公开(公告)号：US11892003B2

公开(公告)日：2024-02-06

申请号：US16294358

申请日：2019-03-06

申请人： General Electric Company

发明人： James Ryan Reepmeyer ,  Johan Michael Reimann ,  Gagan Adibhatla ,  Evin Nathaniel Barber ,  Stefan Joseph Cafaro ,  Rahim Panjwani ,  Frederick John Menditto, III ,  Aaron James Schmitz ,  Suchot Kongsomboonvech ,  Richard Anthony Zelinski

IPC分类号： F04D27/00 ,  G01M15/14 ,  G05B13/02 ,  G06N3/04 ,  F04D27/02 ,  G06N3/044 ,  G06N3/045

CPC分类号： F04D27/001 ,  F04D27/02 ,  F04D27/0207 ,  F04D27/0246 ,  F04D27/0253 ,  G01M15/14 ,  G05B13/027 ,  G06N3/04 ,  G06N3/044 ,  G06N3/045 ,  F05D2270/101 ,  F05D2270/709

摘要： A control system for active stability management of a compressor element of a turbine engine is provided. In one example aspect, the control system includes one or more computing devices configured to receive data indicative of an operating characteristic associated with the compressor element. For instance, the data can be received from a high frequency sensor operable to sense pressure at the compressor element. The computing devices are also configured to determine, by a machine-learned model, a stall margin remaining of the compressor element based at least in part on the received data. The machine-learned model is trained to recognize certain characteristics of the received data and associate the characteristics with a stall margin remaining of the compressor element. The computing devices are also configured to cause adjustment of one or more engine systems based at least in part on the determined stall margin remaining.

公开(公告)号：US11879468B2

公开(公告)日：2024-01-23

申请号：US17837554

申请日：2022-06-10

申请人： Carrier Corporation

发明人： Kai Deng ,  Vishnu Sishtla ,  Jun Cao ,  Yuchang Shac

IPC分类号： F04D27/02 ,  F04D17/10 ,  F04D27/00

CPC分类号： F04D17/10 ,  F04D27/004 ,  F04D27/0246 ,  F04D27/0261 ,  F04D27/0253 ,  F05D2250/51

摘要： A control method for a centrifugal compressor and an air conditioning system. The control method for the centrifugal compressor includes: S100, when an inlet opening of the centrifugal compressor is below a first preset value, shutting down a drive motor of the centrifugal compressor; or S200, when the inlet opening of the centrifugal compressor is not below the first preset value, performing the following operations in a preset order: decreasing the inlet opening of the centrifugal compressor, and increasing a rotate speed of the centrifugal compressor.

公开(公告)号：US20230184251A1

公开(公告)日：2023-06-15

申请号：US17999327

申请日：2021-05-20

申请人： Edwards Limited

发明人： Nigel Paul Schofield ,  Alan Ernest Kinnaird Holbrook

IPC分类号： F04C27/00 ,  F04C18/02 ,  F04D27/02

CPC分类号： F04C27/009 ,  F04C18/0215 ,  F04D27/0246 ,  F04C27/002 ,  F04C27/004 ,  F04C2210/14

摘要： A scroll vacuum pump has an axially extending drive shaft with an eccentric shaft portion, such that rotation of the drive shaft imparts an orbiting motion to an orbiting scroll relative to a fixed scroll. An axial adjustment mechanism has a plurality of adjustment members angularly spaced around the drive shaft and extending through the pump housing towards the orbiting scroll, the plurality of adjustment members each being configured to provide an independently adjustable axial position of the orbiting scroll. A plurality of sealing means isolate the plurality of adjustment members from a pump chamber, the plurality of sealing means extending around each of the plurality of adjustment members and comprising at least one flexible portion such that one end of the sealing means may orbit relative to a fixed other end of the sealing means.

公开(公告)号：US20190061969A1

公开(公告)日：2019-02-28

申请号：US16110699

申请日：2018-08-23

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Philippe Beauchesne-Martel

IPC分类号： B64D31/06 ,  F01D17/16 ,  F01D17/10

CPC分类号： B64D31/06 ,  F01D17/105 ,  F01D17/16 ,  F02C9/20 ,  F02C9/54 ,  F04D27/0246 ,  F05D2220/323 ,  F05D2270/03 ,  F05D2270/053 ,  F05D2270/061 ,  F05D2270/304 ,  F05D2270/309 ,  F05D2270/54

摘要： Herein provided are methods and systems for controlling an engine having a variable geometry mechanism. A power level difference between a requested engine power level and a current engine power level is determined at a computing device. The power level difference is compared to a predetermined power threshold at the computing device. When the power level difference exceeds the predetermined power threshold, a position control signal for changing a position of the variable geometry mechanism is generated and output at the computing device, the position control signal generated based on a requisite bias level, the requisite bias level being based on the power level difference.

公开(公告)号：US20180306196A1

公开(公告)日：2018-10-25

申请号：US15495061

申请日：2017-04-24

申请人： Lennox Industries Inc.

发明人： Brandon ULLRICH ,  Wei WANG

IPC分类号： F04D27/02 ,  F04C28/28 ,  F04C28/24 ,  F04C29/00 ,  F04D25/06 ,  F25B49/02 ,  F25B43/00

CPC分类号： F04D27/0246 ,  F04B49/06 ,  F04C23/008 ,  F04C28/06 ,  F04C28/24 ,  F04C28/28 ,  F04C29/0085 ,  F04C2240/40 ,  F04C2270/07 ,  F04D25/06 ,  F25B31/023 ,  F25B41/04 ,  F25B49/005 ,  F25B49/022 ,  F25B2500/07 ,  F25B2500/29 ,  F25B2600/0261 ,  F25B2600/0271 ,  F25B2700/151 ,  F25B2700/2115

摘要： A rotary compressor system includes a compressor housing that includes a compressor motor that draws in fluid from a suction side. The fluid is compressed within a compression chamber and discharged through a discharge side. The compression chamber is disposed between the suction side and the discharge side. An overload-protection switch is electrically coupled in series with the compressor motor and is adapted to cut power to the compressor motor responsive to an overload event. A solenoid valve is fluidly coupled between the compression chamber and a location upstream of the suction side and is electrically coupled in series with the overload-protection switch. An interruption of electrical current to the compressor motor also interrupts electrical current to the solenoid valve, which opens the solenoid valve to equalize pressure between the suction side and the discharge side.

公开(公告)号：US09938991B2

公开(公告)日：2018-04-10

申请号：US14841391

申请日：2015-08-31

申请人： Ford Global Technologies, LLC

发明人： Ahsanul Karim ,  Brian W. Lizotte ,  Keith D. Miazgowicz ,  Abdelkrim Zouani

IPC分类号： F04D27/02 ,  F04D29/66 ,  F02M35/12 ,  F02C7/045 ,  F04D29/28 ,  F04D29/40 ,  F02B33/40 ,  F04D17/10 ,  F04D29/42 ,  F04D29/44

CPC分类号： F04D29/663 ,  F02B33/40 ,  F02C7/045 ,  F02M35/12 ,  F04D17/10 ,  F04D27/02 ,  F04D27/0246 ,  F04D29/284 ,  F04D29/403 ,  F04D29/4206 ,  F04D29/4213 ,  F04D29/441 ,  F04D29/665 ,  F04D29/667 ,  F04D29/668 ,  F05D2220/40 ,  F05D2250/51

摘要： A turbocharger and a method are disclosed. The turbocharger includes a casing having an inlet end and an outlet end. A flow passage within the casing may have a substantially continuous inner surface and may be configured to pass inlet air from the inlet end to the outlet end. A compressor wheel may be located in the casing and may have at least one main blade and may be configured to rotate within the casing to compress the inlet air. A flow disrupting feature on the casing may be configured to disrupt the continuity of the inner surface and may be located at a leading edge of the at least one main blade. The flow disrupting feature may be closed to upstream communication with the flow passage except via the flow passage.

公开(公告)号：US09932851B2

公开(公告)日：2018-04-03

申请号：US14576858

申请日：2014-12-19

申请人： Rolls-Royce North American Technologies, Inc.

发明人： Michael P. Dougherty

IPC分类号： F01D17/16 ,  F01D9/04 ,  F04D27/02 ,  F02C9/20 ,  F04D29/56

CPC分类号： F01D17/162 ,  F01D9/041 ,  F02C9/20 ,  F04D27/0246 ,  F04D29/563 ,  F05D2240/12 ,  F05D2260/407 ,  F05D2260/57 ,  F05D2270/44 ,  F05D2270/62 ,  F05D2270/66 ,  F05D2270/808 ,  F05D2300/505

摘要： An improved system, apparatus and method for controlling vane angles in a gas turbine engine, and more specifically, for correcting vane angle error in a gas turbine engine. An active synchronization ring comprises a plurality of micro-actuators coupled to the synchronization ring to correct distortion in the synchronization ring. The micro-actuators apply a bending moment to the synchronization ring to cancel or compensate for synchronization ring distortion. The micro-actuators may be controlled open loop or closed loop. Strain sensors measure ring distortion and provide signals to the controller for closed loop control.

公开(公告)号：US20180041152A1

公开(公告)日：2018-02-08

申请号：US15667710

申请日：2017-08-03

申请人： ROLLS-ROYCE plc

发明人： Stephen DENNISON

IPC分类号： H02P9/04 ,  F02C9/54 ,  F02C9/52

CPC分类号： H02P9/04 ,  F01D15/10 ,  F02C9/18 ,  F02C9/20 ,  F02C9/52 ,  F02C9/54 ,  F04D27/0223 ,  F04D27/0246 ,  F05D2220/76 ,  F05D2270/06 ,  F05D2270/101 ,  F05D2270/335 ,  H02P9/40 ,  H02P25/092 ,  H02P2101/30

摘要： Method of operating an engine and electricity generator powered by torque from the engine is provided. The engine has a working-line which is a locus of engine operating points as the engine is throttled. The method includes increasing electrical-load on the generator. Repeatedly performing steps of: (i) detecting the engine working-line position; (ii) determining if the detected working-line position is sufficient for the engine to provide additional torque to power the generator while maintaining engine operation within range of acceptable engine operating conditions relative to the detected working-line position; (iii) when determination at step (ii) is that the engine operating condition is insufficient, modifying engine operational parameters to adjust the working-line position for the engine to provide additional torque while maintaining engine operation within the range of acceptable engine operating conditions; and (iv) increasing electrical-output from the generator by an amount so the engine provides additional torque. Repeating steps until the generator electrical-output matches electrical-load.

公开(公告)号：US09845807B2

公开(公告)日：2017-12-19

申请号：US14408233

申请日：2013-09-12

申请人： MITSUBISHI HEAVY INDUSTRIES COMPRESSOR CORPORATION ,  MITSUBISHI HEAVY INDUSTRIES, LTD.

发明人： Kazuhiro Takeda ,  Yosuke Nakagawa

IPC分类号： F04D27/02 ,  F04D25/16 ,  F04D27/00

CPC分类号： F04D27/0269 ,  F04D25/16 ,  F04D27/001 ,  F04D27/004 ,  F04D27/0223 ,  F04D27/0246 ,  F04D27/0253

摘要： Provided is a compressor control device configured to control a flow rate of a compressor having a plurality of impellers connected to an outlet port-side flow path in parallel and a flow rate regulation unit configured to regulate a flow rate of each of the impellers, the compressor control device including a pressure detection unit configured to detect a pressure of the outlet port-side flow path, a flow rate detection unit configured to detect the flow rate of each of the impellers, and a control unit configured to output a flow rate regulation command of each of the impellers to the flow rate regulation unit and control the flow rate regulation unit based on the detection result of the pressure detection unit.

公开(公告)号：US20170356684A1

公开(公告)日：2017-12-14

申请号：US15687668

申请日：2017-08-28

申请人： TRANE INTERNATIONAL INC.

发明人： Lee L. SIBIK

IPC分类号： F25B49/02 ,  F04B49/10 ,  F04B49/08 ,  F04D27/02

CPC分类号： F25B49/022 ,  F04B49/08 ,  F04B49/103 ,  F04D27/0246 ,  F04D27/0261 ,  F25B2339/047 ,  F25B2600/0262 ,  F25B2700/195 ,  F25B2700/197 ,  F25B2700/21161 ,  F25B2700/21172 ,  F25B2700/21173

摘要： Methods and systems for controlling a chiller system to achieve control stability while maintaining optimum efficiency. Particularly, methods and systems for controlling a centrifugal compressor speed and an inlet guide vane position that establishes three distinct regions in the control path: (i) during initial unloading from full load, the inlet guide vane position is kept at a fully open position while the centrifugal compressor speed is changed to achieve the desired cooling capacity; (ii) between an inflection point and a transition point, keeping the centrifugal compressor speed constant while the inlet guide vane position is changed to achieve the desired cooling capacity; and (iii) between the transition point and zero cooling capacity, changing both the inlet guide vane position and the centrifugal compressor speed to achieve the desired cooling capacity.