Toshiba Energy Systems & Solutions Corporation

Kabushiki Kaisha Toshiba

Nitto Kohki Co., Ltd.

Norikazu Takagi

Shogo Iwai

Tsuguhisa Tashima

Takahiro Ono

Yoshifumi Iwasaki

Haruki Nakao

Daichi Fukabori

Tomohiro Tejima

Tomomi Okuyama

Koki Nishimura

Daisuke Nomura

Jiro Maegawa

According to an embodiment, a gas turbine includes: a casing; a rotor shaft penetrating through the casing; a plurality of turbine stages which are in the casing and are arranged along an axial direction of the rotor shaft and through which a working fluid passes; two bearings disposed on outer sides of the casing in terms of the axial direction and supporting the rotor shaft in a rotatable manner; and a plurality of outlet pipes through which the working fluid having finished work in the turbine stages is discharged. The outlet pipes are provided in an upper half and a lower half of the casing.

Gas turbine and gas turbine manufacturing method

According to an embodiment, a turbine stator blade disposed in a working fluid flow path in a casing of a gas turbine, includes: a blade effective part disposed in the working fluid flow path; an outer circumferential sidewall having a plate-shaped part that is connected to a radially outer end portion of the blade effective part, and hooks each extending radially outward and circumferentially from the plate-shaped part and having a tip engaged with the casing; and an inner circumferential sidewall connected to a radially inner end portion of the blade effective part. At least one slit is formed at the rear hook or front hook to divide the hook in a circumferential direction, and the hook has a seal member to seal the slit.

Turbine stator blade

A turbine rotor of an embodiment includes a rotor body portion having turbine discs in plural stages in an axial direction protruding radially outside from an outer peripheral surface of the rotor body portion over a circumferential direction. The turbine rotor includes a plurality of axial passages, through which a cooling medium flows, formed at the rotor body portion radially outside than a center axis of the turbine rotor and radially inside than an outer peripheral surface of the rotor body portion in the axial direction; an introduction passage introducing the cooling medium into each of the axial passages; and discharge passages that penetrate from each of the axial passages to the outer peripheral surface of the rotor body portion to discharge the cooling medium.

Turbine rotor

An axial flow turbine according to an embodiment includes: an outer casing; an inner casing provided inside the outer casing; a discharge pipe that is welded and joined to the outer casing and through which a working fluid discharged from the axial flow turbine flows; a sleeve that is provided inside the outer casing and the discharge pipe and guides the working fluid discharged from the axial flow turbine to the discharge pipe; a tubular member that is provided over an outer periphery of the sleeve inside the outer casing and the discharge pipe and covers an inner periphery side of a joint portion between the outer casing and the discharge pipe; an introduction port that introduces a cooling medium into a space demarcated by the outer casing, the discharge pipe, and the tubular member; and a discharge port that discharges the cooling medium introduced into the space.

Axial flow turbine

A steam turbine according to an embodiment includes an outer casing, an inner casing, a turbine rotor, and a pair of inner casing regulating portions. The pair of inner casing regulating portions regulates movement of the inner casing in a direction orthogonal to an axial direction of the turbine rotor. The pair of inner casing regulating portions is disposed beneath the inner casing at positions different from each other in the axial direction and is supported by a regulating supporting portion extending upward from a bottom portion of the outer casing.

Steam turbine

A sealing structure according to the embodiment includes a first cylinder, a second cylinder, an intermediate cylinder, a first sealing part, and a second sealing part. The first cylinder forms a flow passage of a working fluid of a turbine therein. The second cylinder is disposed at one end of the first cylinder and downstream from the flow passage. The intermediate cylinder is disposed between the first and second cylinders. The first sealing part is disposed at one of a first region between the first cylinder and the intermediate cylinder and a second region between the second cylinder and the intermediate cylinder, and follows a positional displacement in a radial direction. The second sealing part is disposed at the other of the first and second regions, and follows a positional displacement in an axial direction.

Sealing structure and turbine

A pneumatic massage apparatus making it possible to perform even more efficient drainage is provided. A pneumatic massage apparatus includes a massage device to be fitted to wrap around at least one of an arm or leg of a patient and having a plurality of air chambers disposed in series in a proximal direction from a distal position of the at least one of an arm and a leg toward the center of the patient's body, and a compressed air control unit configured to supply compressed air into the plurality of air chambers to pressurize them, and discharge compressed air from the plurality air chambers to depressurize them. The compressed air control unit is configured to depressurize the pressurized air chambers in such a manner that, of any pair of mutually adjacent air chambers, a proximal air chamber of the pair first starts to be depressurized, and then a distal air chamber of the pair starts to be depressurized.

Pneumatic massage apparatus for treatment of edema and method for massaging patient's body with the apparatus

A stationary part sealing structureof an embodiment has an insertion grooveformed annularly across a circumferential direction in a wall surfaceand having a groove partand projectionsprojecting respectively from both side faces of the groove partso as to narrow an openingof the groove part, an insertion grooveformed annularly across a circumferential direction in a wall surfacewhich opposes the insertion grooveand having a groove partand projectionsprojecting respectively from both side faces of the groove partso as to narrow an openingof the groove part, and a platy annular sealing memberhaving an outer diameter side endinserted in the insertion grooveand an inner diameter side endinserted in the insertion groove

Growing community of inventors

Kawasaki, Japan

Norikazu Takagi