COMPRESSOR, DUAL-COMPRESSOR SERIES HEAT PUMP UNIT AND CONTROL METHOD THEREFOR

WIPO Patent Application WO/2022/088813

A1

Provided by the present disclosure are a compressor, a dual-compressor series heat pump unit, and a control method therefor, wherein the compressor comprises a first compression part and a first driving part. The first driving part is arranged in a first gearbox housing. The first compression part is arranged in a first air intake housing. The first air intake housing is connected to the first gearbox housing to form an integral body. The first air intake housing is configured with a first bypass port. A first lubricating oil inlet and a first balance port are configured on the first gearbox housing. According to the present disclosure, the first bypass port, the first balance port, and the first lubricating oil inlet provided on a compressor housing may facilitate the connection of the unit in different operation modes by means of setting corresponding communication pipelines when applied to a dual-compressor series heat pump unit. Thus, in both a single-compressor operation mode and the dual-compressor operation mode, lubricating oil in the compressors may smoothly return to an external oil tank.

ZHANG ZHIPING (CN)
HUA CHAO (CN)
ZHOU TANG (CN)
CAO LIHENG (CN)

PCT/CN2021/109663

May 05, 2022

July 30, 2021

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GREE GREEN REFRIGERATION TECH CT CO LTD ZHUHAI (CN)

F25B31/00

CN112197453A	2021-01-08
CN213578184U	2021-06-29
CN104541065A	2015-04-22
CN204494911U	2015-07-22
CN110966201A	2020-04-07
JPH10238881A	1998-09-08
US20130343932A1	2013-12-26

CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)

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