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1. (WO2017176838) HEAT PUMP UNIT AND MULTI-FUNCTIONAL MODE CONTROL METHOD

Pub. No.:    WO/2017/176838    International Application No.:    PCT/US2017/026066
Publication Date: Fri Oct 13 01:59:59 CEST 2017 International Filing Date: Thu Apr 06 01:59:59 CEST 2017
IPC: F25B 13/00
F25B 29/00
F25B 47/02
F25B 41/04
F25B 49/02
Applicants: CARRIER CORPORATION
Inventors: LI, Haijun
CHEN, Jie
CHEN, Jianhua
SHEN, Guangyu
Title: HEAT PUMP UNIT AND MULTI-FUNCTIONAL MODE CONTROL METHOD
Abstract:
A heat pump unit, which comprises: a heat pump system comprising a compressor, a refrigeration heat exchanger, a heating heat exchanger, a first heat exchanger, a flow path switching valve and a throttling element, wherein the throttling element is arranged on a flow path between any two of the heat exchangers; and further comprising a mode switching flow path, wherein a first flow path, a second flow path and a third flow path are arranged and each flow path is controllably conducted or disconnected to realize different functional modes.