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公开(公告)号：US08590310B2
公开(公告)日：2013-11-26
申请号：US13431187
申请日：2012-03-27
申请人： Kevin Gibbons , Gerald P. Dyer
发明人： Kevin Gibbons , Gerald P. Dyer
IPC分类号： F02C1/00
摘要： A method and system for providing fuel to primary and secondary fuel nozzles in a gas turbine engine fuel system comprises generating a fuel flow and routing primary fuel from the fuel flow to a primary fuel nozzle. Backpressure on the fuel flow is maintained using a valve. The valve is opened at increased fuel flow to route secondary fuel from the fuel flow to a secondary fuel nozzle. The valve is progressively opened under increasing fuel flows to reduce a pressure drop across the valve produced by the secondary fuel.
摘要翻译： 一种用于向燃气涡轮发动机燃料系统中的主要和次要燃料喷嘴提供燃料的方法和系统包括产生燃料流并且将一次燃料从燃料流引导到主燃料喷嘴。 使用阀门保持燃油流量的背压。 阀门以增加的燃料流量打开以将二次燃料从燃料流引导到二次燃料喷嘴。 在增加的燃料流量下逐渐打开阀门，以减少由二次燃料产生的阀门上的压降。
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公开(公告)号：US06666015B2
公开(公告)日：2003-12-23
申请号：US10058510
申请日：2002-01-28
申请人： Gerald P. Dyer
发明人： Gerald P. Dyer
IPC分类号： F02C900
CPC分类号： F02C9/263 , F02C9/28 , F02C9/38 , F04B49/03 , F05D2270/301
摘要： A fuel flow control system to control fuel by regulating fuel pressure includes an inlet, an outlet, and a bypass passage. A variable orifice valve controls the flow of fuel between the inlet and the outlet in conjunction with a fixed orifice of an engine such that the relationship between pressure and fuel flow is substantially linear. A pressure-regulating valve accommodates pressure fluctuations in the system. A dual torque motor opens in proportion to the level of applied electrical current to control fuel pressure and thereby fuel flow.
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23.发明授权公开(公告)号：US06250894B1
公开(公告)日：2001-06-26
申请号：US09287829
申请日：1999-04-07
申请人： Gerald P. Dyer , Charles E. Reuter
发明人： Gerald P. Dyer , Charles E. Reuter
IPC分类号： F04B4900
CPC分类号： F02C7/236 , F04D13/14 , F04D15/0005 , F04D15/0072 , Y10T137/2572
摘要： A system allows pumps to run in parallel and preventing back flow through a non-operational pump. The system includes a first pump in parallel with a second pump. The system further includes a check valve in fluid communication with the first pump for preventing flow through the first pump when the first pump is not operating. The system further includes a sensing valve in fluid communication with the first pump and the second pump. The system also includes a load sharing valve in fluid communication with the check valve, the sensing valve, and the second pump for controlling a system flow, wherein the system flow is provided by the first pump when the second pump is not operating, and wherein the system flow is provided by the second pump when the first pump is not operating, and wherein the system flow includes a portion of flow from both the first and second pumps when both pumps are operational.
摘要翻译： 一个系统允许泵并联运行，并防止通过非操作泵的回流。 该系统包括与第二泵并联的第一泵。 该系统还包括与第一泵流体连通的止回阀，用于当第一泵不工作时防止流过第一泵。 该系统还包括与第一泵和第二泵流体连通的传感阀。 该系统还包括与止回阀，感测阀和用于控制系统流量的第二泵流体连通的负载共享阀，其中当第二泵不工作时，系统流由第一泵提供，并且其中 当第一泵不运行时，系统流由第二泵提供，并且其中当两个泵都可操作时，系统流包括来自第一和第二泵的一部分流。
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公开(公告)号：US06250067B1
公开(公告)日：2001-06-26
申请号：US09237848
申请日：1999-01-27
申请人： Gerald P. Dyer , Mark R. Tardif , David L. Chapski
发明人： Gerald P. Dyer , Mark R. Tardif , David L. Chapski
IPC分类号： F02C926
摘要： According to the present invention, a fuel control has an electronic primary control for scheduling a flow of fuel to an engine in a primary mode and hydromechanical secondary control for scheduling the flow of fuel to the engine in a backup mode. The fuel control also has a tracking piston and link whose position is responsive to the HMU during the operation of the electronic primary control. The tracking piston and link effectively changes the power lever angle sensed by the HMU so that in the event of a transfer of control from the electronic primary control to the HMU, changes in the scheduled fuel flow to the engine are minimized.
摘要翻译： 根据本发明，燃料控制具有用于调度主模式的发动机的燃料流的电子主控制和用于在备用模式下调度到发动机的燃料流的液压机械二次控制。 燃料控制还具有跟踪活塞和连杆，其位置在电子主控制的操作期间响应于HMU。 跟踪活塞和连杆有效地改变由HMU感测到的动力杆角度，使得在将控制从电子主控制传递到HMU的情况下，到发动机的调度燃料流量的变化被最小化。
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公开(公告)号：US5551478A
公开(公告)日：1996-09-03
申请号：US327026
申请日：1994-10-21
IPC分类号： F02C9/28 , F15B21/02 , F15B21/08 , G05B19/414 , F15B13/07
CPC分类号： F15B21/08 , G05B19/4144 , G05B2219/34238 , Y10T137/87201 , Y10T137/87209
摘要： A hydraulic control system for a jet aircraft engine has an electronic control that commands a pair of torque motors to ultimately control the position of each one of a plurality of two-position, "latching" hydraulic actuator valves. A first torque motor is operable with a three-position, on/off hydraulic valve. The second torque motor operates in conjunction with a second valve to control the linear position of the spool of a multiplexer selector valve. The multiplexer selector valve has a plurality of positions that the spool can be linear translatable to. At each position is located a pair of control ports to which are ultimately connected one side of each of a pair of corresponding hydraulic actuator valves. The actuator valves may comprise fuel or air valves. A selected fuel or air actuator valve is translated between one of its two positions by translating the spool of the multiplexer selector valve to the appropriate position and then porting high pressure hydraulic fluid to that actuator valve for a predetermined period of time. The control system can asynchronously chose any fuel or air actuator valve to translate, as necessary, at any point in time.
摘要翻译： 用于喷气式飞机发动机的液压控制系统具有电子控制器，其命令一对扭矩电动机最终控制多个两位置“锁定”液压致动器阀中的每一个的位置。 第一扭矩电动机可与三位置的开/关液压阀一起操作。 第二扭矩马达与第二阀一起操作以控制多路转换器选择阀的线轴的线性位置。 多路复用器选择阀具有多个位置，该线轴可以被直线地平移。 在每个位置处设置有一对控制端口，最终连接到一对相应的液压致动器阀的每一个的一侧。 致动器阀可以包括燃料或空气阀。 所选择的燃料或空气致动器阀通过将多路复用器选择阀的阀芯平移到合适的位置，然后将高压液压流体移动到该致动器阀门一段预定的时间段而在其两个位置中的一个之间平移。 控制系统可以根据需要在任何时间点异步地选择任何燃料或空气致动器阀来翻译。
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公开(公告)号：US5442922A
公开(公告)日：1995-08-22
申请号：US165097
申请日：1993-12-09
CPC分类号： F02C9/34 , F02C7/228 , F02C7/232 , F15B13/0438 , F23R3/28
摘要： In a fuel staging system, metered fuel from a fuel metering unit is directed into a fuel inlet line coupled to a sequence valve. A minimum pressure valve maintains the pressure of the fuel flowing through the fuel inlet line at a minimum pressure above the low pressure of the system in order to ensure sufficient force margins to stroke the sequence valve. A main fuel manifold is coupled downstream of the sequence valve, and a plurality of main fuel nozzles are each coupled to the main fuel manifold through a respective main nozzle shut-off valve. A first set of pilot nozzles is coupled to the main fuel manifold through the sequence valve, and a second set of pilot nozzles is coupled to the main fuel manifold through the sequence valve. At low engine speeds, in the first and/or second pilot open positions, fuel flows to either pilot nozzle through the main fuel manifold, and the main fuel nozzles are isolated from the main fuel manifold by the main nozzle shut-off valves. Then, at higher engine speeds, the main nozzle shut-off valves are opened, and the sequence valve splits the fuel flow from the fuel inlet line between the main fuel manifold and the first and second pilot nozzles. The fuel in the main fuel manifold flows to the main fuel nozzles, and the remainder of the fuel split off by the sequence valve flows to the first and second pilot nozzles.
摘要翻译： 在燃料分级系统中，来自燃料计量单元的计量燃料被引导到连接到顺序阀的燃料入口管线。 最小压力阀将燃料流经燃料入口管的压力保持在高于系统的低压的最小压力上，以确保有足够的力余量来冲洗顺序阀。 主燃料歧管联接在顺序阀的下游，并且多个主燃料喷嘴各自通过相应的主喷嘴截止阀联接到主燃料歧管。 第一组先导喷嘴通过顺序阀联接到主燃料歧管，并且第二组先导喷嘴通过顺序阀联接到主燃料歧管。 在低发动机转速下，在第一和/或第二导向开启位置，燃料通过主燃料歧管流到导向喷嘴，并且主燃料喷嘴通过主喷嘴截止阀与主燃料歧管隔离。 然后，在较高的发动机转速下，主喷嘴截止阀打开，并且顺序阀将燃料流从主燃料歧管与第一和第二先导喷嘴之间的燃料入口管分开。 主燃料歧管中的燃料流到主燃料喷嘴，并且由顺序阀分离的燃料的剩余部分流到第一和第二引燃喷嘴。
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公开(公告)号：US5156332A
公开(公告)日：1992-10-20
申请号：US764757
申请日：1991-09-24
申请人： Gerald P. Dyer
发明人： Gerald P. Dyer
CPC分类号： G05D7/0126 , Y10T137/7737
摘要： A pressure regulating flow control apparatus comprises a flow metering valve (10) for controllably discharging a fluid from a spring-biased throttling spool (30) thereof to a fluidic device at a regulated pressure and a pressure modulting valve (100) operatively associated with the throttling spool (30) of the flow metering valve (10) for modulating the fluid pressue in subchamber (18) of the metering valve (10) to alter the position of the throttling spool to adjust the regulated pressure in response to fluid temperature over a relatively large temperature range so as to compensate for the variation of fluid viscosity with fluid temperature.
摘要翻译： 压力调节流量控制装置包括流量计量阀（10），用于将流体从弹簧偏压的节流阀芯（30）可控地排出到调节压力下的流体装置和与压力调节阀（100）可操作地相关联的压力调节阀 流量计量阀（10）的节流阀芯（30），用于调节计量阀（10）的子室（18）中的流体压力，以改变节流阀芯的位置，以响应于流体温度 相对较大的温度范围，以补偿流体粘度随流体温度的变化。
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公开(公告)号：US4876880A
公开(公告)日：1989-10-31
申请号：US262392
申请日：1988-10-25
申请人： Gerald P. Dyer
发明人： Gerald P. Dyer
摘要： A densimeter is provided having a pump which impels a liquid at a constant volume through a fixed orifice. A pressure transducer measures the pressure drop of liquid across the orifice and sends a signal to a microprocessor. A microprocessor determines the density of the liquid which is equal to the pressure drop divided by a constant times the square of a volumetric flow impelled by the pump.
摘要翻译： 提供一种密度计，其具有通过固定孔推动液体恒定体积的泵。 压力传感器测量液体穿过孔口的压降，并将信号发送到微处理器。 微处理器确定液体的密度等于压降除以由泵驱动的体积流量的平方的常数乘以。
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公开(公告)号：US4809499A
公开(公告)日：1989-03-07
申请号：US51887
申请日：1987-05-20
申请人： Gerald P. Dyer
发明人： Gerald P. Dyer
摘要： A densimeter is provided having a pump which impels a liquid at a constant volume through a fixed orifice. A pressure transducer measures the pressure drop of liquid across the orifice and sends a signal to a microprocessor. A microprocessor determines the density of the liquid which is equal to the pressure drop divided by a constant times the square of a volumetric flow impelled by the pump.
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