-
公开(公告)号:US11454174B2
公开(公告)日:2022-09-27
申请号:US17147762
申请日:2021-01-13
申请人: ROLLS-ROYCE PLC
发明人: Alan R Maguire
IPC分类号: F02C7/36 , F01D25/16 , F01D25/34 , F02K3/06 , F16H1/28 , F16H57/08 , F01D15/12 , F02C3/107 , F01D5/02 , F02C7/06 , F02K3/04
摘要: A gas turbine engine, in particular an aircraft engine, includes: a turbine connected via an input shaft device to a gearbox device having a sun gear, a planet carrier having a plurality of planet gears attached thereto, and a ring gear, the sun gear is connected to the input shaft device, the planet carrier or the ring gear is connected to a propulsive fan via an output shaft device of the gearbox device, with a rear carrier bearing device radially between the planet carrier and a static structure on the input side of the gearbox device, an inter-shaft bearing system being positioned radially between the input shaft device and the planet carrier of the gearbox device.
-
公开(公告)号:US11448081B2
公开(公告)日:2022-09-20
申请号:US16657739
申请日:2019-10-18
发明人: Timothy R. Dyer , Abhijeet Shrestha
摘要: A machine has: an outer member; an inner member mounted for rotation about an axis relative to the outer member; and a seal system. The seal system has: a seal housing mounted to the outer member; one or more seal rings held by the seal housing and having an inner diameter surface; and a seal runner mounted to the inner member and having a first outer diameter surface portion contacting or facing the inner diameter surface of the one or more seal rings. The seal runner has a circumferential array of mounting features. One or more weights are mounted to one or more of the mounting features.
-
公开(公告)号:US20220282631A1
公开(公告)日:2022-09-08
申请号:US17189487
申请日:2021-03-02
发明人: Fadi S. Maalouf
摘要: A rotating assembly of a gas turbine engine includes a first rotating component; and a second rotating component located radially outboard of the first rotating component, relative to an engine central longitudinal axis. A seal assembly is configured to seal between the first rotating component and the second rotating component. The seal assembly includes a shuttle located on a radial outer surface of the second component and freely axially movable along the radial outer surface and a piston ring seal retained in the shuttle and engaged with the first rotating component. Axial motion of the first rotating component relative to the second rotating component urges movement of the shuttle along the radial outer surface of the second rotating component, while the position of the piston ring seal remains stationary relative to the first rotating component.
-
公开(公告)号:US11421712B2
公开(公告)日:2022-08-23
申请号:US17301167
申请日:2021-03-29
摘要: A rotor for a fluid machine includes a wheel that is supported for rotation about an axis of rotation. The wheel includes a back wall with an outer rim edge. The rotor also includes a plurality of blades that are attached to the back wall and that are spaced apart about the axis of rotation. Moreover, the rotor includes an inter-blade area on the back wall between neighboring ones of the plurality of blades. Furthermore, the rotor includes a balancing feature that is included in the inter-blade area on the back wall. The balancing feature intersects and defines part of the outer rim edge.
-
45.
公开(公告)号:US11421591B2
公开(公告)日:2022-08-23
申请号:US16961550
申请日:2018-08-31
发明人: Pu Jin
摘要: Provided is a rotor system, including a rotating shaft, a shaft body of the rotating shaft being of an integrated structure and the rotating shaft being horizontally arranged; and a motor, an air compressor, a turbine, a thrust bearing and at least two radial bearings which are arranged on the rotating shaft. The thrust bearing and the at least two radial bearings are all non-contact bearings. The thrust bearing is arranged at a preset position on one side of the turbine close to the air compressor. The preset position is such a position that the center of gravity of the rotor system can be located between two radial bearings that are farthest apart among the at least two radial bearings.
-
公开(公告)号:US20220235670A1
公开(公告)日:2022-07-28
申请号:US17596405
申请日:2020-06-04
摘要: The present invention thus proposes an inlet cone for an aircraft turbine engine, comprising a frustoconical body and a tip made from elastically deformable material fixed to an end of smaller diameter of said body, the tip comprising a top configured to be situated on an axis of rotation of the cone and a fastening base for attachment on said end of said body. Said base extends in a connecting plane P. Said connecting plane P is inclined relative to said axis of rotation. Said base has a generally circular or oval shape. According to the invention, said connecting plane P is inclined relative to a transverse plane T perpendicular to said axis of rotation.
-
公开(公告)号:US20220220853A1
公开(公告)日:2022-07-14
申请号:US17657409
申请日:2022-03-31
发明人: Michael Ericson Friedman , Gang Liu
摘要: A turbine rotor includes a rotor body and a balancing weight slot defined in an exterior circumference of the body. The balancing weight slot has a first axial width and a first radially outward facing surface at a first radial distance from a rotor axis. The rotor also includes a balancing weight entry port defined in a portion of the exterior circumference of the rotor body and aligned with the balancing weight slot. The balancing weight entry port has a second axial width greater than the first axial width and a second radially outward facing surface at a second radial distance from the axis of the rotor body that is smaller than the first radial distance. A method may include machining the entry port into the rotor with a tool. The method may be applied to a new rotor, or to remove cracks initiating from a previous entry port.
-
公开(公告)号:US20220205362A1
公开(公告)日:2022-06-30
申请号:US17135215
申请日:2020-12-28
摘要: A rotor assembly adapted for a gas turbine engine includes a shaft, a wheel, and a retaining nut. The shaft extends along an axis and includes a first tapered surface. The wheel is arranged circumferentially around the shaft and includes a second tapered surface. The retaining nut is fastened to the shaft and applies an axial force to the wheel to couple the wheel with the shaft.
-
公开(公告)号:US11371825B2
公开(公告)日:2022-06-28
申请号:US16739052
申请日:2020-01-09
发明人: Sean Durand , Richard Kudrna , Ian Farrell
摘要: A blade angle feedback assembly for an aircraft-bladed rotor is provided. The rotor is rotatable about a longitudinal axis and having an adjustable blade pitch angle. The assembly comprises a feedback device coupled to rotate with the rotor with adjustment of the blade pitch angle, the feedback device comprising a non-magnetically permeable body defining a root surface and a plurality of magnetically permeable position markers circumferentially disposed on the root surface, and at least one sensor mounted adjacent the feedback device and configured to detect a passage of the plurality of position markers as the feedback device rotates about the longitudinal axis.
-
公开(公告)号:US11371356B2
公开(公告)日:2022-06-28
申请号:US17149142
申请日:2021-01-14
申请人: ROLLS-ROYCE PLC
发明人: Rohit Chouhan , Soumyik Bhaumik
摘要: An aerofoil assembly includes a platform and a plurality of aerofoils extending radially outward from the platform. The platform has a first edge, a second edge, and a platform surface disposed between the first edge and the second edge. Each aerofoil has a leading edge proximal to the first edge and a trailing edge distal to the first edge. A pitch spacing is defined between the leading edges of adjacent aerofoils along the platform surface. A mid-pitch location is defined midway along the pitch spacing. The platform defines one or more recesses disposed between the leading edges of the plurality of aerofoils and the first edge. Each of the one or more recesses is disposed proximal to the mid-pitch location between adjacent aerofoils.
-
-
-
-
-
-
-
-
-