Cryogenic refrigeration control system

Refrigeration – Processes – Treating an article

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

62161, 62239, 62514R, F25D 1702

Patent

active

045760101

ABSTRACT:
Three tanks containing cryogenic fluid coolant are mounted inside the insulated compartment of a refrigeration container. A control system releases coolant into the compartment responsive to changes in the compartment temperature relative to maximum and minimum temperatures. When the compartment temperature is below the minimum temperature, no cooling of the compartment is desired, and the controller vents all excess boil off vapor outside the compartment. When the compartment temperature is above the maximum temperature, substantial cooling is required, and the controller releases vaporized coolant liquid into the compartment. When the compartment temperature is between the maximum and minimum temperatures, some minimal cooling is needed, and the controller flows the excess boil off vapor into the compartment instead of venting it outside. The coolant is released into the compartment through a venturi to circulate the compartment gases. Special valves and venturi permit operation of the system for more than a year without recharging a standard 12 volt DC battery.

REFERENCES:
patent: 2479840 (1949-08-01), Johnson et al.
patent: 2479867 (1949-08-01), Rosebaugh
patent: 3127755 (1964-04-01), Hemery
patent: 3269133 (1969-08-01), Dixon
patent: 3287925 (1966-11-01), Kane et al.
patent: 3385073 (1968-05-01), Snelling
patent: 4058384 (1977-11-01), Keefe
patent: 4060400 (1977-11-01), Williams
patent: 4373344 (1983-02-01), Hinn
patent: 4399658 (1983-08-01), Nielsen

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Cryogenic refrigeration control system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Cryogenic refrigeration control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cryogenic refrigeration control system will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2299834

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.