Kawasaki Jukogyo Kabushiki Kaisha

Yoshichika Sato

Hayato Iwasaki

Katsuya Umemoto

Takafumi Ito

Satoru Takao

Atsushi Horikawa

Yousuke Tsumura

Ryozo Tanaka

Ryoji Tamai

Yosuke Tsumura

Toshiyuki Yamamoto

Yoshinobu Sakano

Atsushi Hisano

Youta Sakurai

Hiromu Kamiya

A gas turbine combustor includes: a tubular body; an air passage; and a resonator. The air passage includes: an upstream region that extends along an outer peripheral surface of the tubular body; a downstream region that extends along an inner peripheral surface of the tubular body and is located at a first side of the combustion chamber in the axial direction; and a direction change region that connects the upstream region to the downstream region in a radial direction of the tubular body and is adjacent to the upstream region such that an area of a section of the air passage which is orthogonal to the axial direction changes at a position between the upstream region and the direction change region. The opening is open toward a space of the air passage which is located downstream of the upstream region.

Gas turbine combustor

A variable valve mechanism includes a cam that rotates about a rotating shaft in association with rotation of a crank shaft of an engine, a swinging arm that is disposed between the cam and a valve and is pushed by the rotating cam to swing and push the valve by a first end portion of the swinging arm, and a moving device that moves a second end portion of the swinging arm. Further, there is a regulating member that is coupled to the first end portion of the swinging arm so as to be rotatable and regulates displacement of the first end portion of the swinging arm relative to the valve when the second end portion of the swinging arm is moved by the moving device. The mechanism further includes a connection member that connects the second end portion of the swinging arm to the moving device.

Variable valve mechanism

A sliding surface located to one side in the axial direction relative to the axially central position of a rotary shaft is supported by the slide surface of a supply shaft in a slidable manner in the axial direction, the slide surface being the surface on which sliding occurs. The portion located to the other side in the axial direction side relative to the axially central position of the rotary shaft is fixed to an output shaft. The sliding surface is positioned on the surface of a hard coating, and the hard coating is positioned so as to cover a part of a substrate made of a GFRP. The slide surface is positioned on the surface of a hard coating, and the hard coating is positioned so as to cover a part of a substrate made of a GFRP.

Superconducting rotating machine

A rotating body includes a rotating body core, and a plurality of blades provided at an outer or inner circumference of the rotating body core at equal intervals in a circumferential direction, and connected circumferentially via an annular connection portion provided separately from the rotating body core. A resonance frequency under a two nodal diameter number mode of the rotating body is lower than or equal to a rotational secondary harmonic frequency with respect to a rated rotation speed. Where Nrepresents an order of a maximum mistuned component among order components of circumferential distribution of mass, rigidity or natural frequency of the blades, arrangement of the blades satisfies N&#x2265;5, and has order components each having ratio less than 1/2, in which the ratio is obtained by dividing the order component by the magnitude of the component of the order N.

Rotating body provided with blades

A field rotor of a superconducting rotating machine including: a rotation shaft; a supply shaft that supplies a refrigerant to the rotation shaft at one end of the rotation shaft; an input/output shaft provided at the other end of the rotation shaft so as to integrally rotate with the rotation shaft; and a superconducting coil held on a circumferential surface of the rotation shaft to be cooled by the refrigerant, wherein the supply shaft and the input/output shaft are fixed to each other so as to rotate integrally with each other, and the rotation shaft and the supply shaft are at least partly brought in contact with each other in order to allow the rotation shaft to be supported by the supply shaft and in order to be slidably fitted to each other in a circumferential direction of the rotation shaft and in an axial direction of the rotation shaft.

Field rotor of superconducting rotating machine

A field rotor of a superconducting rotary machine, includes a rotary shaft, a plurality of coil boxes, and a plurality of superconducting coils. The coil boxes extend in a center axis direction of the rotary shaft, have walls defining spaces within the coil boxes, respectively, and are removably fastened to a peripheral surface of the rotary shaft. The superconducting coils are disposed in the spaces of the coil boxes, respectively, and constitute field windings of the superconducting rotary machine.

Growing community of inventors

Kakogawa, Japan

Yoshichika Sato