US 11,813,925 B2
Methods and systems for maintaining cargo at an ultra-low temperature over an extended period of time
Lars I. Sjoholm, Burnsville, MN (US)
Assigned to THERMO KING LLC, Minneapolis, MN (US)
Filed by THERMO KING LLC, Minneapolis, MN (US)
Filed on Sep. 28, 2021, as Appl. No. 17/487,691.
Claims priority of provisional application 63/084,202, filed on Sep. 28, 2020.
Prior Publication US 2022/0097486 A1, Mar. 31, 2022
Int. Cl. B60H 1/32 (2006.01); B60H 1/00 (2006.01)
CPC B60H 1/3228 (2019.05) [B60H 1/00364 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A transport climate control system configured to maintain an ultra-low temperature over an extended period of time, the transport climate control system comprising:
a primary climate control system including a first compressor, a first condenser, a first expander, and a main evaporator that is configured to thermally communicate with a climate controlled space; and
a secondary climate control system including an ultra-low temperature phase changing medium packaged inside or outside of an enclosure for a cargo,
wherein the secondary climate control system is configured to thermally communicate with the climate controlled space, the primary climate control system, and the cargo to provide additional or back-up climate control capacity at the ultra-low temperature,
wherein the ultra-low temperature is between −40° C. to −80° C., and
wherein the ultra-low temperature phase changing medium is packaged such that the ultra-low temperature phase changing medium is arranged to dissipate in the climate controlled space.