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公开(公告)号：US20190040805A1
公开(公告)日：2019-02-07
申请号：US15666350
申请日：2017-08-01
申请人： Woodward, Inc.
发明人： Jason Barta , Gregory James Hampson
摘要： An apparatus for monitoring combustion and/or controlling operation of an internal combustion engine includes a processor to receive input from a crank angle sensor and a combustion chamber pressure sensor. The processor receives a first pressure signal during a first volume during the compression phase and a second pressure signal during a second volume corresponding to a portion of expansion phase, where volumes are equal or equivalent. The processor determines an indication of combustion quality of each combustion event, such as poor fire or misfire, based on a comparison of the difference between the first and second pressures to a threshold value associated with each volume.
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公开(公告)号：US20180321105A1
公开(公告)日：2018-11-08
申请号：US15971957
申请日：2018-05-04
申请人： WOODWARD, INC.
CPC分类号： G01L23/222 , F02B77/085 , F02D19/0623 , F02D19/0647 , F02D19/081 , F02D19/10 , F02D35/023 , F02D41/0025 , F02D41/0027 , F02D41/22 , F02D41/3047 , F02D2200/0404 , F02D2200/0614 , G01L23/22
摘要： A method of detecting uncontrolled combustion in an internal combustion engine includes sampling in-cylinder pressure sensor configured to measure pressure in a cylinder of the engine and generate a pressure signal, calculating a combustion intensity metric based on the pressure signal, determining a parameter describing how close the engine is to an uncontrolled combustion condition based on the combustion intensity metric, and controlling a substitution rate of a first fuel and a second fuel based on one or more of the parameter and the combustion intensity metric.
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公开(公告)号：US10074245B2
公开(公告)日：2018-09-11
申请号：US15402497
申请日：2017-01-10
申请人： Woodward, Inc.
CPC分类号： G08B6/00 , B64C13/0421 , B64C13/0427 , B64C13/46 , G05G5/03 , G05G9/047 , G05G2009/04766 , H02P6/085 , H02P6/14 , H02P6/17 , H02P21/06 , H02P23/0004
摘要： The subject matter of this specification can be embodied in, among other things, a motion control apparatus that includes a brushless DC motor to actuate a mechanical output based on a collection of phase power signals, a collection of first Hall effect sensors configured to provide a collection of first feedback signals in response to a sensed motor position and a sensed motor speed, a controller configured to determine a speed and position of the motor based on the feedback signals, and determine an electrical current level based on a collection of operational parameters and feedback signals including a position of the mechanical output, the motor speed, and the motor position, a current controller configured to provide electrical phase sequence output signals based on the electrical current level, and a motor driver configured to provide the collection of phase power signals based on the electrical phase sequence output signals.
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124.发明申请公开(公告)号：US20180245527A1
公开(公告)日：2018-08-30
申请号：US15968447
申请日：2018-05-01
申请人： WOODWARD, INC.
CPC分类号： F02D35/023 , F02D41/0025 , F02D41/0027 , F02D41/14 , F02D41/26 , F02D2041/286 , F02D2250/12 , F02D2250/14 , F02P5/152 , Y02T10/36
摘要： A system for controlling an internal combustion engine has an in-cylinder pressure sensor, a crank angle sensor and a controller coupled to receive inputs from the pressure sensor and crank angle sensor. The controller is configured to convert the cylinder pressure input into a combustion metric indicative of the combustion occurring in the measured cylinder and control fuel input and timing into the engine based on the combustion metric. The controller samples the in-cylinder pressure sensor at a high frequency during critical combustion events and at a lower frequency during the non-critical cylinder conditions.
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公开(公告)号：US10054079B2
公开(公告)日：2018-08-21
申请号：US15019733
申请日：2016-02-09
申请人： Woodward, Inc.
摘要： A thrust reverser includes: a thrust-reversing element movable between a stowed position and a deployed position; at least one hydraulic actuator operably coupled to move the thrust-reversing element between the stowed and deployed positions; at least one hydraulic primary lock configured to transition, in response to a first activation pressure, between an engaged state, where movement of the thrust-reversing element is inhibited, and a released state, where movement of the thrust-reversing element is uninhibited; and a directional control unit fluidly coupled to the hydraulic actuator and the hydraulic primary lock, the directional control unit configured to transition from a first stage to a second stage in response to a second activation pressure that is greater than the first activation pressure, and where a transition from the first stage to the second stage by the directional control unit causes the hydraulic actuator to move the thrust-reversing element to the deployed position.
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公开(公告)号：US20180223695A1
公开(公告)日：2018-08-09
申请号：US15424643
申请日：2017-02-03
申请人： Woodward, Inc.
IPC分类号： F01K7/20
CPC分类号： F01K7/20 , F01D17/02 , F01D17/145 , F01K7/04 , F01K13/02 , F02C9/16 , F02C9/28 , F05D2260/80 , F05D2270/05 , F05D2270/20 , F05D2270/3061
摘要： In some aspects, a steam turbine system includes a high-pressure turbine section; a low-pressure turbine section; a high-pressure control valve operable to provide an adjustable flow of steam into the high-pressure turbine section; a low-pressure control valve operable to provide an adjustable flow of steam into the low-pressure turbine section; a controller associated with the high-pressure control valve and the low-pressure control valve. The controller is operable to: receive measurements of three or more different operating points of the steam turbine system, the measurements of each of the three or more different operating points including a position of the high-pressure control valve, a position of the low-pressure control valve, and two of process variables of the steam turbine system; calculate coefficients of a steam performance map of the steam turbine system based on the measurements; and generate the steam performance map based on the coefficients.
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公开(公告)号：US20180209377A1
公开(公告)日：2018-07-26
申请号：US15925435
申请日：2018-03-19
申请人： Woodward, Inc.
摘要： A thrust reverser includes: a thrust-reversing element movable between a stowed position and a deployed position; at least one hydraulic actuator operably coupled to move the thrust-reversing element between the stowed and deployed positions; at least one hydraulic primary lock configured to transition, in response to a first activation pressure, between an engaged state, where movement of the thrust-reversing element is inhibited, and a released state, where movement of the thrust-reversing element is uninhibited; and a directional control unit fluidly coupled to the hydraulic actuator and the hydraulic primary lock, the directional control unit configured to transition from a first stage to a second stage in response to a second activation pressure that is greater than the first activation pressure, and where a transition from the first stage to the second stage by the directional control unit causes the hydraulic actuator to move the thrust-reversing element to the deployed position.
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公开(公告)号：US10030679B2
公开(公告)日：2018-07-24
申请号：US14992845
申请日：2016-01-11
申请人： Woodward, Inc.
摘要： A rotary actuator includes a first housing defining a first arcuate chamber having a first cavity, a first fluid port in fluid communication with the first cavity, and an open end. A rotor assembly is rotatably journaled in the first housing and having a rotary output shaft and a first rotor arm extending radially outward from the rotary output shaft. An arcuate-shaped first piston is disposed in the first housing for reciprocal movement in the first arcuate chamber through the open end, wherein a first seal, the first cavity, and the first piston define a first pressure chamber, and a first portion of the first piston contacts the first rotor arm.
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公开(公告)号：US09893497B2
公开(公告)日：2018-02-13
申请号：US14045625
申请日：2013-10-03
申请人： Woodward, Inc.
CPC分类号： H01T13/54 , F02P13/00 , F02P15/001 , H01T13/467
摘要： In some aspects, a spark plug includes a spark gap in an enclosure of the spark plug. The spark plug includes a passage in the interior of the enclosure. During operation of the engine, the passage directs flow through the spark gap, primarily away from a combustion chamber end of the enclosure. The passage can direct flow at a velocity of 5 meters/second or greater.
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