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公开(公告)号：US10731604B2
公开(公告)日：2020-08-04
申请号：US15221638
申请日：2016-07-28
发明人： Peter J. Cahill, Jr.
IPC分类号： F02K9/38 , F02K9/08 , F02K9/28 , F02K9/12 , C06B25/34 , C06B23/00 , C06B25/30 , C06B45/12 , C06B45/10 , F02K9/10 , F02K9/26 , F02K9/14 , F02K9/18
摘要： A solid rocket motor includes a first solid propellant and a second solid propellant at least partially surrounding the first solid propellant. The second solid propellant is resistant to fragment impact and the first solid propellant has a higher impulse than the second solid propellant.
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公开(公告)号：US10605371B2
公开(公告)日：2020-03-31
申请号：US15548431
申请日：2016-01-26
发明人： Mario Padilla , Gary Grenon
IPC分类号： F16K3/32 , G05D16/10 , F16K11/07 , F16K31/122
摘要： A valve assembly includes a valve body, a first spring seat disposed within the valve body, a preload spring disposed within the valve body and mated with the first spring seat, and a second spring seat disposed within the valve body and mated with the preload spring. The second spring seat is adjustably mated to the valve body.
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公开(公告)号：US10132602B2
公开(公告)日：2018-11-20
申请号：US15125591
申请日：2015-03-19
摘要： A munition includes a composite case, a blast cone housed by the composite case, a grenade aft of the blast cone and housed by the composite case, a first attenuator forward of the blast cone, and a second attenuator aft of the blast cone and forward of the grenade.
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公开(公告)号：US20170246800A1
公开(公告)日：2017-08-31
申请号：US15506447
申请日：2015-09-10
摘要： An additive manufacturing process includes pressurizing and heating a slurry, flowing the pressurized heated slurry through a nozzle, and depositing the slurry in a predetermined pattern.
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公开(公告)号：US20150271955A1
公开(公告)日：2015-09-24
申请号：US14219041
申请日：2014-03-19
发明人： Kevin Mark Noonan
IPC分类号： H05K7/20
CPC分类号： H05K7/20436 , F28F13/00 , F28F2013/006 , F28F2270/00
摘要： A thermal stand-off includes a rigid thermal stand-off section within a spatial region that extends along a distance between a first location and second, opposed location. The rigid thermal stand-off section includes a tortuous solid-wall thermal conduction path that extends from the first location to the second location. The tortuous solid-wall thermal conduction path is longer than the distance of the spatial region. The tortuous solid-wall thermal conduction path can include a tensile spring constant that is greater than a maximum tensile spring constant of a coil spring that fits in the same spatial region and is formed of the same material composition. The tortuous solid-wall thermal conduction path can include an antegrade section and, relative the antegrade section, a retrograde section.
摘要翻译： 热隔离器包括在空间区域内的刚性热平衡部分，其沿第一位置和第二相对位置之间的距离延伸。 刚性热隔离部分包括从第一位置延伸到第二位置的曲折的固体壁导热路径。 曲折的固体壁导热路径长于空间区域的距离。 曲折的固体壁导热路径可以包括大于螺旋弹簧的最大拉伸弹簧常数的拉伸弹簧常数，该弹簧常数适合于相同的空间区域并且由相同的材料组成形成。 弯曲的固体壁导热路径可以包括顺行部分，并且相对于顺行部分包括逆行部分。
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公开(公告)号：US08572945B2
公开(公告)日：2013-11-05
申请号：US12578404
申请日：2009-10-13
IPC分类号： F03H1/00
CPC分类号： F03H1/0018
摘要： To explore deeper expanses of space, rocket ships need rockets that can last twice as long as conventional rockets. Modern rockets use the electric field to attract and accelerate charged particles out and away from the combustion chamber. Space qualified components to increase the electric field are difficult to obtain. Various embodiments of the present subject matter use multiple phases of an input signal into the power supply to cause the output DC voltage signal to be substantially smooth. These smoother signals reduce the voltage requirements of the output diodes and capacitors thereby making them easier to obtain.
摘要翻译： 为了探索更广阔的空间，火箭船需要的火箭可以持续两倍于常规火箭。 现代火箭使用电场吸引和加速带电粒子离开燃烧室。 空间合格的部件增加电场难以获得。 本主题的各种实施例将输入信号的多个相位用于电源以使输出直流电压信号基本上平滑。 这些更平滑的信号降低了输出二极管和电容器的电压要求，从而使它们更容易获得。
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公开(公告)号：US3914348A
公开(公告)日：1975-10-21
申请号：US44551174
申请日：1974-02-25
申请人： AEROJET GENERAL CO
发明人： KORS DAVID L , ADDOMS JOHN F , LAWVER BILLY R
CPC分类号： F02M13/046 , F02M19/10 , F23R3/10 , F23R3/286
摘要： A carburetor for combustion engines having a large number of small venturis to accomplish atomization, varporization and mixing of the fuel with air. The venturis are formed by an assembly or stack of platelets having fine orifices and complex channel shapes defined therein. The fuel can be either aspirated into the venturis by the difference in static pressure between the venturis and the fuel feed source, or it can be injected under pressure. The fine orifices produce droplets significantly smaller than prior art devices, and thus result in more rapid vaporization, finer atomization and better dispersing and mixing of the fuel-air mixture.
摘要翻译： 一种用于内燃机的化油器，其具有大量小型涡轮，以实现燃料与空气的雾化，变化和混合。 通气口由具有精细孔口和限定在其中的复杂通道形状的血小板的组合或堆叠形成。 燃料可以通过文丘里管和燃料供给源之间的静压差来吸入风口，或者可以在压力下注入燃料。 精细的孔产生明显小于现有技术装置的液滴，从而导致更快速的蒸发，更好的雾化和更好的分散和混合燃料 - 空气混合物。
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公开(公告)号：US3914347A
公开(公告)日：1975-10-21
申请号：US38196673
申请日：1973-07-23
申请人： AEROJET GENERAL CO
发明人： KORS DAVID L , LAWVER BILLY R , ADDOMS JOHN F
CPC分类号： F02M13/046 , F02M19/10 , Y10S261/39
摘要： A venturi carburetor for an internal combustion engine which provides more effective fuel atomization, mixing and vaporization to improve performance and minimize undesirable combustion emissions. Gasoline or other liquid fuel is injected into five narrow rectangular venturi diffuser sections in the form of very finely atomized droplets from eight small injection orifices located within the throat of each of the five venturis. The fuel injection assembly includes five rectangular injector plates each of which comprises a bonded assembly of individual platelets having transfer orifices and complex hydraulic flow channels precisely formed therein by photoetching. Together the platelets form a series of fuel delivery passages connecting the fuel supply with the platelet injection orifices in the venturi throat. Idle and main fuel delivery circuits are integrated into the injector assembly and multiple throttle plates are provided so that only one injector and venturi is effective during idle operation.
摘要翻译： 用于内燃机的文丘里化油器，其提供更有效的燃料雾化，混合和蒸发以提高性能并最小化不期望的燃烧排放。 汽油或其他液体燃料以五个狭窄的矩形文丘里管扩散器部分的形式被注入到位于五个肠内的每一个喉部内的八个小注射孔的非常精细的雾化液滴的形式中。 燃料喷射组件包括五个矩形喷射器板，每个喷射板包括具有传输孔的各个血小板的接合组件和通过光刻精确地形成在其中的复杂的液压流动通道。 血小板一起形成一系列燃料输送通道，其将燃料供应与文丘里喉部中的血小板注入孔连接。 空转和主燃料输送回路集成到喷射器组件中，并且设置多个节流板，使得在空转操作期间只有一个喷射器和文丘里管是有效的。
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公开(公告)号：US3906719A
公开(公告)日：1975-09-23
申请号：US76436968
申请日：1968-08-19
申请人： AEROJET GENERAL CO
摘要： A rocket according to the present disclosure has a primary combustion chamber and a primary nozzle for producing thrust. A secondary chamber and a movable secondary nozzle are provided, and an air inlet provides communication to the secondary chamber. In one position of the nozzle, the secondary nozzle closes the air inlet, and the primary combustion chamber and primary nozzle provide maximum thrust for launch or boost purposes. In a second position of the secondary nozzle, the air inlet is open to admit air into the secondary chamber where it mixes with exhaust gas from the primary combustion chamber and burns any unburned fuel in the exhaust to provide acceleration with minimum fuel expenditure at supersonic velocities. In a third position of the secondary nozzle, the nozzle is moved rearward and the fueloxidizer ratio to the primary combustion chamber is adjusted so that the exhaust gas discharged through the primary nozzle contains a high percentage of fuel. The fuel is burned in the secondary chamber with air admitted through the air inlet to sustain supersonic cruising velocities.
摘要翻译： 根据本公开的火箭具有主燃烧室和用于产生推力的主喷嘴。 设置有二级室和可移动的次级喷嘴，并且空气入口与第二室连通。 在喷嘴的一个位置中，次级喷嘴关闭空气入口，并且主燃烧室和主喷嘴为发射或升压目的提供最大推力。 在次级喷嘴的第二位置，空气入口打开以允许空气进入次级室，在那里它与来自主燃烧室的废气混合，并且燃烧排气中的任何未燃烧的燃料以提供超音速的最小燃料消耗的加速度 。 在第二喷嘴的第三位置，喷嘴向后移动，并且调节与主燃烧室的燃料 - 氧化剂比例，使得通过主喷嘴排出的废气含有高百分比的燃料。 燃料在次级室中燃烧，空气通过进气口进入，以维持超音速巡航速度。
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公开(公告)号：US3906315A
公开(公告)日：1975-09-16
申请号：US43346074
申请日：1974-01-15
申请人： AEROJET GENERAL CO
发明人： GOTISAR THEODORE H
摘要： An induction motor deceleration control circuit capable of activating apparatus peripheral to the induction motor when the motor output shaft is at a predetermined speed and position, and then stopping the output shaft precisely at a predetermined position, all in a rapid one-step operation, is illustrated herein. The control circuit includes apparatus for providing an AC drive signal to the induction motor, a control for reducing the frequency of that AC drive signal in order to reduce the operating speed of the motor, a feedback loop for identifying the speed and position of the motor output shaft, and a brake control responsive to the feedback loop for converting the AC drive signal to a DC braking signal when the motor shaft slows to a predetermined speed and reaches a predetermined position. The controlled application of a braking signal in accordance with motor output shaft speed and position ensures that the shaft will only rotate through a known angle after application of the braking force and thus stop precisely at a predetermined distance. The control circuit also includes apparatus responsive to the feedback circuit for activating apparatus peripheral to the induction motor just before the induction motor is stopped, when the motor output shaft has a predetermined speed and position.
摘要翻译： 一种感应电动机减速控制电路，其能够在电动机输出轴处于预定的速度和位置时使感应电动机周围的设备启动，然后在快速一步操作中将输出轴精确地停在预定位置， 如图所示。 控制电路包括用于向感应电动机提供AC驱动信号的装置，用于降低该AC驱动信号的频率以降低电动机的操作速度的控制，用于识别电动机的速度和位置的反馈回路 输出轴，以及响应于反馈回路的制动控制，用于当电机轴减速到预定速度并到达预定位置时将AC驱动信号转换成直流制动信号。 根据电机输出轴速度和位置控制制动信号的应用确保了轴在施加制动力之后将仅旋转已知的角度，并因此精确地停止在预定距离。 控制电路还包括响应于反馈电路的装置，用于在马达输出轴具有预定的速度和位置之前，在感应电动机停止之前激励感应电动机周边的设备。
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