US 12,421,963 B2
Refrigerant circulation device and pump unit
Kota Ozasa, Kyoto (JP); and Makoto Itsuki, Bietigheim-Bissingen (DE)
Assigned to NIDEC CORPORATION, Kyoto (JP)
Filed by Nidec Corporation, Kyoto (JP)
Filed on Feb. 20, 2024, as Appl. No. 18/581,497.
Claims priority of application No. 2023-028430 (JP), filed on Feb. 27, 2023.
Prior Publication US 2024/0287984 A1, Aug. 29, 2024
Int. Cl. F04B 53/22 (2006.01); F04B 49/06 (2006.01); F04B 23/04 (2006.01)
CPC F04B 53/22 (2013.01) [F04B 49/065 (2013.01); F04B 23/04 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A refrigerant circulation device comprising:
a chassis including a flow path of refrigerant;
at least one pump assembly;
a plurality of mounting portions that are provided at different positions in the chassis and to which the pump assembly is detachably mounted, respectively; and
a controller; wherein
the controller is configured or programmed to execute:
specification processing to specify a mounted state of the pump assembly to any one of the plurality of mounting portions a plurality of times at time intervals; and
control of the pump assembly mounted to the plurality of mounting portions based on a mounted state specified in the specification processing; and
the pump assembly pressure-feeds the refrigerant to the flow path under control of the controller.