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. 26, 2002
Filed:
Sep. 17, 2001
Chun-cheng Piao, Osaka, JP;
Ryuichi Sakamoto, Osaka, JP;
Yuji Watanabe, Osaka, JP;
Manabu Yoshimi, Osaka, JP;
Kazuo Yonemoto, Osaka, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A first channel ( ) is formed by sequentially connecting a compressor ( ), a vapor separator ( ), a heat exchanger ( ) and an expander ( ). In the first channel ( ), a room air is taken as a primary air and discharged to outdoors. A second channel ( ) is formed by connecting a heat exchanger ( ) to a second inlet duct ( ) and a second outlet duct ( ). In the second channel ( ), an outside air is taken as a secondary air and supplied to a room. The vapor separator ( ) is connected to a vacuum pump ( ). The vapor separator ( ) separates vapor from the compressed primary air to dehumidify the primary air to or below the absolute humidity of the outside air. The vapor separated by the vapor separator ( ) is partly supplied to the secondary air in the second outlet duct ( ). Then, the secondary air thus humidified is supplied to the room.