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:
Nov. 05, 2013
Filed:
Mar. 20, 2007
Tomoyuki Inoue, Hyogo, JP;
Naoki Ogawa, Hyogo, JP;
Hiroshi Hirano, Hyogo, JP;
Masao Shiota, Hyogo, JP;
Tomoyuki Inoue, Hyogo, JP;
Naoki Ogawa, Hyogo, JP;
Hiroshi Hirano, Hyogo, JP;
Masao Shiota, Hyogo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
An object is to provide a heat transfer tube support structure capable of preventing deterioration of the reliability and the durability of a heat transfer tube. In a steam generator (heat exchanger) having a lower barrel (vessel), heat transfer tubes disposed in the lower barrel, and tube support plates disposed in the lower barrel and having heat transfer tube insertion holes opened in a thickness direction, support portions for supporting the heat transfer tubes are formed to the intermediate portions of the inner surfaces of the heat transfer tube insertion holes in the axial direction of the heat transfer tube insertion holes, and the regions between the support portions and the respective open ends of the heat transfer tube insertion holes are formed of inclined surfaces inclining in a radial direction outwardly in the heat transfer tube insertion holes toward the open ends, respectively.