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:
Oct. 15, 2019
Filed:
Mar. 28, 2016
Mitsubishi Heavy Industries Thermal Systems, Ltd., Tokyo, JP;
Central Glass Co., Ltd., Ube-shi, Yamaguchi, JP;
Noriyuki Matsukura, Tokyo, JP;
Kenji Ueda, Tokyo, JP;
Naoki Kobayashi, Tokyo, JP;
Ryosuke Suemitsu, Tokyo, JP;
Norihisa Horaguchi, Tokyo, JP;
Satoru Okamoto, Kawagoe, JP;
Yoshio Nishiguchi, Kawagoe, JP;
MITSUBISHI HEAVY INDUSTRIES THERMAL SYSTEMS, LTD., Tokyo, JP;
CENTRAL GLASS CO., LTD., Yamaguchi, JP;
Abstract
An object of the present invention is to provide a refrigerant circulation device and method that can suppress acid generation caused by decomposition of a refrigerant containing an HFO or HCFO. The refrigerant circulation device has a compressor, a condenser, expansion valves and an evaporator connected by a main pipe to form a refrigerant circulation circuit through which a refrigerant is circulated, the refrigerant circulation circuit being filled with a refrigerant containing a hydrofluoroolefin or a hydrochlorofluoroolefin having a carbon-carbon double bond within the molecular structure, wherein the refrigerant circulation device includes a drive that drives the compressor via a speed increaser, and a drive cooling unit that cools the drive with the refrigerant condensed in the condenser, and a desiccant that can trap moisture is disposed in the evaporator or the drive cooling unit.