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公开(公告)号：US20190112940A1
公开(公告)日：2019-04-18
申请号：US15786367
申请日：2017-10-17
发明人： William S. Pratt , Anand Nagaraj , Diane C. Kjelby
CPC分类号： F01D17/162 , F01D9/041 , F01D17/165 , F02C9/20 , F05D2220/32 , F05D2230/60 , F05D2240/12 , F05D2260/79
摘要： A vane arm may comprise a first end having a first surface and a second surface opposite the first surface. A vane stem aperture may be formed through the first end of the vane arm. The first surface may define a first perimeter of the vane stem aperture. The second surface may defines a second perimeter of the vane stem aperture. The second perimeter may comprise a circular or elliptical shape. A first wedge face and second wedge face may define a portion of the vane stem aperture.
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公开(公告)号：US11352903B2
公开(公告)日：2022-06-07
申请号：US16747065
申请日：2020-01-20
IPC分类号： F01D25/12
摘要： A rotor stack for a gas turbine engine includes a first rotor disk with a first rotor spacer arm, the first rotor spacer arm having a first flange with an outboard flange surface and an inboard flange surface, a first hole along an axis through the first flange, the first hole having a counterbore in the outboard flange surface; a second rotor disk with a web having a second hole along the axis; a third rotor disk with a third rotor spacer arm, the third rotor spacer arm having a third flange with an outboard flange surface and an inboard flange surface, a third hole along the axis through the third flange, the third hole having a counterbore in the inboard flange surface; and a bushing with a tubular body and a flange that extends therefrom, the tubular body comprising at least one axial groove along an outer diameter thereof, the bushing extends through the first hole, the second hole and partially into the counterbore in the inboard flange surface of the third hole.
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公开(公告)号：US20210254480A1
公开(公告)日：2021-08-19
申请号：US16793307
申请日：2020-02-18
摘要： A rotor disk assembly for a gas turbine engine includes a rotor disk that defines an axis, the rotor disk comprising a slot within a rim of the disk and a spacer within the slot, the spacer having a clearance feature sized to permit rotation of a rotor blade from an insertion position to an installed position.
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公开(公告)号：US10968767B2
公开(公告)日：2021-04-06
申请号：US15968058
申请日：2018-05-01
IPC分类号： F01D17/16
摘要： A variable vane actuation system of a gas turbine engine is provided. The variable vane actuation system including: a variable vane; a vane stem operably associated with the variable vane, wherein the variable vane is configured to rotate with the vane stem; a vane arm having vane stem end and a vane pin end opposite the vane stem end, the vane arm being operably connected to the vane stem at the vane stem end; and a rotational variable differential transformer operably connected to the vane stem, the rotational variable differential transformer configured to detect an amount of rotation of the vane stem.
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公开(公告)号：US20210071543A1
公开(公告)日：2021-03-11
申请号：US16561540
申请日：2019-09-05
发明人： William S. Pratt , Ryan M. Stanley , Adam Hart
IPC分类号： F01D17/16
摘要： A synchronizing ring assembly includes a synchronizing ring portion that has a first and a second distal end, the first and the second distal end each form an integrated surge bumper.
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公开(公告)号：US20200248579A1
公开(公告)日：2020-08-06
申请号：US16267581
申请日：2019-02-05
发明人： William S. Pratt , Ryan M. Stanley , Adam Hart
摘要： A synchronizing assembly including: a synchronizing ring having a countersunk orifice; and a bumper assembly comprising: a bumper at least partially enclosing a cavity, the bumper comprising an outward side, an inward side opposite the outward side, a first side extending between the outward side and the inward side, a first opening on the outward side extending into the bumper to define a first portion of the cavity; and a second opening on the first side extending into the bumper to define a second portion of the cavity; and a bolt comprising a bolt head and a bolt shank, wherein the bolt shank extends through the first opening and the bolt head is secured within the second portion of the cavity, wherein the bumper further comprises a raised boss extending away from the outward surface, the raised boss configured to mate with the countersunk orifice of the synchronizing ring.
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公开(公告)号：US11125106B2
公开(公告)日：2021-09-21
申请号：US16561540
申请日：2019-09-05
发明人： William S. Pratt , Ryan M. Stanley , Adam Hart
摘要： A synchronizing ring assembly includes a synchronizing ring portion that has a first and a second distal end, the first and the second distal end each form an integrated surge bumper.
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公开(公告)号：US11008879B2
公开(公告)日：2021-05-18
申请号：US16251674
申请日：2019-01-18
摘要： A vane arm assembly for a gas turbine engine is provided including: a vane arm having a first end, a second end opposite the first end, and an aperture proximate the second end, the aperture being defined by an aperture wall; a vane stem extending through the aperture of the vane arm; a mechanical fastener retaining a position of the vane arm in the longitudinal direction of the vane stem; and an impedance clip partially enclosing a portion of the second end of the vane arm to provide redundant position retention of the vane arm in the longitudinal direction of the vane stem.
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公开(公告)号：US10830086B2
公开(公告)日：2020-11-10
申请号：US16038344
申请日：2018-07-18
发明人： William S. Pratt , Paul W. Duesler
摘要： A cam isolation system for a gas turbine engine compressor actuator includes a torque tube. The system also includes a cam bracket operatively coupled to an engine case structure, the cam bracket defining a slot. The system further includes an actuator bracket operatively coupled to the torque tube at a first end of the actuator bracket, the actuator bracket having a pin disposed within the slot of the cam bracket.
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公开(公告)号：US20200025023A1
公开(公告)日：2020-01-23
申请号：US16038344
申请日：2018-07-18
发明人： William S. Pratt , Paul W. Duesler
摘要： A cam isolation system for a gas turbine engine compressor actuator includes a torque tube. The system also includes a cam bracket operatively coupled to an engine case structure, the cam bracket defining a slot. The system further includes an actuator bracket operatively coupled to the torque tube at a first end of the actuator bracket, the actuator bracket having a pin disposed within the slot of the cam bracket.
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