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公开(公告)号：US11105338B2
公开(公告)日：2021-08-31
申请号：US16579011
申请日：2019-09-23
Inventor： Michael Nesteroff , Jonathan Acker , Jeffrey Crutchfield , Nate Cooper , Mark Whitlock , Nathan Ottow
IPC: F04D29/42 , F04D29/16 , F01D5/04 , F01D11/22 , F04D17/02 , F04D17/10 , F02C3/08 , F04D27/02 , F01D11/08 , F04D29/62 , F01D11/18
Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.
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公开(公告)号：US10935044B2
公开(公告)日：2021-03-02
申请号：US16529404
申请日：2019-08-01
Applicant: Rolls-Royce Corporation
Inventor： Nathan Ottow , Johnathan Acker , Nate Cooper , Mark Whitlock , Michael Nesteroff
Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.
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公开(公告)号：US20190383304A1
公开(公告)日：2019-12-19
申请号：US16007647
申请日：2018-06-13
Applicant: Rolls-Royce Corporation
Inventor： Grace Aker , Michael Nesteroff , Mark Eric Whitlock , Cassandra Cummings , Jonathan Acker , Younes Khamliche , Nathanael Cooper
Abstract: A centrifugal impeller shroud assembly has a dynamically moveable impeller shroud for encasing a rotatable centrifugal impeller and resolving misalignment between the impeller shroud and the rotatable centrifugal impeller. The assembly comprises a static casing, an impeller shroud, a shroud arm, and a thermal member. The shroud arm is coupled between the casing and the impeller shroud. The thermal member is coupled to the impeller shroud and has a coefficient of thermal expansion (CTE) lower than the CTE of the shroud. The shroud arm comprises a flexible portion configured to flex responsive to a differential pressure across the shroud arm.
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4.发明申请公开(公告)号：US20170342996A1
公开(公告)日：2017-11-30
申请号：US15234601
申请日：2016-08-11
Inventor： Michael Nesteroff , Jonathan Acker , Jeffrey Crutchfield , Nate Cooper , Mark Whitlock , Nathan Ottow
Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.
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公开(公告)号：US11525393B2
公开(公告)日：2022-12-13
申请号：US16824171
申请日：2020-03-19
Applicant: Rolls-Royce Corporation
Inventor： Mark E. Whitlock , Nathanael Cooper , Steven Mazur , Michael Nesteroff , Paul Melevage
Abstract: A gas turbine engine includes a fan, a compressor, a combustor, and a turbine. The compressor compresses gases entering the gas turbine engine. The combustor receives the compressed gases from the compressor and mixes fuel with the compressed gases. The turbine receives the hot, high pressure combustion products created by the combustor by igniting the fuel mixed with the compressed gases. The turbine extracts mechanical work from the hot, high pressure combustion products to drive the fan and compressor.
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Patent Agency Ranking
公开(公告)号：US20210062824A1
公开(公告)日：2021-03-04
申请号：US16579011
申请日：2019-09-23
Inventor： Michael Nesteroff , Jonathan Acker , Jeffrey Crutchfield , Nate Cooper , Mark Whitlock , Nathan Ottow
Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.
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公开(公告)号：US10704560B2
公开(公告)日：2020-07-07
申请号：US16007647
申请日：2018-06-13
Applicant: Rolls-Royce Corporation
Inventor： Grace Aker , Michael Nesteroff , Mark Eric Whitlock , Cassandra Cummings , Jonathan Acker , Younes Khamliche , Nathanael Cooper
IPC: F04D29/16 , F04D29/02 , F04D29/42 , F01D11/20 , F01D11/08 , F04D29/62 , F01D11/24 , F01D11/16 , F01D11/18 , F01D11/22
Abstract: A centrifugal impeller shroud assembly has a dynamically moveable impeller shroud for encasing a rotatable centrifugal impeller and resolving misalignment between the impeller shroud and the rotatable centrifugal impeller. The assembly comprises a static casing, an impeller shroud, a shroud arm, and a thermal member. The shroud arm is coupled between the casing and the impeller shroud. The thermal member is coupled to the impeller shroud and has a coefficient of thermal expansion (CTE) lower than the CTE of the shroud. The shroud arm comprises a flexible portion configured to flex responsive to a differential pressure across the shroud arm.
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公开(公告)号：US10408226B2
公开(公告)日：2019-09-10
申请号：US15165728
申请日：2016-05-26
Applicant: Rolls-Royce Corporation
Inventor： Nathan Ottow , Jonathan Acker , Nate Cooper , Mark Whitlock , Michael Nesteroff
Abstract: A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud.
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公开(公告)号：US20220333525A1
公开(公告)日：2022-10-20
申请号：US17747960
申请日：2022-05-18
Applicant: Rolls-Royce Corporation
Inventor： Mark E. Whitlock , Nathanael Cooper , Steven Mazur , Michael Nesteroff , Paul Melevage
Abstract: A gas turbine engine includes a fan, a compressor, a combustor, and a turbine. The compressor compresses gases entering the gas turbine engine. The combustor receives the compressed gases from the compressor and mixes fuel with the compressed gases. The turbine receives the hot, high pressure combustion products created by the combustor by igniting the fuel mixed with the compressed gases. The turbine extracts mechanical work from the hot, high pressure combustion products to drive the fan and compressor.
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公开(公告)号：US11426794B2
公开(公告)日：2022-08-30
申请号：US16594747
申请日：2019-10-07
Inventor： Michael Nesteroff , Matthew R. Gold
Abstract: A composite component may include a substrate including a first material and defining a surface; and at least one feature attached to the surface of the substrate. The at least one feature may include a second, different material attached to the surface using cold spraying. Cold spraying may include accelerating particles of the second material toward the surface without melting the particles.
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