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. 23, 2014
Filed:
Apr. 02, 2010
Masanobu Watanabe, Yokohama, JP;
Kunihiko Kinugasa, Yokohama, JP;
Tsuyoshi Hagiwara, Kawasaki, JP;
Masahiko Warashina, Chigasaki, JP;
Jun Suzuki, Yokohama, JP;
Masanobu Watanabe, Yokohama, JP;
Kunihiko Kinugasa, Yokohama, JP;
Tsuyoshi Hagiwara, Kawasaki, JP;
Masahiko Warashina, Chigasaki, JP;
Jun Suzuki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A jet pump which can restrain self-excited vibration in a connection portion between an inlet mixer pipe and a diffuser pipe without inhibiting a structural deformation due to thermal expansion and the like includes a slip joint structure connecting the inlet mixer pipe and the diffuser pipe to each other by inserting the inlet mixer pipe into an upper end opening of the diffuser pipe with a clearance left therebetween; and a self vibration damping structure configured such that when the clearance defined by an outer pipe wall of the inlet mixer pipe and an inner pipe wall of the diffuser pipe is widening or narrowing due to vibration of the inlet mixer pipe or the diffuser pipe, a flow path resistance inside a clearance flow path for pumped coolant water defined by the clearance is not smaller than a fluid inertia force all over the clearance flow path.