Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Compressor Corporation

Mitsubishi Heavy Industires, Ltd

Kyoichi Ikeno

Toyoaki Yasui

Yuichi Sasaki

Yuya Konno

Masaki Kawano

Nobuyori Yagi

Yoichiro Tsumura

Naoyuki Nagai

Yuzo Tsurusaki

Shin Yanagisawa

Yoshikazu Yamada

Katsuyasu Hananaka

Yasuhiko Kawamura

Ken Nishitani

Yuki Nakamura

Shugo Iwasaki

Sadamu Takahashi

Takamasa Hirai

Tomoyoshi Sasaki

The measuring jig for the rotary machine is a measuring jig for a rotary machine including a casing that extending about an axis, a rotor that is disposed in the casing and extends in an axial direction about the axis, and a plurality of bearings that are disposed at intervals in the axial direction and supports the rotor in the casing. The measuring jig includes a plurality of casing fixing portions that are respectively attachable to and detachable from bearing holding portions to which the bearings are attached in the casing; a main member that extends in the axial direction so as to connect the plurality of casing fixing portions to each other; an arm that extends from the main member in an orthogonal direction orthogonal to the axial direction; and a reference surface that is disposed at a distance from a measurement target part of the casing.

Measuring jig for rotary machine and member management method for rotary machine

A lifting jig can lift a rotor and a diaphragm of a steam turbine including a casing that covers the rotor that can be divided with a division surface and the diaphragm that can be divided into an upper half diaphragm and a lower half diaphragm with a division surface. A lifting jig has a diaphragm fixing unit that can be fixed to the upper half diaphragm, a first rotor supporting unit that is integrally formed with a diaphragm fixing unit and can support one end portion of the rotor in an axial direction, and a second rotor supporting unit that is integrally formed with the diaphragm fixing unit and can support the other end portion of the rotor in the axial direction.

Lifting jig, disassembling method of steam turbine, component replacement method of steam turbine, and manufacturing method of steam turbine

A turbine rotor blade assembly in which values A, CF, T, and L are set to satisfy the following expression in two-dimensional coordinates, 1.2&#xd7;10&#x2264;(A&#xd7;CF)/(T&#xd7;L)&#x2264;17&#xd7;10, where (A&#xd7;CF)/(T&#xd7;L) is an expression (1), A is an arm length [mm] of each of turbine rotor blades, CF is centrifugal force [kgf] occurring on each of the turbine rotor blades, T is a thickness [mm] of each of shrouds, and L is a lap amount [mm] of the shrouds adjacent to each other.

Turbine rotor blade assembly

A turning device includes: a pinion gear having spur teeth that mesh with a wheel gear provided on a rotary shaft; an arm member that rotatably supports the pinion gear; an ON/OFF mechanism that operates the arm member such that the pinion is brought close to the wheel gear, in a meshed position, with respect to the wheel gear and such that the pinion is separated radially outward from the wheel gear, in a retracted position; and a supporting device that supports the pinion in an axial direction of the pinion.

Turning device and rotating machine

A rotating body includes a rotor diskthat has a moving blade fitting groovethat is annularly provided along the outer circumference and a moving blade lead-in holethat is provided in the outer circumference and is in communication with the moving blade fitting groove; a plurality of moving bladesthat are consecutively provided in the outer circumference and that each have a blade rootthat is fitted in the moving blade fitting grooveand a wing bodythat projects to the outer side of the rotor disk; two special moving bladesA andB that each have a blade rootof which a portion is fitted in the moving blade fitting grooveand a wing bodythat projects to the outer side of the rotor disk, and that by mutually adjoining block the moving blade lead-in hole; and a tensioning keythat is inserted between the moving blades, in which the tensioning keyis provided with an insertion portion whose thickness dimension in the circumferential direction gradually increases from one end on the inner side in the radial direction toward the other end on the outer side in the radial direction.

Rotating body

A component for a rotary machine which is configured such that a hard film composed of ceramics and an anti-fouling film composed of a fluorine-containing diamond-like carbon film are laminated on the surface of a base material, and which has superior drain erosion resistance and fouling resistance in an environment where a gas comes in direct contact therewith.

Component for rotary machine

The bearing device has a bearing housing which is supported by a bearing base mounted on a body of a rotary machine equipped with a rotating shaft and through which the rotating shaft penetrates at the center and a plurality of pads which are arranged inside the bearing housing so as to circumferentially surround the rotating shaft and rotatably support the rotating shaft. A contact surface between an outer circumference of the bearing housing and an inner circumference of the bearing base extends along the axial direction of the rotating shaft and forms a convex curved surface protruding outward, and the bearing housing is slidably supported by the bearing base via the contact surface of the convex curved surface. At least either the inner circumference of the bearing housing or the outer circumference of the pad forms a curved surface extending along the axial direction, and a distance between the inner circumference of the bearing housing and the outer circumference of the pad gradually increases from the center towards the ends along the axial direction.

Bearing device and rotary machine

In a part for a rotary machine, a ceramic hard film is formed on a surface of a base material, the density of droplets which exist in a surface of the ceramic hard film is set to be within 1000 pieces/mm, and the density of droplets whose mean particle diameter is 1 &#x3bc;m or less is set to be within 550 pieces/mm. A method for manufacturing the part of a rotary machine is a method for forming the ceramic hard film by at least an ion plating method or a sputtering method.

Part for rotary machine, and manufacturing method therefor

A solid particle erosion resistant surface treated coating has a solid particle erosion resistance that is largely enhanced and a rotating member having the coating gains oxidation resistance without deteriorating a fatigue strength. Also, a rotating machine can have this coating applied thereto. The solid particle erosion resistant surface treated coating has a nitrided hard layer formed on a surface of a base material and a PVD (physical vapor deposition) hard layer of at least one layer formed on the nitrided hard layer by a PVD method. Deformation of the base material by collisions by solid particles is prevented and cracking of the coating is prevented. Thereby, the solid particle erosion resistance is secured, life of the solid particle erosion resistant surface treated coating can be increased and oxidation resistance and fatigue strength are enhanced.

Growing community of inventors

Hiroshima, Japan

Kyoichi Ikeno