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:
Sep. 30, 2008
Filed:
May. 10, 2005
Tetsurou Hamada, Hyogo, JP;
Hitoshi Hara, Hyogo, JP;
Hideaki Yoshitomi, Hyogo, JP;
Kozo Uehara, Hyogo, JP;
Hiroaki Takashima, Hyogo, JP;
Mitufuku Asakawa, Hyogo, JP;
Tetsurou Hamada, Hyogo, JP;
Hitoshi Hara, Hyogo, JP;
Hideaki Yoshitomi, Hyogo, JP;
Kozo Uehara, Hyogo, JP;
Hiroaki Takashima, Hyogo, JP;
Mitufuku Asakawa, Hyogo, JP;
Noritz Corporation, Hyogo, JP;
Abstract
A heat exchanger Aincludes a coiled tubeincluding a plurality of loopsand a spacesurrounded by the coiled tubeand having an end closed by a partitionThe heat exchanger is so designed that combustion gas flows from the spaceto a combustion gas pathby passing through clearancesof the loopsof the coiled tubeThe loopsare made of a tube having a thickness tand a width Lwhich is larger than the thickness, so that the amount of heat recovery when the combustion gas passes through the clearancesis large. Therefore, the heat exchange efficiency is enhanced while simplifying the overall structure of the heat exchanger Aand reducing the size of the heat exchanger.