisconsin Alumni Research Foundation | Cryogenic cooling apparatus with voltage isolation |
US5735128A (en) * | 1996-10-11 | 1998-04-07 | Helix Technology Corporation | Cryogenic refrigerator drive |
US6396377B1 (en) | 2000-08-25 | 2002-05-28 | Everson Electric Company | Liquid cryogen-free superconducting magnet system |
US6708503B1 (en) * | 2002-12-27 | 2004-03-23 | General Electric Company | Vacuum retention method and superconducting machine with vacuum retention |
CN101213468B (en) * | 2005-06-28 | 2012-06-27 | 皇家飞利浦电子股份有限公司 | Ferromagnetic shield for magnetic resonance imaging |
WO2009150576A1 (en) * | 2008-06-10 | 2009-12-17 | Koninklijke Philips Electronics N.V. | Cryocooling system for mri providing reduced artifacts caused by vibrations |
JP2013174393A (en) * | 2012-02-24 | 2013-09-05 | Sumitomo Heavy Ind Ltd | Ultra-low temperature freezer |
WO2017153805A1 (en) | 2016-03-09 | 2017-09-14 | Synaptive Medical (Barbados) Inc. | Reducing magnetic field instabilities caused by oscillations of a mechanical cryocooler in magnetic resonance systems |
CN110319991B (en) * | 2019-07-04 | 2021-04-06 | 合肥中科离子医学技术装备有限公司 | Spring testing device based on GM refrigerator |
US11029377B2 (en) | 2019-09-03 | 2021-06-08 | Synaptive Medical Inc. | Method and system for reducing magnetic field instabilities in a magnetic resonance system |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3991585A (en) * | 1974-04-29 | 1976-11-16 | U.S. Philips Corporation | Cold-gas refrigerator |
US4143520A (en) * | 1977-12-23 | 1979-03-13 | The United States Of America As Represented By The Secretary Of The Navy | Cryogenic refrigeration system |
US4277947A (en) * | 1980-04-16 | 1981-07-14 | The United States Of America As Represented By The Secretary Of The Army | Cryogenic cooler having telescoping multistage regenerator-displacers |
US4277948A (en) * | 1980-06-27 | 1981-07-14 | The United States Of America As Represented By The Secretary Of The Army | Cryogenic cooler with annular regenerator and clearance seals |
US4366676A (en) * | 1980-12-22 | 1983-01-04 | The Regents Of The University Of California | Cryogenic cooler apparatus |
US4397156A (en) * | 1980-11-26 | 1983-08-09 | Leybold Heraeus Gmbh | Displacer for low-temperature refrigerating machines |
US4642995A (en) * | 1984-04-11 | 1987-02-17 | Leybold-Hearaeus GmbH | Damped displacer refrigerating machine |
DE3536710A1 (en) * | 1985-10-15 | 1987-04-23 | Schneider Christian Dipl Ing | Heat converter and method of operating it |
US4922722A (en) * | 1988-05-24 | 1990-05-08 | Mitsubishi Denki Kabushiki Kaisha | Stirling refrigerator with nonlinear braking spring |
EP0437661A1 (en) * | 1990-01-18 | 1991-07-24 | Leybold Aktiengesellschaft | Cold finger with a Gifford-McMahon cryogenic regrigerator |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4430863A (en) * | 1982-06-07 | 1984-02-14 | Air Products And Chemicals, Inc. | Apparatus and method for increasing the speed of a displacer-expander refrigerator |
-
1991
- 1991-02-19 US US07/657,228 patent/US5103647A/en not_active Expired - Fee Related
-
1992
- 1992-02-10 JP JP4507045A patent/JPH0781755B2/en not_active Expired - Lifetime
- 1992-02-10 EP EP92907649A patent/EP0525182A1/en not_active Ceased
- 1992-02-10 WO PCT/US1992/001111 patent/WO1992014975A1/en not_active Application Discontinuation
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3991585A (en) * | 1974-04-29 | 1976-11-16 | U.S. Philips Corporation | Cold-gas refrigerator |
US4143520A (en) * | 1977-12-23 | 1979-03-13 | The United States Of America As Represented By The Secretary Of The Navy | Cryogenic refrigeration system |
US4277947A (en) * | 1980-04-16 | 1981-07-14 | The United States Of America As Represented By The Secretary Of The Army | Cryogenic cooler having telescoping multistage regenerator-displacers |
US4277948A (en) * | 1980-06-27 | 1981-07-14 | The United States Of America As Represented By The Secretary Of The Army | Cryogenic cooler with annular regenerator and clearance seals |
US4397156A (en) * | 1980-11-26 | 1983-08-09 | Leybold Heraeus Gmbh | Displacer for low-temperature refrigerating machines |
US4366676A (en) * | 1980-12-22 | 1983-01-04 | The Regents Of The University Of California | Cryogenic cooler apparatus |
US4642995A (en) * | 1984-04-11 | 1987-02-17 | Leybold-Hearaeus GmbH | Damped displacer refrigerating machine |
DE3536710A1 (en) * | 1985-10-15 | 1987-04-23 | Schneider Christian Dipl Ing | Heat converter and method of operating it |
US4922722A (en) * | 1988-05-24 | 1990-05-08 | Mitsubishi Denki Kabushiki Kaisha | Stirling refrigerator with nonlinear braking spring |
EP0437661A1 (en) * | 1990-01-18 | 1991-07-24 | Leybold Aktiengesellschaft | Cold finger with a Gifford-McMahon cryogenic regrigerator |
Also Published As
Publication number | Publication date |
---|---|
JPH05501296A (en) | 1993-03-11 |
JPH0781755B2 (en) | 1995-09-06 |
EP0525182A1 (en) | 1993-02-03 |
US5103647A (en) | 1992-04-14 |
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