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:
Jul. 28, 2015
Filed:
Jun. 01, 2011
Gaku Oinuma, Tokyo, JP;
Noboru Wada, Tokyo, JP;
Yasuhiro Tanimura, Tokyo, JP;
Takayoshi Shimada, Tokyo, JP;
Katsuhiko Kibe, Tokyo, JP;
Gaku Oinuma, Tokyo, JP;
Noboru Wada, Tokyo, JP;
Yasuhiro Tanimura, Tokyo, JP;
Takayoshi Shimada, Tokyo, JP;
Katsuhiko Kibe, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
The present invention provides a method for reducing concentrations of ozone and nitric acid produced in cooling air flowing through a circulating airflow path of a rotary electric machine, the method including: disposing an ozone decomposition unit containing an ozone decomposition catalyst in the circulating airflow path; and allowing the cooling air to pass through the ozone decomposition unit so as to decompose ozone and to suppress production of nitric acid. According to the present invention, the method and device are capable of reducing the concentrations of ozone and nitric acid produced in the cooling air flowing through the circulating airflow path of the rotary electric machine for a long period of time while preventing pressure loss.