Seal-less cryogenic expander

Details Seal-less cryogenic expander Seal-less cryogenic expander

1986-09-04

1987-12-08

Makay, Albert J.

Refrigeration

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

60520, F25B 900

Patent

active

047116501

ABSTRACT:
A cryogenic refrigerator operating on the Split-Sterling cycle principle is disclosed. The refrigerator has a seal-less expander and achieves efficient operation without the use of external control apparatus. This is accomplished by sizing the expander so that two pressure differential forces developed across a displacer in the expander are approximately equal in magnitude. For efficient operation, the expander's gas flow rate is selected to provide the proper time delay between the two pressure differential forces.

REFERENCES:
patent: 1275507 (1918-08-01), Vuilleumier
patent: 3296808 (1967-01-01), Malik
patent: 3367121 (1968-02-01), Higa
patent: 3421331 (1969-01-01), Higa
patent: 3877239 (1975-04-01), Leo
patent: 3991586 (1976-11-01), Acord
patent: 4024727 (1977-05-01), Berry et al.
patent: 4074908 (1978-02-01), Spencer
patent: 4475346 (1984-10-01), Young et al.
patent: 4501120 (1985-02-01), Holland
patent: 4514987 (1985-05-01), Pundak et al.
patent: 4539818 (1985-09-01), Holland
patent: 4550571 (1985-11-01), Bertsch

Affiliated with

Also associated with

Rating

Seal-less cryogenic expander does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seal-less cryogenic expander, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seal-less cryogenic expander will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-21384