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:
Dec. 28, 2010
Filed:
Aug. 26, 2003
Kouji Yamashita, Tokyo, JP;
Tsuyoshi Uchida, Tokyo, JP;
Tatsuya Ishii, Tokyo, JP;
Katsumi Takeda, Tokyo, JP;
Hideshi Oinuma, Tokyo, JP;
Kenichiro Nagai, Tokyo, JP;
Kouji Yamashita, Tokyo, JP;
Tsuyoshi Uchida, Tokyo, JP;
Tatsuya Ishii, Tokyo, JP;
Katsumi Takeda, Tokyo, JP;
Hideshi Oinuma, Tokyo, JP;
Kenichiro Nagai, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Chiyoda-Ku, Tokyo, JP;
Japan Aerospace Exploration Agency, Chofu-shi, Tokyo, JP;
Abstract
Air conditioning equipment that ensures sufficient noise reduction in the low frequency range of a few hundred hertz or below. The air conditioning equipment is characterized by including a heat exchanger for exchanging heat between air and refrigerant of a refrigeration cycle, a fan that supplies air to the heat exchanger, an air duct in which the fan is installed and through which acoustic waves are propagated, and a plurality of small holes that blows a jet into the air duct and sucks a jet from the air duct by a pressure difference between the blow side and the suction side of the fan.