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公开(公告)号:US20190178166A1
公开(公告)日:2019-06-13
申请号:US15840458
申请日:2017-12-13
CPC分类号: F02C7/28 , F01D11/003 , F01D11/005 , F01D25/162 , F01D25/183 , F02C3/14 , F02C7/06 , F05D2220/32 , F05D2230/60 , F05D2240/55 , F05D2260/36 , F16J15/06
摘要: A face seal assembly includes a seal. The assembly also includes a seal carrier including a first seal wall, a second seal wall and a base seal wall, the first seal wall, the second seal wall and the base seal wall defining a groove for receiving the seal therein, the second seal wall extending radially outwardly to a non-uniform radial location.
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公开(公告)号:US20180306308A1
公开(公告)日:2018-10-25
申请号:US15946429
申请日:2018-04-05
IPC分类号: F16H57/04 , F16H57/021 , F16H57/029 , F16H57/08
CPC分类号: F16H57/0479 , F01D25/18 , F01D25/183 , F02C7/06 , F02C7/36 , F05D2260/40311 , F05D2260/98 , F16H57/021 , F16H57/029 , F16H57/043 , F16H57/046 , F16H57/0486 , F16H57/082
摘要: A gear device with a housing and a structural component rotatably mounted at the housing by a bearing that delimits a housing interior space. The gear device has a hydraulic fluid supply line for supplying hydraulic fluid into the interior space. A gap provides sealing between the housing and structural component. The gap is arranged radially between the housing and a further rotatable structural component or between a further housing and the structural component. A further bearing rotatably mounts the further structural component in the area of the housing or rotatably mounts the structural component at the further housing. An appliance couples the further structural component to the structural component or couples the housing to the further housing, and facilitates a relative movement between the further structural component and the structural component or between the housing and the further housing in the axial and/or radial directions.
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公开(公告)号:US20180291816A1
公开(公告)日:2018-10-11
申请号:US15484424
申请日:2017-04-11
发明人: Francis Parnin
CPC分类号: F02C7/28 , F01D9/06 , F01D11/00 , F01D11/02 , F01D11/04 , F01D11/06 , F01D25/18 , F01D25/183 , F05D2220/32 , F05D2240/50 , F05D2240/60 , F05D2260/601 , F16J15/44
摘要: Aspects of the disclosure are directed to a system associated with an engine having a central longitudinal axis, comprising: a first shaft axially extend along the central longitudinal axis, a second shaft coaxial with the first shaft, a first air seal that seals between the first shaft and the second shaft at a first axial location, a second air seal that seals between the first shaft and the second shaft at a second axial location, a high pressure compressor section that provides air to the first air seal and the second air seal, at least one buffer passage, and a meter connected to the buffer passage that exhausts a portion of the air.
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公开(公告)号:US10082037B2
公开(公告)日:2018-09-25
申请号:US14874831
申请日:2015-10-05
发明人: Gideon Venter
CPC分类号: F01D11/005 , F01D3/04 , F01D11/02 , F01D11/04 , F01D25/16 , F01D25/162 , F01D25/183 , F02C7/28 , F05D2220/32 , F05D2240/50 , F05D2240/52 , F05D2240/55 , F05D2240/56 , F05D2240/57 , F05D2240/61 , F05D2260/15 , F05D2270/3015
摘要: The present invention describes a gas turbine having two shafts, which are rotatably mounted using bearing devices in the area of a casing. An intermediate shaft sealing device is arranged between the bearing devices, which includes a sealing element connected to a first shaft, in which a further sealing element connected to the second shaft radially engages. An operating pressure is applied, in the area limited by the shafts in the axial direction of the shafts, to facing effective areas of the sealing elements, while the pressure prevailing in the area outside the shafts in the axial direction acts on effective areas of the sealing elements facing away from one another. A ratio between the outer diameters limiting the facing effective areas and the inner diameters likewise limiting these effective areas is in each case greater than or equal to 1.25.
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公开(公告)号:US10077830B2
公开(公告)日:2018-09-18
申请号:US15039896
申请日:2014-11-18
发明人: Michael E. McCune
CPC分类号: F16H57/0479 , F01D25/16 , F01D25/183 , F01D25/186 , F02C7/06 , F02C7/36 , F05D2260/40311 , F05D2260/98 , F16H57/043 , F16H57/0486
摘要: A gear reduction for a gas turbine engine comprises a carrier driven to rotate gears. The gears are supported by journal bearings. The carrier extends through a transfer bearing, which provides oil to passages within the carrier to supply oil to the gears and to the journal bearings. A device limits leakage oil from the transfer bearing to axial ends of the transfer bearing to a controlled amount. A gas turbine engine is also disclosed.
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公开(公告)号:US10018116B2
公开(公告)日:2018-07-10
申请号:US13366450
申请日:2012-02-06
CPC分类号: F02C6/08 , F01D5/082 , F01D5/085 , F01D25/16 , F01D25/183 , F02C7/185 , F05D2260/209 , F05D2260/213 , F05D2260/4031 , Y02T50/676
摘要: A gas turbine engine includes a first zone and a second zone downstream from the first zone. A buffer system can communicate a buffer cooling air to at least the first zone. A bleed source can communicate a bleed air to the second zone.
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公开(公告)号:US20180187566A1
公开(公告)日:2018-07-05
申请号:US15738304
申请日:2016-06-08
申请人: TURBODEN SPA
发明人: Mario GAIA , Roberto BINI
CPC分类号: F01D11/003 , F01D11/04 , F01D25/12 , F01D25/16 , F01D25/183 , F01D25/32 , F01K25/00 , F05D2220/30 , F05D2240/55 , F05D2240/60 , F05D2260/20
摘要: A turbine of an organic Ranking cycle ORC is described, the turbine comprising a shaft supported by bearings and a plurality of seals arranged round the shaft for confining the operating fluid expanding in the turbine. The seals define at least four axially consecutive chambers. The operating fluid, with function of barrier fluid, is fed into one of the chambers adjacent to turbine stages; a gas, preferably inert, is fed into one of the chambers adjacent to the bearings, and the corresponding seals are gas seals. This configuration prevents the operating fluid from any kind of contamination by the lubricant used for the bearings, and avoids polluting the environment.
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公开(公告)号:US20180171812A1
公开(公告)日:2018-06-21
申请号:US15845638
申请日:2017-12-18
申请人: MTU Aero Engines AG
发明人: Jan Haegert
CPC分类号: F01D11/003 , F01D9/065 , F01D25/183 , F05D2240/55 , F05D2240/58 , F05D2260/98 , F16J15/067
摘要: A sealing assembly for a turbomachine is provided, in particular for a gas turbine, having an annular groove G, in which at least one sealing ring (2) is located to seal a gap (S), at least one spiral ring (3) being located in the annular groove to axially support the sealing ring (2) against a first end face (11) of the annular groove.
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公开(公告)号:US09982604B2
公开(公告)日:2018-05-29
申请号:US14601057
申请日:2015-01-20
CPC分类号: F02C7/28 , F01D11/003 , F01D25/183 , F05D2250/182 , F05D2250/294 , F16J15/30 , F16J15/3268 , F16J15/441 , F16J15/442
摘要: Aspects of the disclosure are directed to a system comprising: a first seal that includes a notch configured to avoid an adjacent seal plate radius edge and a first protrusion, and a second seal that is notch-free with respect to an inner diameter sealing face and includes a second protrusion, wherein the first protrusion and the second protrusion are configured to at least partially overlap with one another in at least one of an axial direction or a radial direction with respect to an engine centerline.
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公开(公告)号:US20180128312A1
公开(公告)日:2018-05-10
申请号:US15439164
申请日:2017-02-22
发明人: Cheng-Hsien YEH , Chih-Wei CHAN
IPC分类号: F16C27/02 , F04D29/057 , F04D29/056 , F04D29/051 , F04D29/053 , F04D29/02 , F16C17/10 , H02K1/27 , H02K1/17
CPC分类号: F16C27/02 , F01D25/183 , F04D25/062 , F04D25/0626 , F04D29/023 , F04D29/0513 , F04D29/053 , F04D29/0566 , F04D29/057 , F16C17/105 , F16C17/107 , F16C32/0651 , F16C2360/46 , F16C2380/26 , H02K1/17 , H02K1/27 , H02K5/1675
摘要: A motor includes a shaft, a shell, a sleeve, an abrasion-resistance piece, a bearing, an oil seal, and several compressed springs. The shaft has an axial line. The shell is connected to the shaft. The sleeve has an accommodating space, and the wall of the accommodating space forms a first inclined surface which is inclined at an angle with respect to the axial line. The abrasion-resistance piece is disposed at the bottom of the accommodating space. The bearing is disposed in the accommodating space, and the outer wall of the bearing forms a second inclined surface corresponding to the first inclined surface. The shaft passes through the bearing and abuts the abrasion-resistance piece. The oil seal is affixed to the wall of the accommodating space and covers the bearing. The compressed springs are connected between the oil seal and the bearing.
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