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公开(公告)号：US20230101143A1
公开(公告)日：2023-03-30
申请号：US17795072
申请日：2021-01-18
发明人： David WILLIAMS , Stefan MENCZYKALSKI , Stephan UHKÖTTER , Uwe KRACHT , Wolfram KURZ-HARDJOSOEKATMO
摘要： An oil system of a gas turbine engine, includes a first oil circuit and a second oil circuit. Via of the oil circuits, oil is supplied to a hydraulic load of a transmission of the engine. Downstream of the load, in the region of a return of the transmission, oil is introduced into the oil circuits from the transmission. Upstream of the load, in the region of inlets, oil can be introduced into the transmission from the oil circuits. The second oil circuit includes an oil accumulator between the return and the inlet of the second oil circuit. The oil accumulator is configured such that, according to a feed pressure of the oil upstream of the inlet oil is stored in the oil accumulator or oil stored in the oil accumulator is fed toward the inlet.
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公开(公告)号：US20160319926A1
公开(公告)日：2016-11-03
申请号：US15091053
申请日：2016-04-05
CPC分类号： F01D25/18 , F02C7/06 , F02C7/36 , F05D2260/40 , F05D2260/40311 , F05D2260/406 , F05D2260/98 , F16H1/28 , F16H57/04 , F16H57/0427 , F16H57/043 , F16H57/0486 , F16L25/10 , F16L37/50
摘要： A transfer coupling includes a static component and a rotatable component arranged concentrically, the static component including a first number of radially extending ports and the rotatable component having a second number of radially extending ports the radially extending ports arranged in a common circumferential plane wherein the ports are configured and arranged, in use, to homogenise a flow area for a fluid being transferred through the ports and thereby create a homogenous volume flow.
摘要翻译： 传输联接器包括静止部件和同心布置的可旋转部件，静电部件包括第一数量的径向延伸的端口，并且可旋转部件具有第二数量的径向延伸的端口，径向延伸的端口布置在共同的圆周平面中，其中端口 在使用中被配置和布置以使通过端口传送的流体的流动区域均匀化，从而产生均匀的体积流量。
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公开(公告)号：US20190003336A1
公开(公告)日：2019-01-03
申请号：US16113325
申请日：2018-08-27
摘要： A transfer coupling includes a static component and a rotatable component arranged concentrically, the static component including a first number of radially extending ports and the rotatable component having a second number of radially extending ports the radially extending ports arranged in a common circumferential plane wherein the ports are configured and arranged, in use, to homogenise a flow area for a fluid being transferred through the ports and thereby create a homogenous volume flow.
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公开(公告)号：US20220065173A1
公开(公告)日：2022-03-03
申请号：US17412638
申请日：2021-08-26
发明人： Stephan UHKÖTTER , Rens DOUMA , Uwe KRACHT , Mark BINNINGTON
摘要： A planetary gear box for a gas turbine engine, has a planet carrier with a carrier element and a planet gear. The planet gear is mounted rotatably via a plain bearing on the carrier element. An oil feed pocket is provided in the region of an outer side of the carrier element, via which feed pocket oil can be passed into a bearing gap between the outer side of the carrier element and an inner side of the planet gear. In the circumferential region of a main load direction of the plain bearing, the carrier element is formed with at least one channel carrying transmission oil. The channel extends in the carrier element radially inside the outer side of the carrier element, extending in the axial direction of the carrier element, and includes a cross section closed with respect to the bearing gap.
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公开(公告)号：US20180231115A1
公开(公告)日：2018-08-16
申请号：US15897499
申请日：2018-02-15
IPC分类号： F16H57/04 , F04D1/00 , F16J15/00 , F16J15/3204
CPC分类号： F16H57/043 , F04D1/003 , F16D33/02 , F16H57/0427 , F16H57/0471 , F16H57/0482 , F16J15/002 , F16J15/3204
摘要： A fluid transfer coupling comprises a first shaft assembly a second shaft assembly, and a seal assembly. The first shaft assembly comprises a first shaft and an annular fin attached to the first shaft, the annular fin having one or more internal passages extending therethrough. Each internal passage connects a centre portion of the first shaft to a radially outwardly facing side of the annular fin. The second shaft assembly comprises a second shaft and an annular trough extending radially outwardly of the second shaft.
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公开(公告)号：US20230061493A1
公开(公告)日：2023-03-02
申请号：US17896202
申请日：2022-08-26
IPC分类号： F16C33/10
摘要： A friction of a planetary gearbox, having first and second rotatably connected components. Oil adjacent an oil feed pocket of the first component is directed into a bearing clearance. The oil is directed into the pocket by a line that opens into the pocket. An oil supply unit supplies oil to the bearing clearance at a defined pressure. A ratio between the pulse, via which the oil is directed into the bearing clearance and which corresponds to the product of the square of the inflow rate of the oil into the clearance and the oil density, and the pulse of the oil which adheres to the internal side of the second component 5*10−3. The pulse of the oil adhering to the second component is equal to the product of the square of the velocity of the oil adhering to the second component and the oil density.
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公开(公告)号：US20230069754A1
公开(公告)日：2023-03-02
申请号：US17897619
申请日：2022-08-29
发明人： Stephan UHKÖTTER , Uwe KRACHT , Jakob VIOLET
摘要： A planetary gearbox of a gas turbine engine has a planet gear which, via a bearing, is arranged rotatably on a planet pin of a rotatable planet carrier. Oil is introduced through an opening, arranged radially within the bearing, into an oil feed which is open at a feed side and which is connected to the bearing and rotationally joined to the carrier. As the carrier rotates, the oil downstream of the opening is conducted toward the bearing unit by centrifugal force. The open oil feed is, between the opening and the bearing, configured an oil filter through which the oil is conducted. The filter extends counter to the flow direction of the oil from the opening in the direction of the bearing unit, in a flow direction of the oil in the open oil feed.
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公开(公告)号：US20230193991A1
公开(公告)日：2023-06-22
申请号：US18068332
申请日：2022-12-19
发明人： Stephan UHKÖTTER , Rens DOUMA
CPC分类号： F16H57/0479 , F16H57/043 , F02C7/36 , F02C7/06 , F05D2260/40311 , F16H2057/085
摘要： A planetary gearbox for a gas turbine engine has a planet gear rotatably mounted on a carrier element, which is connected in a rotationally fixed manner to a planet carrier. An oil feed pocket is in a region of an external side of the carrier element, via which oil is passed into a bearing gap between the carrier element and the planet gear. The carrier element has a duct carrying oil. The duct in is provided radially within an external side of the carrier element, having a cross section which is closed in relation to the bearing gap. The duct in the flow direction of the oil has at least two sequential duct portions. The flow cross section of the duct in a transition region between an upstream duct portion and a next downstream duct portion decreases in an at least approximately step-shaped manner.
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公开(公告)号：US20230068219A1
公开(公告)日：2023-03-02
申请号：US17882170
申请日：2022-08-05
发明人： Alexander SCHÜTT , Tobias EBERHARDT , Rens DOUMA , Uwe KRACHT , Maximilian PRÖLSS , Wolfram KURZ-HARDJOSOEKATMO , Stephan UHKÖTTER
IPC分类号： F16H57/04
摘要： A friction bearing of a planetary gearbox has a first rotationally fixed component and a second component rotatably connected thereto. Oil in the region of an oil feed pocket of the first component is directed into the bearing clearance between the components. The oil is directed into the oil feed pocket via at least one first line that opens into the oil feed pocket. Oil is also directed via at least one second line into the oil feed pocket, the port region of said second line into the oil feed pocket in the circumferential direction of the bearing clearance and in the main rotation direction of the second component in relation to the first component and/or in the axial direction of the friction bearing being spaced apart from the port region of the first line into the oil feed pocket.
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公开(公告)号：US20230065946A1
公开(公告)日：2023-03-02
申请号：US17896245
申请日：2022-08-26
摘要： A plain bearing of a planetary gearbox has first and second rotationally connected components. Oil adjacent an oil feed pocket of the first component is directed into the bearing clearance between the components by a first line that opens into the pocket. The line includes a first portion and a downstream second portion. The flow cross section of the first portion is smaller than the flow cross section of the second portion. The flow cross section for the oil, in the feed direction, in the circumferential direction of the clearance and in the main rotation direction of the second component relative to the first component increases more than counter to the main rotation direction of the second component, or in the circumferential direction of the clearance and counter to the main rotation direction of the second component increases more than in the main rotation direction of the second component.
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