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公开(公告)号：US12049828B2
公开(公告)日：2024-07-30
申请号：US17900513
申请日：2022-08-31
发明人： Anusrita Raychaudhuri , Ravindra Shankar Ganiger , Bhanu Battu , Richa Awasthi , Nilesh Varote , Vidyashankar Buravalla
IPC分类号： F01D11/20 , F01D11/02 , F01D11/08 , F01D11/14 , F01D11/22 , F01D11/24 , F02C7/042 , F02C7/057 , F04D29/52
CPC分类号： F01D11/20 , F01D11/025 , F01D11/22 , F01D11/24 , F02C7/042 , F04D29/526 , F01D11/08 , F01D11/14 , F02C7/057 , F05D2220/32 , F05D2240/11 , F05D2300/505
摘要： Variable sleeve clearance control systems for gas turbine engines are disclosed. An example variable sleeve clearance control system for a gas turbine engine includes a sleeve comprising a first end and a second end, the first end of the sleeve coupled to a first spring that biases the sleeve inward, and the second end of the sleeve coupled to a second spring that biases the sleeve outward, a proximity sensor to measure a clearance width, and a controller for each of the first and second springs, the controller to obtain the measured clearance width from the proximity sensor and determine a response of the first and second springs.
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公开(公告)号：US11932410B2
公开(公告)日：2024-03-19
申请号：US17767576
申请日：2020-10-12
申请人： SAFRAN , SAFRAN HELICOPTER ENGINES
CPC分类号： B64D29/00 , F01D5/02 , F01D25/005 , F02K1/002 , F05D2220/90 , F05D2240/20 , F05D2300/505
摘要： A propulsion system for an aircraft includes a rotor and a nacelle fairing that extends around the rotor in relation to an axis. The nacelle fairing includes an upstream portion forming an inlet section of the nacelle fairing as well as a downstream portion, a downstream end of which forms an outlet section of the nacelle fairing. The downstream portion includes radially inner and outer walls, both of which are made of a deformable shape memory material. The wall has independently actuatable piston actuator mechanisms, each actuator mechanism being actuatable independently of the others and being designed to cooperate with means built into an inner surface of the wall to deform the wall in a radial direction in relation to the axis under the effect of a predetermined displacement command.
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公开(公告)号：US11852155B2
公开(公告)日：2023-12-26
申请号：US16868907
申请日：2020-05-07
发明人： Mario Scheckel
IPC分类号： F04D29/18 , F04D29/02 , F04D29/24 , A61M60/422 , A61M60/414 , A61M60/808 , A61M60/13 , A61M60/216 , A61M60/237 , F04D29/60 , B63H1/14 , A61M60/135 , A61M60/148 , B63H1/12
CPC分类号： F04D29/18 , A61M60/13 , A61M60/216 , A61M60/237 , A61M60/414 , A61M60/422 , A61M60/808 , B63H1/14 , F04D29/026 , F04D29/247 , F04D29/605 , A61M60/135 , A61M60/148 , B63H2001/122 , F05D2230/50 , F05D2300/501 , F05D2300/505 , F05D2300/518 , Y10T29/49229 , Y10T29/49245
摘要： The invention relates to a fluid pump, in particular to a liquid pump having a rotor with at last one rotor blade for conveying the fluid, the rotor being variable with respect to its diameter between a first, compressed state and a second expanded state. In order to produce a simple compressibility and expandability of the rotor of the pump, it is provided according to the invention that at least one rotor blade is deformable between a first state which it assumes in the compressed state of the rotor and a second state which it assumes in the expanded state of the rotor by means of a fluid counterpressure during a rotation of the rotor during pump operation.
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公开(公告)号：US11661891B1
公开(公告)日：2023-05-30
申请号：US17814334
申请日：2022-07-22
发明人： Narayanan Janakiraman , Paul Mathew , Sreerama Prasad Ramaswamy , Hiranya Nath , Ravindra Shankar Ganiger
CPC分类号： F02C7/30 , F02C7/222 , F05D2220/323 , F05D2260/95 , F05D2300/505 , F05D2300/6111
摘要： A component susceptible to the formation of deposits, such as a component of a hydrocarbon system in a gas turbine engine. The component includes a substrate having a surface susceptible to the formation of a deposit thereon. A shape memory alloy coating is formed on the surface of the substrate. The shape memory alloy coating is a plurality of particles formed on the surface, and each particle of the plurality of particles is formed from a shape memory alloy.
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公开(公告)号：US20230145551A1
公开(公告)日：2023-05-11
申请号：US17767576
申请日：2020-10-12
申请人： SAFRAN , SAFRAN HELICOPTER ENGINES
CPC分类号： B64D29/00 , F01D5/02 , F01D25/005 , F02K1/002 , F05D2220/90 , F05D2240/20 , F05D2300/505
摘要： A propulsion system for an aircraft includes a rotor and a nacelle fairing that extends around the rotor in relation to an axis. The nacelle fairing includes an upstream portion forming an inlet section of the nacelle fairing as well as a downstream portion, a downstream end of which forms an outlet section of the nacelle fairing. The downstream portion includes radially inner and outer walls, both of which are made of a deformable shape memory material. The wall has independently actuatable piston actuator mechanisms, each actuator mechanism being actuatable independently of the others and being designed to cooperate with means built into an inner surface of the wall to deform the wall in a radial direction in relation to the axis under the effect of a predetermined displacement command.
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公开(公告)号：US10053239B2
公开(公告)日：2018-08-21
申请号：US14848393
申请日：2015-09-09
申请人： The Boeing Company
发明人： James H. Mabe , Ali Yousefiani
IPC分类号： B64C3/44 , B64G1/22 , B32B15/01 , B32B3/28 , B32B7/04 , F03G7/06 , B64C1/06 , F02K1/06 , F02K1/10
CPC分类号： B64G1/22 , B32B3/28 , B32B7/05 , B32B15/01 , B32B2250/03 , B32B2307/302 , B32B2307/732 , B32B2605/18 , B64C1/061 , B64G1/10 , B64G1/58 , B64G1/62 , B64G1/66 , F02K1/06 , F02K1/10 , F03G7/065 , F05D2300/505 , Y02T50/672
摘要： In one or more aspects of the present disclosure, an aerospace vehicle includes a frame, an actuable multifunctional cellular structure connected to the frame, the actuable multifunctional cellular structure including a first face member and a second face member, and a shape memory alloy core coupled to the first face member and the second face member, and wherein, at least one of the first face member and the second face member is a graded thermal structure configured so that heat transferred through the graded thermal structure in a predetermined thermal pattern to the shape memory alloy core effects a predetermined change in a shape of the shape memory alloy core and effects a change in shape of the actuable multifunctional cellular structure.
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公开(公告)号：US20180178489A1
公开(公告)日：2018-06-28
申请号：US15838676
申请日：2017-12-12
申请人： ROLLS-ROYCE plc
CPC分类号： B32B7/08 , B29C65/564 , B29C66/721 , B29C66/7212 , B29C66/7392 , B29C70/24 , B32B2262/103 , B32B2262/106 , B32B2262/12 , B32B2305/08 , B32B2603/00 , F01D5/282 , F05D2220/36 , F05D2300/174 , F05D2300/224 , F05D2300/505 , F05D2300/6034 , F05D2300/611 , Y02T50/672 , B29K2307/04
摘要： A composite component comprises a plurality of plies; and a plurality of pins extending through the plies in a direction transverse to the plies. Each of the pins comprises a shape memory alloy.
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公开(公告)号：US20180112672A1
公开(公告)日：2018-04-26
申请号：US15331121
申请日：2016-10-21
发明人： Ravindra Shankar Ganiger , Shuvajyoti Ghosh , Shivaram AC , Akash Joshi , Vidya Lokammanahalli Shivashankar
IPC分类号： F04D29/056 , F02K3/06 , F04D29/32 , F04D29/053 , F16C35/073 , F16C39/02
CPC分类号： F16C39/02 , F01D21/045 , F01D25/162 , F01D25/164 , F02C7/06 , F02K3/06 , F04D29/321 , F04D29/662 , F05D2220/36 , F05D2260/311 , F05D2300/505 , F16C19/06 , F16C19/225 , F16C25/083 , F16C35/073 , F16C2202/06 , F16C2202/08 , F16C2360/23 , Y02T50/671
摘要： A method of reducing loads in a rotor assembly during an imbalance condition, a shape memory alloy recoupler device, and a hybrid bearing support system are provided. The hybrid bearing support system includes a shaft extension fixedly coupled to a rotatable member at a radially inner end of the shaft extension, a radially outer end of said shaft extension fixedly coupled to a rotatable race of a bearing supporting the rotatable member, and a recoupler device formed of a shape memory alloy (SMA) material coupled in parallel with at least a portion of said shaft extension between the radially inner end and the radially outer end.
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公开(公告)号：US09932851B2
公开(公告)日：2018-04-03
申请号：US14576858
申请日：2014-12-19
发明人： Michael P. Dougherty
CPC分类号： F01D17/162 , F01D9/041 , F02C9/20 , F04D27/0246 , F04D29/563 , F05D2240/12 , F05D2260/407 , F05D2260/57 , F05D2270/44 , F05D2270/62 , F05D2270/66 , F05D2270/808 , F05D2300/505
摘要： An improved system, apparatus and method for controlling vane angles in a gas turbine engine, and more specifically, for correcting vane angle error in a gas turbine engine. An active synchronization ring comprises a plurality of micro-actuators coupled to the synchronization ring to correct distortion in the synchronization ring. The micro-actuators apply a bending moment to the synchronization ring to cancel or compensate for synchronization ring distortion. The micro-actuators may be controlled open loop or closed loop. Strain sensors measure ring distortion and provide signals to the controller for closed loop control.
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公开(公告)号：US09617953B2
公开(公告)日：2017-04-11
申请号：US13965362
申请日：2013-08-13
申请人： ROLLS-ROYCE PLC
发明人： John Richard Webster
CPC分类号： F02K1/12 , F02K1/386 , F02K1/48 , F05D2300/505 , Y02T50/672
摘要： A gas turbine engine variable area exhaust nozzle has a plurality of first and second movable members arranged circumferentially around a fan casing extending in downstream. The first and second movable members alternate around the variable area nozzle. During cruise conditions the first and second movable members are in un-actuated positions. At take off conditions the first movable members are in an actuated position and the second movable members are in the un-actuated position. At top of climb conditions the first movable members are in the un-actuated position and the second movable members are in an actuated position. The first movable members move radially outwardly from the un-actuated position to the actuated position and the second movable members move radially inwardly from the un-actuated position to the actuated position.
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