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公开(公告)号：US09938851B2
公开(公告)日：2018-04-10
申请号：US14899945
申请日：2014-05-23
发明人： Tomoaki Okamura , Makoto Katagake
CPC分类号： F01D17/145 , F01D17/24 , F01K5/02 , F01K13/02 , F05D2220/31 , F05D2230/72 , F05D2260/57 , F05D2270/46 , F05D2270/62 , F16K31/047
摘要： This governing valve drive mechanism is a governing valve drive mechanism (15) that opens/closes a steam flow path (12) with a valve body (13) in order to regulate the flow rate of steam in a steam turbine (10), and is equipped with: a valve body advancing/retreating mechanism (14) for advancing and retreating the valve body (13) toward and from the steam flow path (12); multiple sets of electric actuators (23A, 23B) each having a rotational drive source (26) and a conversion section (30) for converting rotation of the rotational drive source (26) into a linear motion; connection switching sections (38) by which the electric actuators (23A, 23B) can be individually connected to the valve body advancing/retreating mechanism (14); and a control unit (17) for controlling operations of the rotational drive sources (26) and connection switching sections (38).
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公开(公告)号：US20180073562A1
公开(公告)日：2018-03-15
申请号：US15561629
申请日：2015-03-31
发明人： Yuichi SASAKI
CPC分类号： F16C33/08 , F16C17/03 , F16C17/243 , F16C33/108 , F16C33/26 , F16C41/00 , F16C43/02 , F16C2233/00
摘要： The present invention relates to a bearing device (61) provided with: a plurality of bearing pads (72) arranged between the outer peripheral surface of a turbine rotor (30) and the inner peripheral surface of a bearing housing (71) so as to be separated from each other in the circumferential direction of the rotor (30), the bearing housing (71) externally surrounding the rotor (30), the bearing pads (72) being supported on the inner peripheral surface of the bearing housing (71) and rotatably supporting the rotor (30); and a thermometer (75) provided to at least one of the plurality of bearing pads (72). The thermometer-equipped bearing pad (73) provided with the thermometer (75) has: a pad body (90) disposed facing the outer peripheral surface of the rotor (30); and a pair of pad shoulders (91) having different shapes and protruding from the pad body (90) to both sides of the bearing housing (71) in the direction of the center axis (O1) thereof. The bearing housing (71) has a pair of housing shoulders (78) having a shape corresponding to that of the pair of pad shoulders (91).
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公开(公告)号：US20180073513A1
公开(公告)日：2018-03-15
申请号：US15562076
申请日：2015-03-31
发明人： Yuji Masuda , Shinichiro Tokuyama
CPC分类号： F04D27/001 , F04B51/00 , F04D17/122 , F04D29/08 , F04D29/70 , F04D29/701 , F05D2260/607
摘要： A method for inspecting a rotary machine having a flow path through which a fluid flows includes a step of measuring a width of the flow path by a non-contact sensor in a stationary component of the rotary machine at a position facing the flow path; and a step of determining whether or not the measured width of the flow path is less than a predetermined lower limit threshold.
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84.发明申请公开(公告)号：US20180056366A1
公开(公告)日：2018-03-01
申请号：US15553496
申请日：2015-10-23
发明人： Yujiro WATANABE , Nobuyori YAGI , Atsushi KAWASAKI , Ken ISHII , Kazutoshi YOKOO
摘要： A forming method for a disk-shaped component includes: mounting a heated material on a table; applying a load to the material with a forming roll while rotating the table; forming the material into a disk shape using roll forging; and suppressing decrease in temperature of the material during forming using a heat retaining device.
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公开(公告)号：US20180038283A1
公开(公告)日：2018-02-08
申请号：US15551999
申请日：2015-02-23
发明人： Masahiro KOBAYASHI , Yasushi MORI
摘要： Provided is a gas turbine starting device which has a sun gear, a planetary carrier, an internal gear, and a planetary gear, the sun gear, the planetary carrier and the internal gear serving as rotating bodies rotating about an axis; and a variable speed power source which has a rotor connected to one of the rotating bodies in the planetary gear mechanism. A rotating shaft of the gas turbine is connected to one of the rotating bodies other than the rotating body to which the variable speed power source is connected, and the rotating shaft of the compressor is connected to the remaining one of the rotating bodies other than the rotating bodies to which the rotor of the variable speed power source and the rotating shaft of the gas turbine are connected.
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公开(公告)号：US20180030992A1
公开(公告)日：2018-02-01
申请号：US15549636
申请日：2015-08-10
发明人： Jo Masutani , Kazuki Chiba
CPC分类号： F04D29/162 , F04D17/125 , F04D25/163 , F04D29/284 , F04D29/4206
摘要： A centrifugal compressor includes a rotation shaft that extends along an axis; an impeller that includes a disk fixed to the rotation shaft and protruding outward in a radial direction, a plurality of blades provided in a surface facing one side in an axial direction of the disk to be separated from each other in a circumferential direction, and a cover covering the blades from the one side in the axial direction; and a casing that includes a facing inner peripheral surface facing an outer peripheral surface of the cover in the impeller and covers the impeller from an outside. The facing inner peripheral surface includes a cylindrical inner peripheral surface that extends along the axis and an enlarged inner peripheral surface that is connected to another side of the cylindrical inner peripheral surface in the axial direction and extends outward in the radial direction toward the other side.
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公开(公告)号：US20180023589A1
公开(公告)日：2018-01-25
申请号：US15547392
申请日：2015-09-16
发明人： Akihiro Nakaniwa , Satoru Yoshida
摘要： A centrifugal compressor includes an impeller that rotates about an axis; an inlet guide vane including a plurality of vanes disposed on an upstream side of the impeller and provided at intervals in a circumferential direction of the axis, the inlet guide vane being directed inward in the radial direction between adjacent vanes, and forming a guide flow path having an exit angle in the radial direction and guiding the fluid; and a suction flow path that introduces the fluid from a part in a circumferential direction into the inlet guide vane. The exit angle of the vane of the first region on the one side when viewed from the suction flow path in the inlet guide vane is displaced to the suction flow path side as compared to the exit angle of the vane of a second region on the opposite side of the one side.
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公开(公告)号：US20180017073A1
公开(公告)日：2018-01-18
申请号：US15546221
申请日：2015-01-27
发明人： Hideki Yamada
CPC分类号： F04D29/441 , F04D17/12 , F04D17/125 , F04D29/422 , F04D29/624
摘要： A centrifugal compressor casing, comprising a bundle which rotatably supports a rotating shaft, and an impeller fixed to the rotating shaft and that rotates with the rotating shaft about an axis of the rotating shaft, and in which an annular suction flow channel centered on the axis introduces fluid into the flow channel of the impeller, and an annular discharge flow channel centered on the axis that discharges the fluid from the flow channel of the impeller, are formed; a casing main body which covers the bundle from the outer circumferential side; and a volute piece which is provided on an inner surface of the casing main body in the discharge flow channel.
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公开(公告)号：US20170370372A1
公开(公告)日：2017-12-28
申请号：US15545242
申请日：2015-10-15
发明人： Ryo Egami , Takeshi Kaneko , Kazutoshi Yokoo , Masaki Shakuda , Masahiro Hayashi , Tomoaki Takeda
CPC分类号： F04D29/104 , F04D29/108 , F04D29/4206 , F05D2260/607 , F05D2270/3011 , F16J15/34 , F16J15/40
摘要： A rotary machine system includes: a rotary machine including a gas seal portion; a gas seal device connected to the rotary machine and that supplies a seal gas to the gas seal portion; and a connecting pipe that connects the gas seal portion and the gas seal device. The rotary machine includes a casing through which a working fluid flows; a rotatable rotary shaft; and the gas seal portion that seals the working fluid by the seal gas having a pressure higher than a pressure of the working fluid in the casing. The gas seal device includes: a seal gas supply pipe through which the seal gas delivered to the connecting pipe flows; a pressure regulating valve provided in the seal gas supply pipe and that adjusts the pressure of the seal gas supplied to the gas seal portion; and a control part.
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公开(公告)号：US20170356532A1
公开(公告)日：2017-12-14
申请号：US15544860
申请日：2015-10-09
CPC分类号： F16H25/2214 , F01D17/10 , F01D17/205 , F01D17/26 , F05D2220/31 , F05D2240/24 , F05D2260/98 , F16H57/0497 , F16K31/042 , F16K31/047 , F16K31/50 , F16K31/504 , F16K31/52
摘要： A linear motion mechanism, including a drive portion, a screw shaft which is rotationally driven about an axis by the drive portion and in which a first spiral screw groove is formed on an outer peripheral surface, a nut in which a second spiral screw groove facing the first screw groove is formed on an inner peripheral surface and which moves forward or backward relative to the screw shaft in an axial direction, in which an axis of the screw shaft extends, according to a rotation of the screw shaft, a plurality of load balls which are disposed in a transfer path formed by the first screw groove and the second screw groove and advance while rolling on the transfer path, a plurality of retainer frames which are disposed between the plurality of load balls and advances on the transfer path along with the load balls.
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