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1. 发明授权

US06425553B1 Piezoelectric actuators for circulation controlled rotorcraft 有权
标题翻译：用于循环控制的旋翼航空器的压电致动器
公开(公告)号：US06425553B1
公开(公告)日：2002-07-30
申请号：US09641699
申请日：2000-08-18
申请人： James E. Smith , John L. Loth , Robert P. M. Craven , Robert Bond
发明人： James E. Smith , John L. Loth , Robert P. M. Craven , Robert Bond
IPC分类号： B64C138
CPC分类号： B64C27/001 , B64C21/04 , B64C2027/7283 , B64C2230/04 , B64C2230/06 , B64C2230/16 , B64C2230/28 , Y02T50/166 , Y02T50/34 , Y02T50/66
摘要： A dynamic fluid control surface, e.g., a rotor blade of a helicopter, having a blowing slot extending the entire length of the leading and trailing edges of the dynamic fluid control surface, an internal chamber containing a pressurized fluid, e.g., air, and one or more piezoelectric actuators positioned along the length of the blowing slots and connected to the internal chamber. The piezoelectric actuators are controlled by a computer system to regulate the flow of fluid released through the blowing slot. There may be one or more blowing slots on either just the trailing edge of a dynamic fluid control surface or on both the leading edge and the trailing edge of the dynamic fluid control surface.
摘要翻译：动态流体控制表面，例如直升机的转子叶片，其具有延伸动态流体控制表面的前缘和后缘的整个长度的吹风槽，包含加压流体（例如空气）和一个或更多的压电致动器，其沿着吹风槽的长度定位并连接到内部室。压电致动器由计算机系统控制，以调节通过吹风槽释放的流体的流动。在动态流体控制表面的后缘上或在动态流体控制表面的前缘和后缘上都可以有一个或多个吹气槽。

2. 发明授权

US4341530A Slurry atomizer for a coal-feeder and dryer used to provide coal at gasifier pressure 失效
标题翻译：用于供气和干燥器的浆料雾化器用于在气化器压力下提供煤
公开(公告)号：US4341530A
公开(公告)日：1982-07-27
申请号：US276610
申请日：1981-06-23
申请人： John L. Loth , William C. Smith , Gary R. Friggens
发明人： John L. Loth , William C. Smith , Gary R. Friggens
IPC分类号： C10J3/50
CPC分类号： C10J3/50 , C10J3/00 , C10J3/30 , C10J2300/0909 , C10J2300/093 , C10J2300/0976 , Y10S48/07
摘要： The present invention is directed to a coal-water slurry atomizer for use a high-pressure dryer employed in a pumping system utilized to feed coal into a pressurized coal gasifier. The slurry atomizer is provided with a venturi, constant area slurry injection conduit, and a plurality of tangentially disposed steam injection ports. Superheated steam is injected into the atomizer through these ports to provide a vortical flow of the steam, which, in turn, shears slurry emerging from the slurry injection conduit. The droplets of slurry are rapidly dispersed in the dryer through the venturi where the water is vaporized from the slurry by the steam prior to deleterious heating of the coal.
摘要翻译：本发明涉及一种用于在用于将煤送入加压煤气化器的泵送系统中使用的高压干燥器中的水煤浆雾化器。浆料雾化器设置有文氏管，恒定面积的浆料注入管道和多个切向设置的蒸汽注入口。过热蒸汽通过这些端口喷射到雾化器中，以提供蒸汽的涡旋流，这反过来又剪切从浆料注入管道出来的浆料。浆料的液滴通过文丘里管快速分散在干燥器中，在煤的有害加热之前，水通过蒸汽从浆液中蒸发。

3. 发明授权

US07563322B2 Method and apparatus for online flow control over the span of a high aspect ratio slot jet 有权
标题翻译：用于在高宽比槽口射流的跨度上进行在线流量控制的方法和装置
公开(公告)号：US07563322B2
公开(公告)日：2009-07-21
申请号：US11784645
申请日：2007-04-09
申请人： John L. Loth
发明人： John L. Loth
IPC分类号： B05C13/00
CPC分类号： B05C11/06 , C23C2/14 , C23C2/20
摘要： A method and apparatus for controlling local flow along a slot jet with applications to airknives is disclosed. The airknife provides improved options for on-line control over coating thickness and edge build-up prevention. The gap of the slot nozzle of the airknife can remain constant while the outflow pattern is controlled by a series of preset throttle valves in combination with a single moving component, the multi-port aero-valve. This valve can be actuated locally or remotely, in rotation or translation, thereby changing gradually from a conventional uniform outflow to one which increases in velocity and mass flow rate along the airknife span to produce a bow effect. The valve can also change gradually from a conventional uniform outflow to one which increases in velocity, mass flow rate and outflow angle along the span to simulate bow effect in combination with fan-like outflow.
摘要翻译：公开了一种用于控制沿着空气喷枪应用的狭缝射流的局部流动的方法和装置。该刀具提供了改进的选项，用于在线控制涂层厚度和防止边缘积聚。空气刀的缝隙喷嘴的间隙可以保持恒定，而流出模式由一系列预设的节流阀与单个运动部件（多端口气动阀）组合来控制。该阀可以局部地或远程地被驱动旋转或平移，从而从常规的均匀流出逐渐变化到沿着气刀跨度增加速度和质量流量以产生弓形效应的阀。阀门也可以从传统的均匀流出逐渐变化到沿着跨度增加速度，质量流量和流出角的模拟弓形效应以及扇形流出的结果。

4. 发明授权

US4154220A Flat-plate solar collector with air flowing through the grooves in a foam absorber surface 失效
标题翻译：平板式太阳能集热器，空气流过泡沫吸收体表面的凹槽
公开(公告)号：US4154220A
公开(公告)日：1979-05-15
申请号：US779365
申请日：1977-03-21
申请人： John L. Loth
发明人： John L. Loth
IPC分类号： F24J2/04 , F24J2/22 , F24J3/02
CPC分类号： F24J2/0488 , F24J2/22 , F24J2002/003 , F24J2002/4603 , Y02E10/44 , Y10S126/908
摘要： This invention relates to a more cost effective construction of an air type flat-plate solar collector. More particularly the invention has reference to replacing the usual combination of insulation backing and a good thermally conducting metal black absorber surface by a single, specially grooved and blackened, foam insulation type absorber surface. The airstream flows mainly inside the grooves to minimize its contact with the transparent cover. This new configuration saves weight, materials and cost, and shows little or no loss in performance during steady state efficiency tests. Due to the low thermal capacity of the foam absorber surface the collector warms up very quickly and often the internal thermal switch will actuate the fan motor within five minutes after exposure to solar radiation. This low time lag allows it to collect more heat during a day with intermittent sunshine than a collector with identical efficiency but with a metal absorber of greater thermal capacity which takes longer to warm up.
摘要翻译：本发明涉及空气型平板太阳能集热器的更具成本效益的结构。更具体地，本发明涉及通过单个特别是凹槽和黑化的泡沫绝缘型吸收体表面代替绝缘背衬和良好导热金属黑色吸收体表面的通常组合。气流主要在凹槽内流动，以使其与透明盖的接触最小化。这种新型配置节省了重量，材料和成本，并且在稳态效率测试中表现出很少或没有损失。由于泡沫吸收体表面的热容量低，收集器非常快速地变暖，并且通常内部热开关将在暴露于太阳辐射后五分钟内致动风扇马达。这个低的时间滞后允许它在一天内间歇性阳光下收集比具有相同效率的收集器更多的热量，但是具有较高热容量的金属吸收器，其需要更长的时间来预热。

5. 发明授权

US4105363A Overspeed control arrangement for vertical axis wind turbines 失效
标题翻译：垂直轴风力发电机的超速控制装置
公开(公告)号：US4105363A
公开(公告)日：1978-08-08
申请号：US696116
申请日：1976-06-14
申请人： John L. Loth
发明人： John L. Loth
IPC分类号： F03D3/06 , F03D7/06
CPC分类号： F03D3/061 , F03D7/06 , F05B2240/214 , Y02E10/74
摘要： This invention is an overspeed control arrangement for vertical axis wind turbines employing normally vertically positioned rotor blades, said control arrangement allows the rotor blades to tilt either forward or backwards to form a swept wing configuration, at wind turbine speeds beyond the design rpm. When the rotor blade is in a highly swept wing configuration its high drag and low lift reduces the turbine rotor torque to zero and eliminates excessive overspeeding and structural damage. The rotor blade can tilt about a radial or nearly so, tilt-support arm, mounted on a concentric bearing, the tilting starts at the feathering design rpm which is controlled by the geometric position of the combined center of gravity of both rotor blade and tilt-support arm. The control arrangement is automatic and passive and does not require the use of springs, pulleys or levers.
摘要翻译：本发明是一种采用通常垂直定位的转子叶片的垂直轴风力涡轮机的超速控制装置，所述控制装置允许转子叶片向前或向后倾斜以形成风力涡轮机速度超过设计转速的扫掠机翼结构。当转子叶片处于高度扫掠的机翼构型时，其高阻力和低升力将涡轮转子转矩降低到零，并消除了过度的超速和结构损坏。转子叶片可以围绕安装在同心轴承上的径向或几乎倾斜的支撑臂倾斜，倾斜开始于以由转子叶片和倾斜的组合重心的几何位置控制的羽化设计rpm 支撑臂。控制装置是自动和被动的，不需要使用弹簧，滑轮或杠杆。

6. 发明申请

US20080245903A1 Method and apparatus for online flow control over the span of a high aspect ratio slot jet 有权
标题翻译：用于在高宽比槽口射流的跨度上进行在线流量控制的方法和装置
公开(公告)号：US20080245903A1
公开(公告)日：2008-10-09
申请号：US11784645
申请日：2007-04-09
申请人： John L. Loth
发明人： John L. Loth
IPC分类号： B05B1/14
CPC分类号： B05C11/06 , C23C2/14 , C23C2/20
摘要： A method and apparatus for controlling local flow along a slot jet with applications to airknives is disclosed. The airknife provides improved options for on-line control over coating thickness and edge build-up prevention. The gap of the slot nozzle of the airknife can remain constant while the outflow pattern is controlled by a series of preset throttle valves in combination with a single moving component, the multi-port aero-valve. This valve can be actuated locally or remotely, in rotation or translation, thereby changing gradually from a conventional uniform outflow to one which increases in velocity and mass flow rate along the airknife span to produce a bow effect. The valve can also change gradually from a conventional uniform outflow to one which increases in velocity, mass flow rate and outflow angle along the span to simulate bow effect in combination with fan-like outflow.
摘要翻译：公开了一种用于控制沿着空气喷枪应用的狭缝射流的局部流动的方法和装置。该刀具提供了改进的选项，用于在线控制涂层厚度和防止边缘积聚。空气刀的缝隙喷嘴的间隙可以保持恒定，而流出模式由一系列预设的节流阀与单个运动部件（多端口气动阀）组合来控制。该阀可以局部地或远程地被驱动旋转或平移，从而从常规的均匀流出逐渐变化到沿着气刀跨度增加速度和质量流量以产生弓形效应的阀。阀门也可以从传统的均匀流出逐渐变化到沿着跨度增加速度，质量流量和流出角的模拟弓形效应以及扇形流出的结果。

7. 发明授权

US07040482B2 Bearing life extender for conveyor type rollers 失效
标题翻译：输送机类滚轮轴承寿命延长器
公开(公告)号：US07040482B2
公开(公告)日：2006-05-09
申请号：US10695551
申请日：2003-10-28
申请人： John L. Loth
发明人： John L. Loth
IPC分类号： B65G13/02
CPC分类号： C23C2/003 , F16C13/02 , F27D3/026
摘要： Rollers used on conveyors and inside the zinc-pot of a steel-sheet galvanizing line are usually driven by friction between the roller and the belt or sheet. Such rollers operating in high temperature furnaces or in a hot zinc pot of a steel galvanizing line often have limited or no lubrication The invention herein utilizes bearings which are smaller in diameter and longer than conventional bearing system used in rollers, without an increase in shaft bending moment. This is made possible by changing from a rotating cantilevered shaft to a stationary shaft strengthened to be substantially non-deflecting on either side of the bearings. Such a stationary shaft can be smaller in diameter to reduce bearing friction torque. In addition such a shaft can have increased bearing contact area and assure bearing alignment, all of which contribute to increased bearing life. A device is provided for increasing the buoyancy of a submerged roller.
摘要翻译：用于输送机的滚筒和钢板镀锌线的锌锅内部的辊通常由辊和带或片之间的摩擦驱动。这种在高温炉或钢镀锌线的热锌锅中操作的辊通常具有有限的或没有润滑的润滑。本发明使用直径更小并且长于辊中使用的常规轴承系统的轴承，而不增加轴弯曲时刻。这可以通过从旋转的悬臂轴转变为固定轴来实现，该固定轴被加强以在轴承的任一侧基本上不偏转。这样的固定轴的直径可以更小，以减少轴承摩擦转矩。此外，这种轴可以具有增加的轴承接触面积并确保轴承对准，所有这些都有助于增加轴承寿命。提供了一种用于增加浸没辊的浮力的装置。

8. 发明授权

US5401317A Coating control apparatus 失效
标题翻译：涂布控制装置
公开(公告)号：US5401317A
公开(公告)日：1995-03-28
申请号：US990691
申请日：1992-12-15
申请人： Timothy L. Cox , John L. Loth , Anthony J. Santilli , Howard Snyder , Walter A. Wilson
发明人： Timothy L. Cox , John L. Loth , Anthony J. Santilli , Howard Snyder , Walter A. Wilson
IPC分类号： B05C3/12 , B05C11/06 , C23C2/20
CPC分类号： B05C3/125 , B05C11/06 , C23C2/20
摘要： A coating control system is provided enabling continuous operations, free of interruption for coating control purposes, while achieving desired coating weight and thickness profile for the various gages, widths and coating specifications encountered on a given continuous strip production line. In each of a pair of elongated pneumatic dies, a pressurized gas jet is controllably shaped and directed by flow-control means internally-mounted of each pneumatic die to impinge against its respective substrate coated surface with its major directional component of force being controlled to be perpendicularly transverse to the travel path of the coated strip across its full width. Adjustment of such internally-mounted means is coordinated with control of gas pressure supply and/or adjustment of die positioning means to maintain desired coating weight and coating profile across the width of the strip. Pneumatic and other crown-control measures of the invention are exercised along the centerline of the strip enabling production of continuous-strip galvanized steel product having improved tracking and handling properties.
摘要翻译：提供了一种涂层控制系统，其实现连续操作，不受中间涂层控制的目的，同时为给定的连续条带生产线上遇到的各种规格，宽度和涂层规格达到所需的涂层重量和厚度分布。在一对细长的气动模具中的每一个中，加压气体射流被可控地成形并由每个气动模具内部安装的流量控制装置引导，以撞击其各自的基底涂覆表面，其主要方向分力被控制为垂直于穿过其整个宽度的涂覆带的行进路径。这种内部安装的装置的调整与气体压力供应的控制和/或模具定位装置的调整相配合，以保持所需的涂层重量和穿过带的宽度的涂层轮廓。沿着条带的中心线实施本发明的气动和其他冠部控制措施，使得能够生产具有改进的跟踪和操作性能的连续带钢镀锌钢产品。

9. 发明授权

US5239959A Isolated combustion and diluted expansion (ICADE) piston engine 失效
标题翻译：隔离燃烧和稀释膨胀（ICADE）活塞发动机
公开(公告)号：US5239959A
公开(公告)日：1993-08-31
申请号：US901539
申请日：1992-06-22
申请人： John L. Loth , Eric Loth , Francis Loth
发明人： John L. Loth , Eric Loth , Francis Loth
IPC分类号： F02B19/02 , F02B41/00 , F02B77/11
CPC分类号： F02B77/11 , F02B19/02 , F02B41/00 , Y02T10/125 , Y02T10/14
摘要： The "Isolated Combustion and Dilution Expansion (ICADE) Engine", is a piston/cylinder arrangement used primarily for the compression of air and the expansion of diluted hot combustion products. Fuel injection and rapid combustion take place inside a separate combustion chamber, using a near stoichiometric mixture. The combustion pressurization provides the pressure needed to accelerate the combustion products tangentially into the donut shaped cavity formed by the piston/cylinder clearance. There they establish a vortex which enhances rapid mixing, rapid cooling to quench NO.sub.x forming reactions and to temporarily store the kinetic energy of the combustion products to limit the combustion pressure peak acting on the piston surface. The tangential entry also permits detonation combustion without normal shock reflections on the piston surface, thus preventing "knock". Only during the compression stroke, is the combustion chamber isolated from the piston/cylinder arrangement, by a valve with "controlled leakage". During the compression stroke, this "leaky valve" keeps the combustion chamber pressure lower than the pressure inside the cylinder. This controlled pressure difference serves to: prevent fuel from escaping into the cylinder, produce good fuel mixing with combustion air, permits the use of low octane fuel at moderate compression ratio inside the combustor, while the cylinder operates at high compression ratio for high thermal efficiency. Power level control is obtained by modulating the "leaky valve" to regulate the supply of combustion air, fuel flow control is separate. This configuration eliminates the need for a cylinder intake throttle valve.
摘要翻译： “隔离燃烧和稀释膨胀（ICADE）发动机”是主要用于压缩空气和稀释热燃烧产物的膨胀的活塞/气缸装置。燃料喷射和快速燃烧在独立的燃烧室内进行，使用接近化学计量的混合物。燃烧加压提供了将燃烧产物切向加速到由活塞/气缸间隙形成的环形空腔中所需的压力。在那里，它们建立了一种涡流，可增强快速混合，快速冷却以淬灭NOx形成反应，并临时储存燃烧产物的动能，以限制作用在活塞表面上的燃烧压力峰值。切向进入也允许爆炸燃烧而没有在活塞表面上的正常冲击反射，从而防止“敲击”。只有在压缩冲程期间，燃烧室是通过具有“受控泄漏”的阀与活塞/汽缸装置隔离的。在压缩冲程期间，这个“泄漏阀”使燃烧室压力保持在气缸内部的压力以下。该控制压力差用于：防止燃料泄漏到气缸中，产生与燃烧空气混合的良好燃料，允许在燃烧器内部以中等压缩比使用低辛烷值燃料，同时气缸以高压缩比运行以获得高的热效率。功率电平控制通过调节“泄漏阀”来调节燃烧空气的供应，燃料流量控制是分开的。该配置消除了对气缸进气节流阀的需要。

10. 发明授权

US07134631B2 Vorticity cancellation at trailing edge for induced drag elimination 失效
标题翻译：用于诱导阻力消除的后缘处的涡度消除
公开(公告)号：US07134631B2
公开(公告)日：2006-11-14
申请号：US10865195
申请日：2004-06-10
申请人： John L. Loth
发明人： John L. Loth
IPC分类号： B64C21/06
CPC分类号： B64C11/001 , B64C21/08 , B64C23/065 , B64C2230/28 , Y02T50/164 , Y02T50/166 , Y02T50/66
摘要： Wing tip vortices are evident from airliner vapor trails, and helicopter blade slap. Elliptically loaded high aspect ratio tapered wings have minimum induced drag but cannot eliminate it. Different methods are disclosed herein, for upper and lower surface boundary layers to cancel their opposing vorticity upon shedding from the trailing edge, thereby eliminating wake vorticty, induced drag and associated noise. This requires wing-rotor-propeller or fan blades with a platform designed for uniform bound circulation and with boundary layer control near the tip. In addition this requires special techniques to counter span-wise pressure gradients, such as tip circulation control blowing or an upwind small propeller or wind turbine on each tip. These techniques can eliminate wake vorticity with its induced drag, noise, flying on the backside of the power curve and the option for asymmetric loading by pneumatic means to eliminate need for cyclic pitch control or conventional ailerons.
摘要翻译：翼尖涡流从飞机蒸汽路径和直升机叶片拍打都是显而易见的。椭圆加载的高纵横比锥形翼具有最小的诱导阻力，但不能消除它。本文公开了不同的方法，用于上表面边界层和下表面边界层，以在从后缘脱落时抵消其相反的涡度，从而消除尾流振动，诱发阻力和相关噪声。这需要机翼转子螺旋桨或风扇叶片，其具有设计用于均匀结合循环并且在尖端附近具有边界层控制的平台。此外，这需要特殊技术来对抗跨度压力梯度，例如尖端循环控制吹风或每个尖端上的上风小推进器或风力涡轮机。这些技术可以通过其诱发的阻力，噪声，功率曲线背面的飞行以及气动方式的非对称负载选项来消除尾流涡度，以消除对循环桨距控制或常规副翼的需要。

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