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公开(公告)号：US10458429B2
公开(公告)日：2019-10-29
申请号：US15234601
申请日：2016-08-11
Inventor： Michael Nesteroff , Jonathan Acker , Jeffrey Crutchfield , Nate Cooper , Mark Whitlock , Nathan Ottow
IPC: F01D11/22 , F04D29/42 , F04D29/16 , F01D5/04 , 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：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：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：US20170343334A1
公开(公告)日：2017-11-30
申请号：US15165153
申请日：2016-05-26
Applicant: Rolls-Royce Corporation
Inventor： Mark Whitlock , Jonathan Acker
IPC: G01B11/14
CPC classification number: G01B11/14
Abstract: A method of measuring the clearance between a rotating component and a static component in a rotating machine. The method comprises installing a rub pin on an interior surface of the static component, operating the rotating machine such that the rotating component impinges on the rub pin, securing the rotating machine, and inserting an optical device to visually ascertain the length of rub pin remaining. The method reduces the time and cost of clearance determinations by avoiding disassembly or the degree of disassembly of the rotating machine required to conduct a clearance determination.
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公开(公告)号：US20170342995A1
公开(公告)日：2017-11-30
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
CPC classification number: F04D29/4206 , F01D11/08 , F01D11/22 , F01D25/24 , F04D27/0246 , F04D29/162 , F04D29/622 , F05D2220/3219 , F05D2240/11 , F05D2250/281 , F05D2260/57 , F05D2270/3013 , F05D2270/305
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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Patent Agency Ranking
公开(公告)号：US20190353180A1
公开(公告)日：2019-11-21
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：US20180017078A1
公开(公告)日：2018-01-18
申请号：US15208229
申请日：2016-07-12
Applicant: Rolls-Royce Corporation
Inventor： Steven Mazur , Mark Whitlock , Jonathan Acker , Nate Cooper
CPC classification number: F04D29/545 , F01D9/045 , F02K3/06 , F04D17/10 , F04D19/02 , F04D29/284 , F04D29/321 , F04D29/444 , F05D2220/32 , F05D2240/128 , F05D2240/14 , F05D2240/30 , F05D2240/55
Abstract: An engine includes a compressor having a first compressor, a second compressor, and a static hub transition duct. The first compressor includes a rotatable portion and a static portion. The second compressor is disposed downstream of the first compressor and includes an inlet and a rotatable portion. The static hub transition duct includes an inner wall and an outer wall. The inner wall is secured to the static portion of the first compressor, and the inner wall and outer wall define a space that fluidically couples the first compressor and the inlet of the second compressor.
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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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10.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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