The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 2021
Filed:
Nov. 27, 2018
Hitachi-johnson Controls Air Conditioning, Inc., Tokyo, JP;
Hiroki Kinoshita, Tokyo, JP;
Kazuhiro Tsuchihashi, Tokyo, JP;
Naoyuki Fushimi, Tokyo, JP;
Toshiki Mochizuki, Tokyo, JP;
Shuntaro Inoue, Tokyo, JP;
Masayoshi Murofushi, Tokyo, JP;
Yoshinori Iwashina, Tokyo, JP;
Kazuhiko Tani, Tokyo, JP;
HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC., Tokyo, JP;
Abstract
A refrigerant flow path switch arranged between an outdoor device and each of multiple indoor devices controls a refrigerant flow and is provided with a housing; a refrigerant flow path switching circuit having multiple refrigerant flow path switching circuits, wherein each refrigerant flow path switching circuit includes a high/low pressure gas pipe, a low pressure gas pipe, a high/low pressure electric valve provided at the high/low pressure gas pipe, and a low pressure electric valve provided at the low pressure gas pipe. A liquid pipe assembly is arranged in the housing and has multiple liquid pipes connected to the multiple indoor devices. A first divider plate is provided between adjacent ones of the refrigerant flow path switching circuits and divides an internal space of the housing such that a space divided by the first divider plate is in a substantially cubic shape, which is filled with a foaming agent.