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公开(公告)号：US10040577B2
公开(公告)日：2018-08-07
申请号：US15042363
申请日：2016-02-12
发明人： Matthew D. Teicholz , Jeffrey W. Sutliff , William H. Greene, Jr. , Kenneth J. White , Matthew R. Feulner , John P. Virtue, Jr. , Jorn A. Glahn , Philip D. Hoover , Victor M. Pinedo , Jason B. Solomonides
CPC分类号： B64F1/34 , B64D27/16 , F02C7/27 , F02C7/277 , F05D2220/323 , F05D2260/85 , F05D2270/303 , F05D2270/71
摘要： A system for starting a gas turbine engine of an aircraft is provided. The system includes a pneumatic starter motor, a discrete starter valve switchable between an on-state and an off-state, and a controller operable to perform a starting sequence for the gas turbine engine. The starting sequence includes alternating on and off commands to an electromechanical device coupled to the discrete starter valve to achieve a partially open position of the discrete starter valve to control a flow from a starter air supply to the pneumatic starter motor to drive rotation of a starting spool of the gas turbine engine below an engine idle speed.
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公开(公告)号：US20170233103A1
公开(公告)日：2017-08-17
申请号：US15042363
申请日：2016-02-12
发明人： Matthew D. Teicholz , Jeffrey W. Sutliff , William H. Greene, JR. , Kenneth J. White , Matthew R. Feulner , John P. Virtue, JR. , Jorn A. Glahn , Philip D. Hoover , Victor M. Pinedo , Jason B. Solomonides
CPC分类号： B64F1/34 , B64D27/16 , F02C7/27 , F02C7/277 , F05D2220/323 , F05D2260/85 , F05D2270/303 , F05D2270/71
摘要： A system for starting a gas turbine engine of an aircraft is provided. The system includes a pneumatic starter motor, a discrete starter valve switchable between an on-state and an off-state, and a controller operable to perform a starting sequence for the gas turbine engine. The starting sequence includes alternating on and off commands to an electromechanical device coupled to the discrete starter valve to achieve a partially open position of the discrete starter valve to control a flow from a starter air supply to the pneumatic starter motor to drive rotation of a starting spool of the gas turbine engine below an engine idle speed.
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公开(公告)号：US20180327117A1
公开(公告)日：2018-11-15
申请号：US16034550
申请日：2018-07-13
发明人： Matthew D. Teicholz , Jeffrey W. Sutliff , William H. Greene, JR. , Kenneth J. White , Matthew R. Feulner , John P. Virtue, JR. , Jorn A. Glahn , Philip D. Hoover , Victor M. Pinedo , Jason B. Solomonides
摘要： A system for starting a gas turbine engine of an aircraft is provided. The system includes a pneumatic starter motor, a discrete starter valve switchable between an on-state and an off-state, and a controller operable to perform a starting sequence for the gas turbine engine. The starting sequence includes alternating on and off commands to an electromechanical device coupled to the discrete starter valve to achieve a partially open position of the discrete starter valve to control a flow from a starter air supply to the pneumatic starter motor to drive rotation of a starting spool of the gas turbine engine below an engine idle speed, where the controller modulates a duty cycle of the discrete starter valve via pulse width modulation.
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公开(公告)号：US20180265223A1
公开(公告)日：2018-09-20
申请号：US15985782
申请日：2018-05-22
发明人： Matthew D. Teicholz , Jeffrey W. Sutliff , William H. Greene, JR. , Kenneth J. White , Matthew R. Feulner , John P. Virtue, JR. , Jorn A. Glahn , Philip D. Hoover , Victor M. Pinedo , Jason B. Solomonides
CPC分类号： B64F1/34 , B64D27/16 , F02C7/27 , F02C7/277 , F05D2220/323 , F05D2260/85 , F05D2270/303 , F05D2270/71
摘要： A system for controlling a start sequence of a gas turbine engine includes an electronic engine control system, a thermal model, memory, a model for determining a time period (fmotoring), and a controller. The thermal model synthesizes a heat state of the gas turbine engine. The memory records the current heat state at shutdown and a shutdown time of the gas turbine engine. The model for determining the time period is for motoring the gas turbine engine at a predetermined speed Ntarget that is less than a speed to start the gas turbine engine, where tmotoring is a function of the heat state recorded at engine shutdown and an elapsed time of an engine start request relative to a previous shutdown time. The controller modulates a starter valve to maintain the gas turbine engine within a predetermined speed range of NtargetMin to NtargetMax for homogenizing engine temperatures.
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公开(公告)号：US10787277B2
公开(公告)日：2020-09-29
申请号：US16034550
申请日：2018-07-13
发明人： Matthew D. Teicholz , Jeffrey W. Sutliff , William H. Greene, Jr. , Kenneth J. White , Matthew R. Feulner , John P. Virtue, Jr. , Jorn A. Glahn , Philip D. Hoover , Victor M. Pinedo , Jason B. Solomonides
摘要： A system for starting a gas turbine engine of an aircraft is provided. The system includes a pneumatic starter motor, a discrete starter valve switchable between an on-state and an off-state, and a controller operable to perform a starting sequence for the gas turbine engine. The starting sequence includes alternating on and off commands to an electromechanical device coupled to the discrete starter valve to achieve a partially open position of the discrete starter valve to control a flow from a starter air supply to the pneumatic starter motor to drive rotation of a starting spool of the gas turbine engine below an engine idle speed, where the controller modulates a duty cycle of the discrete starter valve via pulse width modulation.
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