公开(公告)号：US07762078B2

公开(公告)日：2010-07-27

申请号：US11531630

申请日：2006-09-13

申请人： Michael D. Lynch ,  Dustin C. Barr

发明人： Michael D. Lynch ,  Dustin C. Barr

IPC分类号： F02K1/00

CPC分类号： F02K9/97 ,  F02K9/86 ,  F02K9/978 ,  F05D2250/70 ,  F05D2250/71 ,  F05D2300/505

摘要： Nozzles that offer shape variability to maintain or purposely change the pressure drop across the throat are obtained by constructing the nozzles with components that change their shape, angle, or curvature in response to temperature changes that occur during the flow of combustion products through the nozzle. The temperature change may be the gradual heating of the nozzle wall from hot combustion gases, and the shape change may result in a decrease in the throat diameter or an expansion of the throat diameter. A decrease in throat diameter will be useful when the depletion of propellant as burning proceeds causes a drop in the pressure or flow rate of the combustion gas and there is a need to compensate for this drop to maintain the pressure drop across the throat. An increase in throat diameter will be useful when an initial high thrust is no longer needed and depletion of the fuel by itself is insufficient to lower the thrust to its desired reduced level. An example of a temperature-responsive material is a shape memory alloy; other examples are presented as well.

摘要翻译： 提供形状可变性以保持或有意地改变喉部上的压降的喷嘴是通过根据在通过喷嘴的燃烧产物流动期间发生的温度变化来构造具有改变其形状，角度或曲率的部件的喷嘴而获得的。 温度变化可能是来自热燃烧气体的喷嘴壁的逐渐加热，并且形状变化可能导致喉部直径的减小或喉部直径的膨胀。 喉咙直径的减小将是有用的，当作为燃烧进行的推进剂的消耗导致燃烧气体的压力或流速的下降，并且需要补偿该下降以维持喉部上的压降。 当不再需要初始高推力并且燃料本身的耗尽不足以将推力降低到其期望的减小水平时，喉管直径的增加将是有用的。 温度响应材料的一个例子是形状记忆合金; 还提供了其他示例。

公开(公告)号：US20090173077A1

公开(公告)日：2009-07-09

申请号：US11531630

申请日：2006-09-13

申请人： Michael D. Lynch ,  Dustin C. Barr

发明人： Michael D. Lynch ,  Dustin C. Barr

IPC分类号： F02K1/10

CPC分类号： F02K9/97 ,  F02K9/86 ,  F02K9/978 ,  F05D2250/70 ,  F05D2250/71 ,  F05D2300/505

摘要： Nozzles that offer shape variability to maintain or purposely change the pressure drop across the throat are obtained by constructing the nozzles with components that change their shape, angle, or curvature in response to temperature changes that occur during the flow of combustion products through the nozzle. The temperature change may be the gradual heating of the nozzle wall from hot combustion gases, and the shape change may result in a decrease in the throat diameter or an expansion of the throat diameter. A decrease in throat diameter will be useful when the depletion of propellant as burning proceeds causes a drop in the pressure or flow rate of the combustion gas and there is a need to compensate for this drop to maintain the pressure drop across the throat. An increase in throat diameter will be useful when an initial high thrust is no longer needed and depletion of the fuel by itself is insufficient to lower the thrust to its desired reduced level. An example of a temperature-responsive material is a shape memory alloy; other examples are presented as well.

摘要翻译： 提供形状可变性以保持或有意地改变喉部上的压降的喷嘴是通过根据在通过喷嘴的燃烧产物流动期间发生的温度变化来构造具有改变其形状，角度或曲率的部件的喷嘴而获得的。 温度变化可能是来自热燃烧气体的喷嘴壁的逐渐加热，并且形状变化可能导致喉部直径的减小或喉部直径的膨胀。 喉咙直径的减小将是有用的，当作为燃烧进行的推进剂的消耗导致燃烧气体的压力或流速的下降，并且需要补偿该下降以维持喉部上的压降。 当不再需要初始高推力并且燃料本身的耗尽不足以将推力降低到其期望的减小水平时，喉管直径的增加将是有用的。 温度响应材料的一个例子是形状记忆合金; 还提供了其他示例。

公开(公告)号：US08016211B2

公开(公告)日：2011-09-13

申请号：US12041810

申请日：2008-03-04

申请人： Dustin C. Barr ,  Michael D. Lynch

发明人： Dustin C. Barr ,  Michael D. Lynch

IPC分类号： B63H11/10

CPC分类号： F02K9/86 ,  F01D17/141 ,  F02K9/97 ,  F05D2250/41 ,  F05D2250/411 ,  F05D2260/96

摘要： A propulsion system with a divergent-convergent nozzle is provided with variable thrust by a pintle whose position relative to the nozzle throat is controlled by an actuator that includes a rotor that external to, and encircling, the nozzle, and that is coupled to either the pintle or to the nozzle shell by a linkage that translates the rotary movement of the rotor into linear movement of either the pintle or the shell.

摘要翻译： 具有发散会聚喷嘴的推进系统由枢轴提供可变的推力，枢轴相对于喷嘴喉部的位置由致动器控制，该致动器包括在喷嘴外部和环绕喷嘴的转子，并且其连接到 枢轴或通过将转子的旋转运动转换为枢轴或壳体的线性运动的联动件连接到喷嘴壳体。

公开(公告)号：US20090230212A1

公开(公告)日：2009-09-17

申请号：US12041810

申请日：2008-03-04

申请人： Dustin C. Barr ,  Michael D. Lynch

发明人： Dustin C. Barr ,  Michael D. Lynch

IPC分类号： F02K1/00

CPC分类号： F02K9/86 ,  F01D17/141 ,  F02K9/97 ,  F05D2250/41 ,  F05D2250/411 ,  F05D2260/96

摘要： A propulsion system with a divergent-convergent nozzle is provided with variable thrust by a pintle whose position relative to the nozzle throat is controlled by an actuator that includes a rotor that external to, and encircling, the nozzle, and that is coupled to either the pintle or to the nozzle shell by a linkage that translates the rotary movement of the rotor into linear movement of either the pintle or the shell.

摘要翻译： 具有发散会聚喷嘴的推进系统由枢轴提供可变的推力，枢轴相对于喷嘴喉部的位置由致动器控制，该致动器包括在喷嘴外部和环绕喷嘴的转子，并且其连接到 枢轴或通过将转子的旋转运动转换为枢轴或壳体的线性运动的联动件连接到喷嘴壳体。