Kabushiki Kaisha Toshiba

Haruhiko Hata

Akira Ito

Hajime Mori

Kunihiko Kinugasa

Toshihiro Yasuda

Kazuo Sudo

Masakazu Abura

Yasushi Kanazawa

Yasuhiro Sakai

Yuki Minato

Yuichi Motora

Kiyofumi Saiki

Kozue Matsukawa

Tomoki Fujita

An apparatus for reinforcing a jet pump riser includes: an elbow upper clamp for covering a riser elbow coupled to a thermal sleeve from an upper side thereof; an elbow lower clamping member for clamping the riser elbow from a lower side thereof; an elbow vertical portion clamping member for covering a vertical portion of the riser elbow; and an elbow horizontal portion clamping member for covering a horizontal portion of the riser elbow. These members are disposed in different orientations with respect to the elbow upper clamp so as to fix the thermal sleeve, the riser elbow and the riser pipe.

Apparatus and method for reinforcing jet pump riser

A bolt fixing device is configured so that a lock cap is pushed up by elastic force of an elastic member and engages upper surface teeth with lower surface teeth, the upper surface teeth being formed on the upper surface of a flange of a lock cap, the lower surface teeth being formed on the lower surface of an engagement flange of a body housing. Thus, the head bolt of a jet pump beam is fixed. With the configuration, when installing an inlet mixer, the head bolt of the jet pump beam is simply and reliably locked against rotation.

Jet pump and bolt fixing device of jet pump beam

Growing community of inventors

Yokohama, Japan

Haruhiko Hata