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公开(公告)号：US20200240271A1
公开(公告)日：2020-07-30
申请号：US16773316
申请日：2020-01-27
发明人： Takuro Koda , Kazuaki Sugimoto , Akito Kunimoto , Tomoaki Nogami
摘要： A steam turbine system 1 includes a steam turbine 10including a plurality of rotor blades 16; a first mixed steam supply pipe 21 that supplies the steam, which is supplied from a steam supply source 40 capable of supplying the steam with fluctuating pressure, to an upstream stage Sa within the casing 11; a second mixed steam supply pipe 22 that supplies the steam to the second stepped part Sb; an adjusting unit 25 that adjusts a flow rate of the steam supplied to the first stepped part Sa and the second stepped part Sb; and a control unit 30 that controls the adjusting unit 25 on the basis of a differential pressure between a pressure P0 of the steam supplied from the steam supply source 40 and a pressure in the first stepped part Sa.
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公开(公告)号：US20200232417A1
公开(公告)日：2020-07-23
申请号：US16743537
申请日：2020-01-15
发明人： Akito Kunimoto , Keita Mori
IPC分类号： F02K1/82 , F01K13/00 , F01D25/24 , F01K3/00 , G10K11/175
摘要： A steam turbine 1 includes a turbine body 11 which includes a rotor 5 which is configured to rotate around an axis Ac, and a casing 6 which covers the rotor 5 to form a flow path through which steam flows in an axis Ac direction, together with the rotor 5, a thermal insulation member 12 which is provided to be in contact with an outer surface of the casing 6 in a high-pressure side region 61 out of the high-pressure side region 61 and a low-pressure side region 62 of the steam in the axis Ac direction of the casing 6, and a soundproof cover 13 which covers the low-pressure side region 62 out of the high-pressure side region 61 and the low-pressure side region 62 via a space between the outer surface of the casing 6 and the soundproof cover 13.
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公开(公告)号：US10697472B2
公开(公告)日：2020-06-30
申请号：US15780022
申请日：2015-12-22
发明人： Kazuhiko Hamamoto
摘要： A centrifugal compressor includes: a casing; a compression mechanism disposed inside the casing; a flow rate regulation valve disposed inside the casing and that regulates a flow rate of air sucked into the casing; a conversion mechanism disposed outside the casing and that changes a direction of the flow rate regulation valve based on an output of an actuator; and a cover that surrounds and houses the conversion mechanism, wherein dry air is supplied to an inside of the cover, and the cover forms an air reservoir that prevents dew condensation on the conversion mechanism.
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公开(公告)号：US10697459B2
公开(公告)日：2020-06-30
申请号：US15936935
申请日：2018-03-27
发明人： Toshio Mizunoue , Kazutoshi Yokoo , Daisuke Hirata
摘要： A method of manufacturing a fluid apparatus with flanges that are fastened together may include the following steps: fastening the flanges with a fastening member; introducing a fluid into an internal space of the fluid apparatus, and plastically deforming portions of the flanges that form seats for receiving the fastening member and portions of the flanges that form mating surfaces with pressure of the fluid being applied; releasing the fastening member and correcting at least the mating surfaces out of the seats and the mating surfaces; and refastening the flanges.
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公开(公告)号：US10689187B2
公开(公告)日：2020-06-23
申请号：US16328862
申请日：2016-11-28
发明人： Hiroki Urushidani
摘要： A rotor securing jig secures a rotor extending along an axis inside a container. The rotor securing jig includes a first member that is able to be secured to a first end portion of the rotor, which is an end portion of the rotor on a first side in an axial direction, a second member that is provided relatively movable in the axial direction with respect to the first member, and a third member that is secured to the container, has a first abutting surface facing a second side in the axial direction, which is an opposite side to the first side, and abutting the first member, and has a second abutting surface facing the first side and abutting the second member.
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公开(公告)号：US20200157958A1
公开(公告)日：2020-05-21
申请号：US16680577
申请日：2019-11-12
IPC分类号： F01D9/04
摘要： There is provided a method for manufacturing a nozzle diaphragm which can be assembled with high accuracy. The method for manufacturing a nozzle diaphragm includes a preparation step S1 of preparing an inner ring, a plurality of nozzles, an outer shroud ring, and an outer ring, a ring installation step S2 of installing the outer shroud ring, a nozzle installation step S3 of installing the nozzles while an outer peripheral end portion of a nozzle main body is inserted into a through-hole formed in the outer shroud ring, an inner ring installation step S4 of installing the inner ring, an outer ring installation step S5 of installing the outer ring outside the outer shroud ring, and a welding step S6 of welding the outer ring and the outer shroud ring to each other, and welding the inner ring and the inner shroud to each other in a circumferential direction.
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公开(公告)号：US10605302B2
公开(公告)日：2020-03-31
申请号：US16066596
申请日：2016-12-26
摘要： A tilting pad gas bearing includes: a plurality of bearing pads disposed in a circumferential direction of a rotor; and a pivot member that swingably supports the bearing pads. Each of the bearing pads has a curved shape and includes: a pad main body supported by the pivot member; a heat insulating material layer disposed on a side of the pad main body that faces the outer circumferential surface of the rotor, and formed of a material having a thermal conductivity lower than a thermal conductivity of the pad main body; and a concave portion disposed in an outer circumferential surface on an outer circumferential side of the bearing pad in a curving direction. A base end of the pivot member is fixed to a housing, and the pivot member has a protruding portion that passes through the housing.
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公开(公告)号：US10557370B2
公开(公告)日：2020-02-11
申请号：US16065650
申请日：2016-02-26
发明人： Hiroaki Oka
IPC分类号： F01D17/14 , F16K31/122
摘要： A valve system includes: a valve device with a flow path and a valve body that opens and closes the flow path; and a drive mechanism that drives the valve body. The drive mechanism includes: a cylinder case; a cylinder chamber that extends in an axis direction and is formed inside the cylinder case; a piston that divides the cylinder chamber into a first chamber on a first side in the axis direction and a second chamber on a second side in the axis direction; an inflow port through which working fluid flows to the inside of the first chamber; an elastic member disposed inside the second chamber and that pushes the piston to the first side; a bypass passage that connects the first chamber and the second chamber; and an on-off valve that opens and closes the bypass passage.
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公开(公告)号：US20200032810A1
公开(公告)日：2020-01-30
申请号：US16491325
申请日：2018-03-26
发明人： Yuya Konno
IPC分类号： F04D29/28
摘要： An impeller includes: a disc portion fixed to a rotary shaft that rotates around an axis line; a cover portion disposed to face the disc portion; and a plurality of blade portions provided between the disc portion and the cover portion. The impeller includes a first segment configured of a first disc portion that is a portion of the disc portion on one side of the axis line, a second segment in which a second disc portion that is a portion of the disc portion on another side of the axis line, the cover portion, and the blade portions are integrally configured, and a bonding layer configured to bond the first disc portion of the first segment and the second disc portion of the second segment with a bonding agent.
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公开(公告)号：US20200011205A1
公开(公告)日：2020-01-09
申请号：US16502818
申请日：2019-07-03
发明人： Yuichi Sasaki , Kyoichi Ikeno
摘要： 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.
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