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. 13, 2007
Filed:
May. 13, 2003
Yoshihisa Tamura, Tokyo, JP;
Masataka Koyatsu, Tokyo, JP;
Akito Machida, Tokyo, JP;
Mayekawa Mfg. Co., Ltd., Tokyo, JP;
Abstract
In order to provide a thermo-siphon chiller refrigerator for use in cold districts which performs natural refrigerant-circulation refrigerating cycle and also can perform a forced refrigerant-circulation refrigerating cycle when outside air temperature is high by using an indoor heat exchanger, an outdoor heat exchanger, and a compressor, and combining them with refrigerant piping, the thermo-siphon chiller refrigerator for use in cold districts of the invention has a compressor () additionally installed to a natural refrigerant-circulation refrigerating system comprising an outdoor heat exchanger (), an indoor heat exchanger () located at a position lower than that of the outer heat exchanger (), and an expansion valve (). When the refrigerating capacity of the natural refrigerant-circulation refrigerating system is not sufficient, the additional compressor () is operated to perform a forced refrigerant-circulation cycle i.e. a vapor compression refrigerating cycle.