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:
Jan. 07, 2020
Filed:
Apr. 13, 2016
Hitachi, Ltd., Chiyoda-ku, Tokyo, JP;
Sachio Sekiya, Tokyo, JP;
Masanao Kotani, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a refrigeration cycle device, a compressor, a heat exchanger serving as a condenser, an expansion valve, and a heat exchanger serving as an evaporator are connected in order through refrigerant piping to form a refrigeration cycle. The refrigeration cycle device includes an evaporation temperature sensor provided between the expansion valve and the exchanger serving as the evaporator. The opening degree of the expansion valve is controlled such that an evaporation temperature detected by the evaporation temperature sensor reaches a control target value of the evaporation value. As a result, the refrigeration cycle device capable of achieving enhanced controllability while preventing liquid back to the compressor is provided.