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. 05, 2011
Filed:
Dec. 09, 2004
Shigeru Shirai, Osaka, JP;
Yasuhiro Umekage, Osaka, JP;
Kazushige Nakamura, Osaka, JP;
Mitsuyuki Furubayashi, Osaka, JP;
Keiko Yasui, Osaka, JP;
Koji Oka, Osaka, JP;
Shigeru Shirai, Osaka, JP;
Yasuhiro Umekage, Osaka, JP;
Kazushige Nakamura, Osaka, JP;
Mitsuyuki Furubayashi, Osaka, JP;
Keiko Yasui, Osaka, JP;
Koji Oka, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A heat exchanger comprises a substantially pillar sheathed heater, a substantially cylindrical case, and a spiral spring. The sheathed heater is accommodated in the case. The spring is provided so as to be wound around an outer peripheral surface of the sheathed heater. Thus, a spiral flow path is formed among an outer peripheral surface of the sheathed heater, an inner peripheral surface of the case, and the spring. The spring functions as a flow velocity conversion mechanism, a turbulent flow generation mechanism, a flow direction conversion mechanism, and an impurity removal mechanism. A water inlet and a water outlet are respectively arranged at positions eccentric from a central axis of the case on a side surface of the case.