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1. 发明授权

US07093420B2 Flow divider and ecology valve 失效
标题翻译：流量分配器和生态阀
公开(公告)号：US07093420B2
公开(公告)日：2006-08-22
申请号：US10832674
申请日：2004-04-27
申请人： Paul W. Futa, Jr. , Dennis G. Demers
发明人： Paul W. Futa, Jr. , Dennis G. Demers
IPC分类号： F02C7/228
CPC分类号： F02C7/228 , F02C7/232 , F02C9/26
摘要： A fuel flow dividing ecology valve conveys fuel from a fuel source to at least a secondary gas turbine engine intake manifold during engine operation and withdraws fuel therefrom upon cessation of engine operation. The valve includes a flow dividing valve portion having an inlet coupled to the fuel source and an outlet coupled to the secondary manifold. The valve also includes an ecology valve portion controlled by the fuel pressure differential between the fuel source and the flow restricting inlet. The ecology valve portion includes a housing with a movable piston disposed therein. The piston defines, in conjunction with the housing, a variable volume chamber for withdrawing fuel from the engine intake manifolds. When the engine is de-energized, the piston moves from a first position toward a second position thereby purging the manifolds of fuel.
摘要翻译：燃料分流生态阀在发动机运行期间将燃料从燃料源传递到至少二次燃气涡轮发动机进气歧管，并且在停止发动机操作时从其中提取燃料。阀包括分流阀部分，其具有联接到燃料源的入口和连接到次级歧管的出口。阀还包括由燃料源和流量限制入口之间的燃料压力差控制的生态阀部分。生态阀部分包括其中设置有可移动活塞的壳体。活塞与壳体一起限定了用于从发动机进气歧管中抽出燃料的可变容积室。当发动机断电时，活塞从第一位置向第二位置移动，从而清除燃料歧管。

2. 发明授权

US06751939B2 Flow divider and ecology valve 失效
标题翻译：流量分配器和生态阀
公开(公告)号：US06751939B2
公开(公告)日：2004-06-22
申请号：US10179783
申请日：2002-06-25
申请人： Paul W. Futa, Jr. , Dennis G. Demers
发明人： Paul W. Futa, Jr. , Dennis G. Demers
IPC分类号： F02C7232
CPC分类号： F02C7/228 , F02C7/232 , F02C9/26
摘要： A fuel flow dividing ecology valve conveys fuel from a fuel source to at least a secondary gas turbine engine intake manifold during engine operation and withdraws fuel therefrom upon cessation of engine operation. The valve includes a flow dividing valve portion having an inlet coupled to the fuel source and an outlet coupled to the secondary manifold. The valve also includes an ecology valve portion controlled by the fuel pressure differential between the fuel source and the flow restricting inlet. The ecology valve portion includes a housing with a movable piston disposed therein. The piston defines, in conjunction with the housing, a variable volume chamber for withdrawing fuel from the engine intake manifolds. When the engine is de-energized, the piston moves from a first position toward a second position thereby purging the manifolds of fuel.
摘要翻译：燃料分流生态阀在发动机运行期间将燃料从燃料源传递到至少二次燃气涡轮发动机进气歧管，并且在停止发动机操作时从其中提取燃料。阀包括分流阀部分，其具有联接到燃料源的入口和连接到次级歧管的出口。阀还包括由燃料源和流量限制入口之间的燃料压力差控制的生态阀部分。生态阀部分包括其中设置有可移动活塞的壳体。活塞与壳体一起限定了用于从发动机进气歧管中抽出燃料的可变容积室。当发动机断电时，活塞从第一位置向第二位置移动，从而清除燃料歧管。

3. 发明授权

US06357219B1 Turbine engine fuel control system 失效
标题翻译：涡轮发动机燃油控制系统
公开(公告)号：US06357219B1
公开(公告)日：2002-03-19
申请号：US09398133
申请日：1999-09-17
申请人： John E. Dudd, Jr. , Dennis G. Demers
发明人： John E. Dudd, Jr. , Dennis G. Demers
IPC分类号： F02C726
CPC分类号： F02C9/36 , F02C7/26 , F02C9/28 , F05D2270/112 , F05D2270/3032
摘要： A turbine engine fuel delivery system (10) and method has, in addition to the conventional fuel bypass (20) for diverting fuel exiting a fuel control (17) away from the engine (49) and back to a fuel pump (15) to maintain a relatively constant pressure differential across the fuel control (17), a separate controllable flow fuel bypass (21) for selectively diverting fuel exiting the fuel control (17) away from the engine (49) and back to the fuel pump (15) to decrease the rate of fuel flow to the engine (49) and correct an overtemperature condition, and an arrangement for enabling the controllable fuel flow bypass (21) during engine (49) start-up and disabling the controllable fuel flow bypass (21) when the engine (49) reaches normal idle speed. Once an engine (49) start or light off is detected, the system (10) automatically prevents turbine outlet temperature exceedences by reducing metered fuel flow to the engine nozzle. The controllable fuel bypass (21) includes a solenoid operable valve (29). A controller (45) is responsive to sensed exhaust gas temperature and supplies a pulse width modulated control signal to the solenoid operable valve (29) which cyclically enables and disables the return flow of a portion of the fuel flow to the engine (49) from the main fuel control (17) back to the engine fuel pump (15). The period of cyclic enabling and disabling is fixed and the fraction of each cycle during which enabling occurs is controlled in accordance with the monitored exhaust gas temperature. The fuel bypass (21) includes a particulate matter filter (25, 31), a flow limiting orifice (27), and the solenoid actuatable valve (29), and a check valve (23) connected in series between the fuel control (17) and the fuel pump (15).
摘要翻译：涡轮发动机燃料输送系统（10）和方法除了用于将离开燃料控制器（17）的燃料从发动机（49）转回并返回到燃料泵（15）的常规燃料旁路（20）在燃料控制器（17）之间保持相对恒定的压力差，分离的可控流量燃料旁路（21），用于选择性地将从燃料控制器（17）排出的燃料远离发动机（49）并返回到燃料泵（15）以减少燃料流向发动机（49）的速度并修正过热状况，以及用于在发动机（49）启动期间使可控燃料流量旁路（21）能够启动和禁用可控燃料流量旁路（21）的装置，当发动机（49）达到正常怠速时。一旦检测到发动机（49）启动或熄灭，系统（10）通过减少计量的燃料流向发动机喷嘴来自动防止涡轮机出口温度超过。可控燃料旁路（21）包括电磁可操作阀（29）。控制器（45）响应于检测到的废气温度，并向螺线管可操作的阀（29）供应脉冲宽度调制的控制信号，循环地启用和禁止燃料流向发动机（49）的一部分的回流主燃料控制器（17）回到发动机燃油泵（15）。循环启用和禁用的周期是固定的，并且根据监测的排气温度来控制能够发生启动的每个循环的分数。燃料旁路（21）包括颗粒物质过滤器（25,31），流量限制孔（27）和螺线管致动阀（29），以及止回阀（23），其串联连接在燃料控制器）和燃料泵（15）。

4. 发明授权

US06715278B2 Fail fixed fuel metering device for providing bumpless transfer to backup 失效
标题翻译：故障固定式燃油计量装置，用于提供无震动的转移到备用
公开(公告)号：US06715278B2
公开(公告)日：2004-04-06
申请号：US10171951
申请日：2002-06-14
申请人： Dennis G. Demers
发明人： Dennis G. Demers
IPC分类号： F02C928
CPC分类号： F02C9/46 , F02C9/38
摘要： A fuel metering device (101) and method for metering fuel to an engine (129) provides bumpless transfer to a backup mode. A common cavity (125) provides pressure relief, fuel metering and bypass of fuel flow. A metering valve (120) for scheduling fuel flow to the engine (129) and the metering valve (120) is controlled in either a primary mode or a backup mode. A pressure relief valve (123) limits the maximum pump discharge pressure of a fuel pump. A bypass valve (122) maintains a constant pressure across the metering valve (120) by redirecting non-metered fuel flow back to a pump stage inlet. An electrical clutch (131) determines whether the metering valve (120) function is accomplished by said primary mode or said backup mode. Bumpless transfer to a backup is accomplished automatically.
摘要翻译：用于向发动机（129）计量燃料的燃料计量装置（101）和方法提供无扰动转移到备用模式。公共空腔（125）提供压力释放，燃料计量和旁路燃料流。用于调度燃料流到发动机（129）和计量阀（120）的计量阀（120）被控制在主模式或备用模式。减压阀（123）限制燃油泵的最大泵排出压力。旁通阀（122）通过将非计量燃料流重新定向到泵级入口来保持横跨计量阀（120）的恒定压力。电动离合器（131）通过所述主模式或所述备用模式确定计量阀（120）功能是否完成。自动完成对备份的无损传输。

5. 发明授权

US06282882B1 Turbine engine control system providing electronic power turbine governor and temperature/torque limiting 失效
标题翻译：涡轮发动机控制系统，提供电动涡轮调速器和温度/转矩限制
公开(公告)号：US06282882B1
公开(公告)日：2001-09-04
申请号：US09418053
申请日：1999-10-14
申请人： John E. Dudd, Jr. , Dennis G. Demers
发明人： John E. Dudd, Jr. , Dennis G. Demers
IPC分类号： F02C928
CPC分类号： F02C7/26 , F02C9/28 , F02C9/36 , F05D2270/112 , F05D2270/114 , F05D2270/3032
摘要： A turbine engine (49) fuel delivery system of the type including a pneumatic governor has an electronic governor and an engine excess stress avoidance feature which disable the pneumatic governor (70) so long as the engine speed exceeds a prescribed value and an electronic control unit (45) continues to function properly. The system transfers governing responsibility to the electronic control unit (45) which controls a torque motor and solenoid valve fuel diversion line (22). The system monitors an engine (49) operating parameter such as gas generator speed (37), power turbine speed, engine output torque, or engine temperature and further diminishes fuel flow to the engine (49) when the monitored parameter exceeds a threshold value. The system resumes normal speed governoring flow when that parameter returns to an acceptable level The system also senses rotor blade pitch to reduce rotor droop and increases fuel flow to the engine (49) when the pitch (44) increases, and decreasing the fuel flow to the engine (49) when the rotor blade pitch (44) decreases.
摘要翻译：一种包括气动调速器的涡轮发动机（49）燃料输送系统具有电子调速器和发动机超压应力避免特征，只要发动机转速超过规定值即禁用气动调速器（70），电子控制单元（45）继续正常工作。该系统将控制责任转移到控制扭矩电动机和电磁阀燃料转向管线（22）的电子控制单元（45）。当所监视的参数超过阈值时，系统监视发动机（49）的运行参数，例如气体发生器速度（37），动力涡轮机转速，发动机输出扭矩或发动机温度，并进一步减少到发动机（49）的燃料流量。当该参数返回到可接受的水平时，该系统恢复正常速度调节流量。当间距（44）增加时，系统还感测转子叶片间距以减少转子下垂并增加到发动机（49）的燃料流量，并且将燃料流量减少到当转子叶片间距（44）减小时，发动机（49）。

6. 发明授权

US06955113B2 Electro-hydraulic actuator with mechanical servo position feedback 失效
标题翻译：具有机械伺服位置反馈的电动液压执行机构
公开(公告)号：US06955113B2
公开(公告)日：2005-10-18
申请号：US10289886
申请日：2002-11-07
申请人： Dennis G. Demers
发明人： Dennis G. Demers
IPC分类号： F15B9/12 , F15B9/10
CPC分类号： F15B9/12
摘要： A method and apparatus for an electro-hydraulic actuator (1) having mechanical feedback provide closed loop control with a high degree of accuracy. The electro-hydraulic actuator (1) includes a current versus load generator (10), a single-stage servomechanism (20, 21, 22, 23), and a device (24, 25, 40, 41) for providing a mechanical feedback force for offsetting an input force (Fsol) of the current versus load generator (10).
摘要翻译：具有机械反馈的电动液压致动器（1）的方法和装置以高精度提供闭环控制。电动液压致动器（1）包括电流对负载发生器（10），单级伺服机构（20,21,22,23）和用于提供机械反馈的装置（24,25,40,41）用于抵消电流对负载发生器（10）的输入力（Fsol）的力。

7. 发明授权

US06912837B2 Fail fixed fuel metering device and method for providing bumpless transfer to backup 失效
标题翻译：故障固定式燃油计量装置和方法提供无扰动传输到备用
公开(公告)号：US06912837B2
公开(公告)日：2005-07-05
申请号：US10773359
申请日：2004-02-06
申请人： Dennis G. Demers
发明人： Dennis G. Demers
IPC分类号： F02C9/38 , F02C9/46 , F02C9/28
CPC分类号： F02C9/46 , F02C9/38
摘要： A fuel metering device (101) and method for metering fuel to an engine (129) provides bumpless transfer to a backup mode. A common cavity (125) provides pressure relief, fuel metering and bypass of fuel flow. A metering valve (120) for scheduling fuel flow to the engine (129) and the metering valve (120) is controlled in either a primary mode or a backup mode. A pressure relief valve (123) limits the maximum pump discharge pressure of a fuel pump. A bypass valve (122) maintains a constant pressure across the metering valve (120) by redirecting non-metered fuel flow back to a pump stage inlet. An electrical clutch (131) determines whether the metering valve (120) function is accomplished by said primary mode or said backup mode. Bumpless transfer to a backup is accomplished automatically.
摘要翻译：用于向发动机（129）计量燃料的燃料计量装置（101）和方法提供无扰动转移到备用模式。公共空腔（125）提供压力释放，燃料计量和旁路燃料流。用于调度燃料流到发动机（129）和计量阀（120）的计量阀（120）被控制在主模式或备用模式。减压阀（123）限制燃油泵的最大泵排出压力。旁通阀（122）通过将非计量燃料流重新定向到泵级入口来保持横跨计量阀（120）的恒定压力。电动离合器（131）通过所述主模式或所述备用模式确定计量阀（120）功能是否完成。自动完成对备份的无损传输。

8. 发明授权

US06422023B1 Turbine engine control with electronic and pneumatic governors 失效
标题翻译：涡轮发动机控制与电子和气动调速器
公开(公告)号：US06422023B1
公开(公告)日：2002-07-23
申请号：US09908427
申请日：2001-07-18
申请人： John E. Dudd, Jr. , Dennis G. Demers
发明人： John E. Dudd, Jr. , Dennis G. Demers
IPC分类号： F02C928
CPC分类号： F02C9/28 , F02C7/26 , F02C9/36 , F05D2270/112 , F05D2270/114 , F05D2270/3032
摘要： A turbine engine (49) fuel delivery system of the type including a pneumatic governor has an electronic governor and an engine excess stress avoidance feature which disable the pneumatic governor (70) so long as the engine speed exceeds a prescribed value and an electronic control unit (45) continues to function properly. The system transfers governing responsibility to the electronic control unit (45) which controls a torque motor and solenoid valve fuel diversion line (22). The system monitors an engine (49) operating parameter such as gas generator speed (37), power turbine speed, engine output torque, or engine temperature and further diminishes fuel flow to the engine (49) when the monitored parameter exceeds a threshold value. The system resumes normal speed governoring flow when that parameter returns to an acceptable level. The system also senses rotor blade pitch to reduce rotor droop and increases fuel flow to the engine (49) when the pitch (44) increases, and decreasing the fuel flow to the engine (49) when the rotor blade pitch (44) decreases.
摘要翻译：一种包括气动调速器的涡轮发动机（49）燃料输送系统具有电子调速器和发动机超压应力避免特征，只要发动机转速超过规定值即禁用气动调速器（70），电子控制单元（45）继续正常工作。该系统将控制责任转移到控制扭矩电动机和电磁阀燃料转向管线（22）的电子控制单元（45）。当所监视的参数超过阈值时，系统监视发动机（49）的运行参数，例如气体发生器速度（37），动力涡轮机转速，发动机输出扭矩或发动机温度，并进一步减少到发动机（49）的燃料流量。当该参数返回到可接受的水平时，系统恢复正常速度调节流。当转子叶片间距（44）减小时，当桨距（44）增加时，该系统还感测转子叶片桨距以减少转子下垂并增加到发动机（49）的燃料流量，并且减小到发动机（49）的燃料流量。

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