Modular, magnetically-coupled drive for a cryogenic refrigerator

Details Modular, magnetically-coupled drive for a cryogenic refrigerator Modular, magnetically-coupled drive for a cryogenic refrigerator

1975-09-02

1977-08-30

Capossela, Ronald C.

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

310104, 417420, F25B 900

Patent

active

040445674

ABSTRACT:
An improved Vuilleumier cycle refrigerator is disclosed. To reduce fluid contamination and inactive refrigerant volume, the hot and cold fluid displacers of the refrigerator are driven by a magnetic drive mechanism. The magnetic drive mechanism has a first and second assembly. The first assembly is contained in the fluid chamber together with the hot and cold displacers; the second assembly including the drive motor is mounted exteriorly of the fluid chamber. The first and second assemblies of the drive mechanism include adjacent magnets separated by the wall of the fluid chamber. Thus, the first and second assemblies are coupled together by their magnetic field for rotation to drive the hot and cold displacers and the fluid chamber provides an hermetic seal to contain the working fluid thereby removing the motor with its air space and contaminants from the fluid chamber.

REFERENCES:
patent: 3205827 (1965-09-01), Zimmerman
patent: 3423948 (1969-01-01), Cowans
patent: 3703653 (1972-11-01), Tracy et al.
patent: 3744261 (1973-07-01), Lagodmos
patent: 3932068 (1976-01-01), Zimmerman
patent: 3933000 (1976-01-01), Doody

Affiliated with

Also associated with

Rating

Modular, magnetically-coupled drive for a cryogenic refrigerator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Modular, magnetically-coupled drive for a cryogenic refrigerator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular, magnetically-coupled drive for a cryogenic refrigerator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-954540