US 12,449,164 B2
Heat pump
Norihiro Okuda, Osaka (JP); Sachie Tsujikawa, Osaka (JP); Terunori Aikawa, Osaka (JP); and Shingo Okada, Osaka (JP)
Assigned to YANMAR POWER TECHNOLOGY CO., LTD., Osaka (JP)
Appl. No. 17/914,058
Filed by Yanmar Power Technology Co., Ltd., Osaka (JP)
PCT Filed Mar. 1, 2021, PCT No. PCT/JP2021/007713
§ 371(c)(1), (2) Date Sep. 23, 2022,
PCT Pub. No. WO2021/192828, PCT Pub. Date Sep. 30, 2021.
Claims priority of application No. 2020-053962 (JP), filed on Mar. 25, 2020.
Prior Publication US 2023/0117450 A1, Apr. 20, 2023
Int. Cl. F25B 5/02 (2006.01)
CPC F25B 5/02 (2013.01) 16 Claims
OG exemplary drawing
 
1. A heat pump configured to circulate a refrigerant for cooling and heating, the heat pump comprising:
a first outdoor heat exchanger and a second outdoor heat exchanger, wherein a first port of the first outdoor heat exchanger and a first port of the second outdoor heat exchanger are connected in parallel to a refrigerant source via piping;
a merge part coupled to a second port of the first heat exchanger and a second port of the second heat exchanger and in which refrigerants flowing out of the second port of the first outdoor heat exchanger and the second port of the second outdoor heat exchanger merge; and
a third outdoor heat exchanger having a first port connected to the merge part, and wherein the refrigerants flow from the third heat exchanger to the second heat exchanger and the first heat exchanger via the merge part during a first mode of operation and from the second heat exchanger and the first heat exchanger to the third heat exchanger via the merge part during a second mode of operation,
wherein each of the first outdoor heat exchanger, the second outdoor heat exchanger, and the third outdoor heat exchanger exchanges heat with outside air.