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. 22, 2002
Filed:
May. 16, 2001
Kenji Matsumura, Shimizu, JP;
Susumu Nakayama, Shizuoka, JP;
Hitachi Air Conditioning Systems Co., Ltd., Chiyoda-ku, JP;
Abstract
In order to magnify capacity control of a refrigeration cycle for an increased efficiency and achievement of compactness, the refrigeration cycle includes a compressor, a four-way valve, a heat exchanger on a side of a heat source, a liquid receiver, a heat exchanger on a side of use, and an electronic expansion valve, all of which are connected other by pipes, and comprises a refrigerant circulating in the refrigeration cycle and being a non-azeotropic refrigerant, a second liquid receiver for taking out a refrigerant vapor from an upper portion of the liquid receiver to condense and store the refrigerant, and a pipe connecting the second liquid receiver to the liquid receiver via a shut-off valve.