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. 06, 2011
Filed:
Sep. 28, 2006
Yoshiyuki Kondo, Hyogo-ken, JP;
Koichi Tanimoto, Hyogo-ken, JP;
Shigeki Suzuki, Hyogo, JP;
Yoshikazu Nitta, Hyogo, JP;
Toshikatsu Hasunuma, Hyogo, JP;
Yoshiyuki Kondo, Hyogo-ken, JP;
Koichi Tanimoto, Hyogo-ken, JP;
Shigeki Suzuki, Hyogo, JP;
Yoshikazu Nitta, Hyogo, JP;
Toshikatsu Hasunuma, Hyogo, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
An object is to prevent thermal fatigue, resulting from variations in temperature interfaces, of piping having a fluid-mixing region where fluids of different temperatures are mixed. Pipinghaving a fluid-mixing region M includes a reducerincluding an end portiondisposed substantially on a central axis of a main pipe. Low-temperature water flows through the reducerat a lower velocity than high-temperature water flowing outside the end portion. The low-temperature water and the high-temperature water have different temperatures. The low-temperature water and the high-temperature water are mixed in the fluid-mixing region M downstream of the reducer. The reducerhas a weld lineformed to connect the end portionand an elbow portiontogether. The distance between the weld lineand a downstream endis equal to or larger than the inner diameter D of the main pipe