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. 08, 2011
Filed:
Jan. 25, 2008
Masaaki Imai, Osaka, JP;
Yoshinori Inoue, Hyogo, JP;
Hiroaki Hayase, Osaka, JP;
Sasakura Engineering Co., Ltd., Osaka, JP;
Abstract
In an apparatus comprising: an evaporatorfor boiling and evaporating a cold/heat evaporable liquid under a reduced pressure; a condenserfor condensing vapor; a cold/heat indirect heat exchangerat a loadside; a cooling heat exchangerusing the air; cold-heat circulation meansandfor circulating a cold/heat evaporable liquid in the evaporator to the cold/heat indirect heat exchanger; cooling circulation meansandfor circulating a cooling evaporable liquid in the condenser to the cooling heat exchanger; and a vapor compressorprovided in a vapor ductextending from the evaporator to the condenser, a running cost is reduced when a temperature at the condenser side becomes lower than a temperature at the evaporator side due to a drop in air temperature, without a rise in a temperature of the cold/heat evaporable liquid. The vapor ductis provided with a bypass vapor pathfor bypassing the vapor compressor. The bypass vapor path is provided with an on-off valve. When a temperature at the condenser side becomes lower than a temperature at the evaporator side, the vapor compressor is shut down and the on-off valve is opened.