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:
Nov. 25, 2025
Filed:
Nov. 07, 2022
Daikin Industries, Ltd., Osaka, JP;
Yuuta Iyoshi, Osaka, JP;
Yoshiki Yamanoi, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A refrigeration cycle system includes: a heat source circuit including a secondary-side compressor, a cascade heat exchanger, a secondary-side switching mechanism, and a suction flow path; a plurality of utilization circuits respectively including utilization-side heat exchanger; a first communication pipe; a second communication pipe; a third communication pipe; a connection path; and a first on-off valve. The first communication pipe and the first heat source pipe connect the plurality of utilization-side heat exchangers and the secondary-side switching mechanism. The second communication pipe and the second heat source pipe connect the plurality of utilization-side heat exchangers and suction flow path. The third communication pipe, the fourth heat source pipe, and the fifth heat source pipe connect the plurality of utilization-side heat exchangers and the cascade heat exchanger. The connection path connects the first communication pipe and the second communication pipe. The first on-off valve switches between a state in which the first communication pipe and the second communication pipe connect and a state in which they do not connect.