High speed defrosting heat pump
AssigneeKohvac Co., Ltd.
InventorChoon-Kyoung Park
Life of this patent
Estimating the term…
Abstract
Disclosed is a high speed defrosting heat pump having a closed refrigerant circulation loop including a four-way valve so as to conduct cooling and heating operations by switching a refrigerant-circulating direction by means of the four-way valve. A three-way valve is disposed on a refrigerant pipe connected between a compressor and the four-way valve, and a bypass pipe is branched off from the three-way valve in such a manner as to be connected to a refrigerant pipe connected between an expansion valve and a exterior heat exchanger, such that the hot gas discharged from the compressor is introduced to the exterior heat exchanger via the bypass tube by the control of the three-way valve.
Claims6
A high speed defrosting heat pump in which a refrigerant is circulated in a closed loop formed by a compressor (11), a four-way valve (21), an interior heat exchanger (12), expansion valves (23 and 24), and an exterior heat exchanger (13) so as to conduct cooling and heating operations by switching a refrigerant-circulating direction by means of the four-way valve (21), the high speed defrosting heat pump comprising:
- a three-way valve (22) disposed on a refrigerant pipe connected between the compressor (11) and the four-way valve (21);
- and
- a bypass pipe (31) is branched off from the three-way valve (22) in such a manner as to be connected to a refrigerant pipe connected between the expansion valve (24) and the exterior heat exchanger (13),
- whereby hot gas discharged from the compressor (11) is introduced to the exterior heat exchanger via the bypass tube (31) under the control of the three-way valve (22).
Dependencies are inferred from the claim text.