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:
Apr. 15, 2014
Filed:
Feb. 13, 2012
Junji Ono, Shibata, JP;
Hideharu Ohama, Murakami, JP;
Toshiki Shirahata, Shibata, JP;
Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, JP;
Abstract
The present invention aims to provide a stationary equipment installed in a sealed space on a space-saving basis and having a favorable cooling efficiency. The stationary equipment includes an equipment main body containing an iron core, a coil and insulating oil, a hollow pipe connected to the equipment main body to circulate the insulating oil in it and a plurality of hollow corrugated fins disposed on the pipe. The pipe and the corrugated fins are covered with a hood, a duct is connected to the hood and the duct is connected to an elongated cylindrical member vertically disposed on an inner wall of the tower to increase airflow by stack effect to increase a cooling efficiency in a wind power generation device.