Mitsubishi Heavy Industries Limited

Mitsubishi Hitachi Power Systems, Ltd.

Mitsubishi Power, Ltd.

Hiroaki Kishida

Kentaro Tokuyama

Keisuke Matsuyama

Takayoshi Takashima

Kenji Sato

Hiroki Shibata

Shinji Akamatsu

Kiyoshi Fujimoto

Satoshi Tanimura

Kuniaki Aoyama

Tetsu Konishi

Masanori Yuri

Shunsuke Torii

Susumu Wakazono

Kotaro Miyauchi

Satoshi Mizukami

Taiki Kinoshita

Yasuro Sakamoto

Hiroyuki Sakaki

Mitsuo Hasegawa

Norihiko Nagai

Wataru Kugimiya

Akihiro Murakami

Toshinobu Ohara

Kohei Hidaka

Scott Cloyd

Yuta Hitomi

Bob Provitola

Brandon Ruiz

Takashi Maruo

A combustor component according to at least one embodiment of the present invention includes a cylindrical body which internally includes a combustion chamber, and includes a weld part where a plurality of through holes opening to the combustion chamber are formed, and a housing which is disposed on an outer circumferential side of the cylindrical body to cover a part of the weld part, and defines an acoustic damping space communicating with the combustion chamber via at least one of the through holes. The plurality of through holes in the weld part has a formation density which is higher in a first region of the weld part covered with the housing than in a second region of the weld part positioned outside the housing.

Combustor component, combustor, gas turbine, and manufacturing method for combustor component

A plurality of cooling passages extending in an axial direction are formed in a transition piece so as to be aligned in a circumferential direction and the axial direction. One or more downstream side passages are formed in a downstream side region (Rd) within one circumferential region. One or more upstream side passages are formed in an upstream side region Ru within the circumferential region. The total cross-sectional area per unit circumferential length of the one or more downstream side passages is larger than the total cross-sectional area per unit circumferential length of the one or more upstream side passages.

Transition piece, combustor provided with same, and gas turbine provided with combustor

A gas turbine combustor and a gas turbine; wherein inclined surfaces are provided on inner surfaces of side walls neighboring in a circumferential direction at downstream end portions of transition pieces of combustors, the inclined surfaces being configured to increase a passage area of the transition pieces, a ratio (S/P) is from 0 to 0.2, where (P) is a pitch dimension of first stage vanes, and (S) is a circumferential dimension from an intermediate point between neighboring transition pieces to an upstream end of a first stage vane closest in the circumferential direction; and a ratio (L/P) is from 0.3 to 0.55, where (P) is the pitch dimension, and (L) is an axial dimension from a downstream end of the transition piece to the upstream end of the first stage vane.

Gas turbine combustor transition piece including inclined surface at downstream end portions for reducing pressure fluctuations

A seal member assembly structure and assembly method, a seal member, and a gas turbine, wherein, in a state where first flange parts provided on a combustor transition piece are fitted into first fitting parts provided in seal members, protruding parts provided on the first flange parts are inserted into recessed parts provided in the first fitting parts.

Seal member assembly structure and assembly method, seal member, and gas turbine

A combustor panel having a plurality of cooling flow paths formed between the outer surface and the inner surface of the combustor panel. The cooling flow paths have inlets that open at the outer surface and introduce a cooling medium into their interior, and outlets that open at the inner surface and discharge the cooling medium flowing through their interior. Among the plurality of cooling flow paths, each of plurality of cooling flow paths extending from a position along the edge of an aperture of the combustor panel forms an aperture-vicinity flow path. Among the plurality of aperture-vicinity flow paths, each of the aperture-vicinity flow paths for which the inlet is formed closer to the aperture than the outlet forms an aperture-side inlet flow path. The number of the aperture-side inlet flow paths is greater than one-half of the all of the aperture-vicinity flow paths.

Combustor panel, combustor, combustion device, gas turbine, and method of cooling combustor panel

A gas turbine combustor is provided with a combustor basket where combustion gas flows, the combustion gas being produced by combustion of fuel injected from a nozzle, and a first resonance device and a second resonance device mounted on an outer surface of the combustor basket. The second resonance device is disposed on a downstream side from the first resonance device in a flow of the combustion gas and damps combustion oscillation of a frequency higher than the first resonance device. The first and second resonance devices are acoustic liners each having a housing mounted to the outer surface of the combustor basket. A resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket.

Gas turbine combustor

A cylinder of a combustor includes a cylinder body inside of which combustion gas flows, a jacket plate that covers the cylinder body from the outside and forms a fluid space into which high-pressure fluid flows between an inner peripheral surface of the jacket plate and an outer peripheral surface of the cylinder body, and a rib that connects the cylinder body and the jacket plate. The rib is connected to the cylinder body by a cylinder side end portion on the cylinder body side in a radial direction with respect to an axis of the cylinder body being welded from both sides in an axial direction of the axis. The rib is connected to the jacket plate by a jacket side end portion on the jacket plate side in the radial direction being welded from both sides in the axial direction.

Cylinder of combustor, method of manufacturing of cylinder of combustor, and pressure vessel

A combustor seal structure includes a first recess portion and a second recess portion that are provided on opposing faces in adjacent flange portions of a transition piece; a seal member body disposed across the first recess portion and the second recess portion; a first projection portion and a second projection portionthat are provided at each end portion in the width direction of the seal member body and are capable of being in contact with a first seal face of the first recess portion and a second seal face of the second recess portion; a first spring member whose base end portion is connected to one end portion in the width direction of the seal member body and whose distal end portion extends to the other end portion and is capable of being in contact with a second pressing face.

Combustor seal structure and a combustor seal

A gas turbine combustor is disposed in a casing interior space of a gas turbine. A combustor basket of the combustor is formed into a cylindrical shape by abutting ends of a curved panel member and welding the ends together along a welding line. A communication tube is provided for communication between an interior space of the combustor basket and an interior space of a combustor basket of an adjacent combustor. The position of the welding line of the combustor basket coincides with a connection position for connecting the communication tube to the combustor basket. A cooling air hole is disposed in the communication tube or in the combustor basket in the vicinity of the communication tube to introduce cooling air from the casing interior spaceto the interior of the combustor basket.

Gas turbine combustor and gas turbine

A repair method of a plate member disposed so as to separate a high-pressure space and a low-pressure space and having a cooling passage provided inside thereof along a surface thereof, comprising: removing a damaged portion generated in the plate member so as to expose the cooling passage; primarily filling an area where a material is removed so as to block the cooling passage and form an external shape of the plate member having no missing portion as compared to its original external shape; forming a first opening through which the cooling passage communicates with the low-pressure space on an upstream side, in a flow direction of a refrigerant in the cooling passage, of a position where the cooling passage is blocked; and forming a second opening through which the cooling passage communicates with the high-pressure space on a downstream side of the position where the cooling passage is blocked.

Repair method of plate member, plate member, combustor, ring segment, and gas turbine

A transition piece of a combustor that sends high temperature combustion gas to a turbine includes a cylindrical body wall and cooling air passages. The passages are formed in the body wall so as to extend in an axial direction thereof, and each of the passages has cooling air inlet ports opened at an outer circumferential surface of the transition piece and cooling air outlet ports opened at an inner circumferential surface of the transition piece. The cooling air outlet ports form a plurality of lines in a direction oblique with respect to the axial direction of the body wall. A first distance between a first line of the cooling air outlet ports and a second line of the cooling air outlet ports adjacent to the first line is larger than a second distance between the cooling air outlet ports adjacent to each other.

Transition piece of combustor, and gas turbine having the same

It is an object of the present invention to provide a sealing apparatus having high sealing performance, entailing a low cost, and satisfactory in assembly characteristics. The sealing apparatus is a differential pressure-responsive sealing apparatus which is inserted between seal grooves formed in the side surfaces of outlet flange portions of adjacent combustor transition pipes to seal clearance between the side surfaces, comprising: a minimum required number of seal pieces connected in the longitudinal direction for imparting flexibility, the seal piece comprising a heat resistant, wear resistant material, and having a pair of sealing ridges each having an arcuate surface contacting the wall surface of each seal groove.

Growing community of inventors

Tokyo, Japan

Hiroaki Kishida