Ihi Corporation

Ihi Rotating Machinery Engineering Co., Ltd.

Nozomu Asano

Wataru Ueda

Shusaku Yamasaki

Yuichiro Nakayama

Miki Shinagawa

Yasushi Dodo

Toshimichi Taketomi

An oscillation jig includes: an oscillation jig base connected to an oscillation table; a first clamp member provided in the oscillation jig base; a second clamp member located at a position opposed to the first clamp member in an oscillation direction and configured to hold a first metal component together with the first clamp member; a link mechanism provided in the oscillation jig base, composed of a plurality of links connected together, connected to the second clamp member, and caused to extend and contract in the oscillation direction; and a clamp actuator configured to cause the link mechanism to extend and contract in the oscillation direction. When the first clamp member and the second clamp member hold the first metal component, a connection center line connecting connection centers of the respective links is made straight in the oscillation direction.

Linear friction welding apparatus

The present invention is a turbo machine that is provided with an impeller that is rotated, and with a shaft that transmits rotation power to this impeller, wherein there is provided a differential screw having an impeller screw portion that is provided at one end thereof and that is screwed into the impeller, and having a shaft screw portion that is provided at another end thereof and that is screwed into the shaft, and that fastens the impeller and the shaft together, and wherein, in the differential screw, a thread diameter of thread ridges that are formed on the impeller screw portion is formed the same as a thread diameter of thread ridges that are formed on the shaft screw portion, and a screwing direction of the thread ridges that are formed on the impeller screw portion is formed as the same direction as a screwing direction of the thread ridges that are formed on the shaft screw portion, and a pitch between the thread ridges that are formed on the impeller screw portion is formed smaller than a pitch between the thread ridges that are formed on the shaft screw portion.

Turbo machine

Growing community of inventors

Tokyo, Japan

Nozomu Asano