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31. 发明申请

US20200063561A1 STEAM TURBINE 审中-公开
公开(公告)号：US20200063561A1
公开(公告)日：2020-02-27
申请号：US16462651
申请日：2017-12-19
申请人： Mitsubishi Hitachi Power Systems, Ltd.
发明人： Ryo Takata , Soichiro Tabata
IPC分类号： F01D1/10 , F01D1/04
摘要： A steam turbine according to an embodiment of the present invention includes: a rotor configured to rotate about an axis; a casing which houses the rotor rotatable; and a first stage including a first-stage stationary vane fixed to an inner wall portion of the casing and a first-stage rotor blade fixed to the rotor at downstream of the first-stage stationary vane. The rotor includes a first cavity having a concave shape and being formed on a portion facing the first-stage stationary vane, the first cavity being in communication with an inner space defined between the inner wall portion and the rotor at upstream of the first-stage stationary vane. The first-stage stationary vane includes a first-stage through hole which is in communication with the first cavity and which is formed through the first-stage stationary vane in a radial direction.

32. 发明申请

US20170342839A1 SYSTEM FOR A LOW SWIRL LOW PRESSURE TURBINE 审中-公开
公开(公告)号：US20170342839A1
公开(公告)日：2017-11-30
申请号：US15164648
申请日：2016-05-25
申请人： General Electric Company
发明人： Brandon Wayne Miller , Thomas Ory Moniz , Jeffrey Donald Clements , Joseph George Rose
IPC分类号： F01D1/10 , F02C3/107 , F01D25/24 , F01D5/06 , F02K3/06 , F01D9/04
CPC分类号： F01D1/10 , F01D5/06 , F01D5/141 , F01D9/041 , F01D25/24 , F02C3/107 , F02K3/06 , F05D2220/3215 , F05D2220/323 , F05D2240/35 , F05D2240/60 , Y02T50/671 , Y02T50/673
摘要： The low pressure turbine includes a rotor, an outer casing, a plurality of stages of rotor blades, and a plurality of stages of stator vanes. The rotor includes a longitudinal centerline. The outer casing circumscribes the rotor. The plurality of stages of rotor blades is disposed on a radially outer surface of the rotor in a serial flow arrangement. The plurality of stages of stator vanes is disposed on a radially inner surface of the outer casing in a serial flow arrangement. Each stage of the plurality of stages of stator vanes precedes a stage of rotor blades. The last stage of rotor blades of the plurality of stages of rotor blades includes a low swirl outlet rotor blade stage.

33. 发明申请

US20130011247A1 CENTRIFUGAL FAN WITH A MULTISTAGE IMPELLER 审中-公开
标题翻译：离心风扇与多级叶轮
公开(公告)号：US20130011247A1
公开(公告)日：2013-01-10
申请号：US13177889
申请日：2011-07-07
申请人： Jin-Hsun Liu
发明人： Jin-Hsun Liu
IPC分类号： F01D1/10 , F01D5/00
CPC分类号： F04D29/281 , F04D25/166 , F04D29/286 , F04D29/4246
摘要： A centrifugal fan with a multistage impeller includes a hub and a multistage impeller having at least two stages of blade assemblies. The hub has a top section and a circumferential section extending from the top section. At least one extension section outward extends from the circumferential section. The multistage impeller is connected with one end of the extension section. The multistage impeller includes a first-stage blade assembly and a second-stage blade assembly. The second-stage blade assembly has a diameter larger than that of the first-stage blade assembly. The centrifugal fan can be installed in an application environment with limited space without being interfered with by peripheral parts. Also, the centrifugal fan is able to provide an optimal flow and wind pressure at the same rotational speed to lower the load on the motor and reduce the noise.
摘要翻译：具有多级叶轮的离心式风扇包括轮毂和具有至少两级叶片组件的多级叶轮。轮毂具有顶部和从顶部延伸的圆周部分。至少一个延伸部分从周向部分向外延伸。多级叶轮与延伸部分的一端连接。多级叶轮包括第一级叶片组件和第二级叶片组件。第二级叶片组件的直径大于第一级叶片组件的直径。离心风机可以安装在有限空间的应用环境中，不会受到周边部件的干扰。此外，离心式风扇能够以相同的转速提供最佳的流量和风压，以降低电机上的负载并降低噪音。

34. 发明申请

US20110033281A1 STEAM TURBINE, METHOD OF COOLING STEAM TURBINE, AND HEAT INSULATING METHOD FOR STEAM TURBINE 有权
标题翻译：蒸汽涡轮机，蒸汽涡轮机冷却方法和蒸汽涡轮机热绝缘方法
公开(公告)号：US20110033281A1
公开(公告)日：2011-02-10
申请号：US12839826
申请日：2010-07-20
申请人： Asako INOMATA , Katsuya YAMASHITA , Kazuhiro SAITO , Takao INUKAI , Kunihiko WADA , Kazutaka IKEDA , Takeo SUGA
发明人： Asako INOMATA , Katsuya YAMASHITA , Kazuhiro SAITO , Takao INUKAI , Kunihiko WADA , Kazutaka IKEDA , Takeo SUGA
IPC分类号： F01D25/14 , F01D1/04 , F01D1/10 , F01D25/26
CPC分类号： F01D25/12 , F01D25/26 , F05D2220/31 , F05D2260/205 , F05D2260/2322
摘要： A steam turbine 10 is provided with a double-structure comprising an inner casing 20 and an outer casing 21. A turbine rotor 22, in which plural stages of moving blades 24 are circumferentially implanted, is operatively disposed in inner casing 20. A diaphragm outer ring 25 and a diaphragm inner ring are disposed along the circumferential direction in inner casing 20. Stationary blades 27 are circumferentially provided between diaphragm outer ring 25 and the diaphragm inner ring, so that diaphragm outer ring 25, the diaphragm inner ring and stationary blades 27 form a stage of stationary blades. The stages of the stationary blades are arranged alternately with the stages of moving blades 24 in the axial direction of turbine rotor 22. A cooling medium passage 40 for passing a cooling medium CM which is supplied through a supply pipe 45 is formed between inner casing 20 and diaphragm outer ring 25.
摘要翻译：蒸汽轮机10设置有包括内壳20和外壳21的双重结构。涡轮机转子22可操作地设置在内壳20中，其中多个动叶片24周向地植入其中。环25和隔膜内圈沿圆周方向设置在内壳体20中。固定叶片27周向地设置在隔膜外圈25和隔膜内圈之间，使得隔膜外圈25，隔膜内圈和固定叶片27 形成固定叶片的阶段。固定叶片的阶段与动叶片24的阶段沿涡轮转子22的轴向交替布置。用于使通过供给管45供给的冷却介质CM通过的冷却介质通道40形成在内壳20 和隔膜外圈25。

35. 发明授权

US07645116B2 Turbo vacuum pump 有权
标题翻译：涡轮真空泵
公开(公告)号：US07645116B2
公开(公告)日：2010-01-12
申请号：US11411896
申请日：2006-04-27
申请人： Hiroyuki Kawasaki , Shinichi Sekiguchi
发明人： Hiroyuki Kawasaki , Shinichi Sekiguchi
IPC分类号： F01D1/10
CPC分类号： F04D19/046 , F04D17/168 , F04D23/008
摘要： A turbo vacuum pump of the present invention includes a suction part for sucking gas in an axial direction; a discharge section in which rotating impellers and stationary impellers are alternately arranged; a rotating shaft for rotating the rotating impellers; and a turbine impeller part fixed to the suction side end face of the rotating shaft. The rotating impellers include one or more turbine impellers for discharging the sucked gas in the axial direction, and one or more centrifugal impellers, located downstream of the one or more turbine impellers, for further discharging the discharged gas by a centrifugal drag effect. The one or more centrifugal impellers are fixed to the rotating shaft passing therethrough. The one or more turbine impellers are included in the turbine impeller part.
摘要翻译：本发明的涡轮式真空泵包括：用于沿轴向抽吸气体的吸入部; 排出部，其中旋转叶轮和固定叶轮交替布置; 用于旋转旋转叶轮的旋转轴; 以及固定在旋转轴的吸入侧端面的涡轮叶轮部。旋转的叶轮包括用于沿轴向排出吸入气体的一个或多个涡轮叶轮，以及位于一个或多个涡轮叶轮下游的一个或多个离心式叶轮，用于通过离心牵引效应进一步排出排出的气体。一个或多个离心式叶轮固定在通过其的旋转轴上。一个或多个涡轮叶轮包括在涡轮叶轮部分中。

36. 发明申请

US20080260517A1 FAN APPARATUS 有权
标题翻译：风扇装置
公开(公告)号：US20080260517A1
公开(公告)日：2008-10-23
申请号：US12103918
申请日：2008-04-16
申请人： Tomo HAYASHIGAITO , Kenji IWAMOTO , Yoshihisa KATO , Hironobu NISHIDA , Suguru YAMADA , Manabu MIYAKODA
发明人： Tomo HAYASHIGAITO , Kenji IWAMOTO , Yoshihisa KATO , Hironobu NISHIDA , Suguru YAMADA , Manabu MIYAKODA
IPC分类号： F01D1/10 , F04D29/52 , F04D13/06
CPC分类号： F04D19/007 , F04D25/0613 , F04D29/526
摘要： A fan apparatus includes a casing and a fan unit. The casing is a hollow member having an inlet and an outlet. The fan unit has an inlet and an outlet, and includes a plurality of axial fans. The fan unit is disposed on the inside of the casing, and the inlet of the fan unit is disposed in the vicinity of the inlet of the casing. The position of the fan unit within the casing can be varied in order to alter the air flow and static pressure of the air discharged by the fan apparatus.
摘要翻译：风扇装置包括壳体和风扇单元。壳体是具有入口和出口的中空构件。风扇单元具有入口和出口，并且包括多个轴流风扇。风扇单元设置在壳体的内部，风扇单元的入口设置在壳体的入口附近。风扇单元在壳体内的位置可以变化，以便改变由风扇装置排放的空气的空气流量和静压力。

37. 发明授权

US5545005A Centrifugal pump 失效
标题翻译：离心泵
公开(公告)号：US5545005A
公开(公告)日：1996-08-13
申请号：US392774
申请日：1995-02-24
申请人： Martin Stahle
发明人： Martin Stahle
IPC分类号： F04D7/04 , F04D9/00 , F04D9/04 , F04D9/06 , F01D1/10
CPC分类号： F04D7/045 , F04D9/003 , F04D9/06
摘要： The impeller (1) is seated with its impeller hub (3) fixed for rotation on a shaft (4). The drive-side edges of the impeller (1), turn with slight clearance (a), over a pump-housing rear wall (5). The latter forms a labyrinth slot 6) with the impeller (1). The labyrinth slot (6) connects the pump chamber (2') with a hub chamber (7). Within the hub chamber (7), a coaxial vane wheel is connected, fixed for rotation, with the impeller (1) in order to impart a stronger rotary movement to the liquid in the hub chamber (7) and centrifuge it. The hub chamber (7) is provided with a peripheral opening (12) for the emergence of the liquid. The air collecting in the region of the shaft (4) escapes through a slot (10) which is formed by the hub housing wall (20) and the shaft (4). The peripheral opening (12) is arranged in the hub-housing wall (20) and developed as a drive nozzle; it debouches into a space (11) adjoining the hub chamber (7) and connected with it by the slot (10) and is directed against the diffuser pipe (13) and forms a liquid jet pump (12, 13) through which the liquid coming from the hub chamber (7) flows.
摘要翻译： PCT No.PCT / CH94 / 00129 Sec。 371日期：1995年2月24日 102（e）1995年2月24日PCT 1994年6月24日PCT公布。公开号WO95 / 02768 日期1995年1月26日叶轮（1）安装在其叶轮毂（3）上，固定在轴（4）上。叶轮（1）的驱动侧边缘稍微间隙（a）转过泵壳后壁（5）。后者与叶轮（1）形成迷宫槽6）。迷宫槽（6）将泵室（2'）与轮毂室（7）连接。在轮毂室（7）内，同轴叶轮与叶轮（1）连接固定以旋转，以便对轮毂室（7）中的液体赋予更强的旋转运动并将其离心。毂室（7）设置有用于液体出现的周边开口（12）。在轴（4）的区域中收集的空气通过由毂壳体壁（20）和轴（4）形成的槽（10）而逸出。周边开口（12）布置在轮毂壳体壁（20）中并显影为驱动喷嘴; 它连接到与轮毂室（7）相邻的空间（11）中，并通过槽（10）与其相连，并且被引导到扩散管（13）并形成液体喷射泵（12,13），液体从轮毂室（7）流出。

38. 发明授权

US4408953A High efficiency centrifugal pump 失效
标题翻译：高效离心泵
公开(公告)号：US4408953A
公开(公告)日：1983-10-11
申请号：US337473
申请日：1982-01-06
申请人： Pius J. Nasvytis , George W. Jahrstorfer
发明人： Pius J. Nasvytis , George W. Jahrstorfer
IPC分类号： F02C7/22 , F04D9/04 , F04D13/02 , F04D29/22 , F04D29/44 , F01D1/10 , F04D13/14
CPC分类号： F04D13/021 , F02C7/22 , F04D1/06 , F04D29/2277 , F04D29/447 , F04D9/04
摘要： A high speed fuel pump for a gas turnbine engine has a positively-driven shroud (28) positioned between a main impeller (14) and the wall of a pumping cavity (12) to reduce impeller drag. The shroud is formed by a first disc (30) having a boost impeller (36) connected to its central hub portion 30a and a second disc (32) having a gear (32b) carried by its central hub portion (32a). The main drive shaft assembly (24), to which the main impeller is connected, carries a gear (64) which meshes with gear (62) mounted upon a shaft (58). The shaft (58) also carries a gear (56) which meshes with the gear 32b. The gears are sized so that the shroud is driven at one-half the speed of the main impeller in order to maximize impeller drag reduction and enhance pumping capability when severe inlet conditions are present at the pump inlet (10).
摘要翻译：一种用于气体旋转阀发动机的高速燃料泵具有位于主叶轮（14）和泵送腔（12）的壁之间的主动驱动罩（28），以减少叶轮的阻力。护罩由具有连接到其中心毂部分30a的增压叶轮（36）的第一盘（30）和具有由其中心毂部（32a）承载的齿轮（32b）的第二盘（32）形成。与主叶轮连接的主驱动轴组件（24）承载与安装在轴（58）上的齿轮（62）啮合的齿轮（64）。轴（58）还承载与齿轮32b啮合的齿轮（56）。齿轮的尺寸使得护罩以主叶轮的一半速度被驱动，以便在泵入口（10）处存在严重的入口条件时，最大化叶轮阻力减小和增强泵送能力。

39. 发明授权

US1710561A Turbine engine, particularly steam or gas turbine 失效
标题翻译：涡轮发动机，特别是蒸汽或燃气轮机
公开(公告)号：US1710561A
公开(公告)日：1929-04-23
申请号：US15755726
申请日：1926-12-28
申请人： JOHANN ZAGORSKI
发明人： JOHANN ZAGORSKI
IPC分类号： F01D1/10
CPC分类号： F01D1/10

40. 发明授权

US11702962B2 Steam turbine configured to recover static pressure of steam in diffuser 有权
公开(公告)号：US11702962B2
公开(公告)日：2023-07-18
申请号：US17381680
申请日：2021-07-21
申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION
发明人： Masatomo Todo , Akito Kunimoto
IPC分类号： F01D25/30 , F01D1/10 , F01D9/04 , F01D11/02
CPC分类号： F01D25/30 , F01D1/10 , F01D9/041 , F01D11/02 , F05D2220/31
摘要： A steam turbine has a diffuser that is configured to guide steam to an outside of a casing. The diffuser has an outer guide that gradually expands to an outer side in a radial direction and an inner guide that is disposed at intervals to an inner side in the radial direction with respect to the outer guide. The inner guide has an inner curved diameter-expanded portion that gradually expands to the outer side in the radial direction while being curved from the first side to the second side in the axial direction. The outer guide has a first diameter-expanded portion that gradually expands to the outer side in the radial direction with a first radius of curvature, and a second diameter-expanded portion that gradually expands to the outer side in the radial direction with a second radius of curvature larger than the first radius of curvature.

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