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. 03, 2012
Filed:
Jul. 10, 2006
Koji Miyazaki, Fukuoka, JP;
Seiichi Tanaka, Fukuoka, JP;
Hiroyuki Shimooka, Fukuoka, JP;
Hiroshi Tsukamoto, Fukuoka, JP;
Koji Miyazaki, Fukuoka, JP;
Seiichi Tanaka, Fukuoka, JP;
Hiroyuki Shimooka, Fukuoka, JP;
Hiroshi Tsukamoto, Fukuoka, JP;
Kyushu Institute of Technology, Fukuoka, JP;
Abstract
A channel is formed as an asymmetric diffuser-shaped channel having a narrow channel on a diffuser inlet side and a wide channel on a diffuser outlet side. The narrow channel is communicated with a variable volume chamber which is provided therein with a piezoelectric element. Vibration generated by actuation of the piezoelectric element causes a pressure variation of a fluid in the variable volume chamber to generate a nozzle flow which in turn causes a smooth flow of the fluid from the wide channel to the narrow channel.