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公开(公告)号：US11002284B2
公开(公告)日：2021-05-11
申请号：US16433089
申请日：2019-06-06
Applicant: Rolls-Royce Corporation
Inventor： Michael Nesteroff , Jonathan Acker , Nate Cooper , 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 thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.
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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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3.发明申请公开(公告)号：US20190323514A1
公开(公告)日：2019-10-24
申请号：US16433089
申请日：2019-06-06
Applicant: Rolls-Royce Corporation
Inventor： Michael Nesteroff , Jonathan Acker , Nate Cooper , 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 thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.
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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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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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Patent Agency Ranking
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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7.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：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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10.发明申请公开(公告)号：US20170343002A1
公开(公告)日：2017-11-30
申请号：US15165555
申请日：2016-05-26
Applicant: Rolls-Royce Corporation
Inventor： Nathan Ottow , Jonathan Acker , Nate Cooper
CPC classification number: F04D29/162 , F04D27/002 , F04D27/0246 , F04D29/284 , F04D29/4206 , F05D2220/32 , F05D2240/11 , F05D2260/50 , F05D2260/57
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 two-piece integral impeller shroud with a fixed inner member and a variable outer member. An actuator is coupled to an aft end of the variable outer member and imparts axially forward and aft motion on the aft end, causing deflection of the outer member.
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