公开(公告)号：US20180266723A1

公开(公告)日：2018-09-20

申请号：US15756465

申请日：2016-08-10

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Hayato MORI ,  Shuntaro INOUE ,  Shoutaro YAMAMOTO ,  Katsuaki NAGAHASHI

IPC分类号： F24F13/20 ,  F24F1/50 ,  F24F13/32 ,  F24F13/24

CPC分类号： F24F13/20 ,  F24F1/50 ,  F24F1/56 ,  F24F1/60 ,  F24F13/24 ,  F24F13/32

摘要： A refrigeration and air conditioning device, which is an outdoor unit of a refrigeration and air conditioning device provided with a heat exchanger within a housing (2) and blowers (3) arranged on the housing, the housing (2) being provided with a side cover covering the sides, a base (9) covering the bottom and a foot portion (10) arranged below the base (9), the foot portion (10) being provided with a raised portion (10b) upwardly bending an end face (10c) of a lower surface of the foot portion. The refrigeration and air conditioning device increases rigidity without increasing costs.

公开(公告)号：US20190277550A1

公开(公告)日：2019-09-12

申请号：US16360189

申请日：2019-03-21

申请人： Hitachi-Johnson Controls Air Conditioning, Inc.

发明人： Atsuhiko YOKOZEKI ,  Koji NAITO ,  Kazuhito SEKIBA ,  Shoutaro YAMAMOTO ,  Hiroaki KANEKO ,  Kazuhiko TANI

IPC分类号： F25B49/02

摘要： To achieve higher efficiency at a low-load region and to enable power saving throughout a year. The refrigeration cycle apparatus 1 includes a compressor 4 that has a flow in/out port 4d through which a refrigerant is capable of flowing out and flowing in, in fluid communication with a compression room 4c; pipes 21, 22 disposed at a suction side of the compressor 4; a pipe 25 connected to the flow in/out port 4d of the compressor 4; a pipe 27 that has one end connected to the pipe 25 and an opposite end connected to the pipe 21; and a second solenoid valve 13 for opening and closing a fluid passage of the pipe 27.

公开(公告)号：US20200173694A1

公开(公告)日：2020-06-04

申请号：US16444162

申请日：2019-06-18

申请人： HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.

发明人： Hiroaki KANEKO ,  Shoutaro YAMAMOTO

IPC分类号： F25B13/00 ,  F25B1/00

摘要： An air-conditioning device including multiple outdoor units and an indoor unit through a pipe includes a control section that obtains a degree of supercooling at an outlet of a supercooling circuit of each outdoor unit based on a temperature detected by a temperature sensor that detects the temperature of refrigerant having passed through the supercooling circuit of each outdoor unit, obtain a target value of the degree of supercooling based on the obtained multiple degrees of supercooling, and perform the control of increasing the rotation speed of a compressor of an outdoor unit having a higher degree of supercooling than the target value and decreasing the rotation speed of a compressor of an outdoor unit having a lower degree of supercooling than the target value such that a difference in the degree of supercooling at the outlet of the supercooling circuit of each outdoor unit is decreased.