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:
Sep. 13, 2022
Filed:
Jun. 28, 2018
Mitsubishi Heavy Industries Thermal Systems, Ltd., Tokyo, JP;
Central Glass Company, Ltd, Ube, JP;
Ryosuke Suemitsu, Tokyo, JP;
Kenji Ueda, Tokyo, JP;
Yasushi Hasegawa, Tokyo, JP;
Kazuki Wajima, Tokyo, JP;
Yoshinori Akamatsu, Tokyo, JP;
Fuyuhiko Sakyu, Saitama, JP;
Kanako Osafune, Saitama, JP;
Mitsubishi Heavy Industries Thermal System, Ltd., Tokyo, JP;
Central Glass Co., Ltd., Ube, JP;
Abstract
It is an object of the present invention to provide a heat pump that can use, as a refrigerant, a substance with which a geometric isomer exists, and a method for designing the same. The present invention is a method for designing a heat pump () whose closed circuit configured by connecting a compressor (), a condenser (), an expansion valve (), and an evaporator () in this order is filled with a refrigerant containing a refrigerant substance with which a geometric isomer may exist, the method including obtaining an upper limit of stable temperature at which isomerization of the refrigerant substance does not proceed, and setting an upper limit usage temperature of the heat pump () so as not to exceed the upper limit of the stable temperature.