公开(公告)号：US5717584A

公开(公告)日：1998-02-10

申请号：US569856

申请日：1995-12-08

申请人： Kaushik Rajashekara ,  Venkatachari Rajagopalan

发明人： Kaushik Rajashekara ,  Venkatachari Rajagopalan

IPC分类号： H02M7/5387 ,  H02M3/24

CPC分类号： H02M7/5387 ,  H02M2007/4811 ,  Y02B70/1441

摘要： A quasi-resonant pole inverter provides soft-switching of the main inverter switch devices only when such opportunities are required by the pulse width modulation control. The inverter includes a main switching section and an auxiliary switching section. A phase-pole of the main switching section swings from source to ground potential with the assistance of the auxiliary switching section. The phase-pole swings from ground to source potential with the assistance of the auxiliary switching section. Low switch stresses are characteristic in both the main switching section devices and the auxiliary section switching devices. Main power is carried predominantly through the DC rails thereby minimizing power handling requirements of quasi-resonant reactive components.

摘要翻译： 只有当脉宽调制控制需要这样的机会时，准谐振极反相器才能提供主逆变器开关器件的软开关。 逆变器包括主开关部分和辅助切换部分。 主开关部分的相极在辅助切换部分的辅助下从源极到地电位摆动。 在辅助切换部分的辅助下，相极从地电位摆动。 低开关应力在主开关部分装置和辅助部分开关装置中是特征的。 主电源主要通过直流导轨进行，从而最小化准谐振电抗元件的功率处理要求。

公开(公告)号：US08820677B2

公开(公告)日：2014-09-02

申请号：US13163680

申请日：2011-06-18

申请人： Kaushik Rajashekara ,  George A. Pontones

发明人： Kaushik Rajashekara ,  George A. Pontones

IPC分类号： B64D41/00 ,  H02J9/06 ,  H02J1/10 ,  H02J3/38

CPC分类号： B64D41/00 ,  B64D2041/005 ,  B64D2221/00 ,  H01M2250/20 ,  H02J1/10 ,  H02J3/387 ,  H02J9/066 ,  H02J2001/004 ,  Y02B90/14 ,  Y02T50/54 ,  Y02T90/32 ,  Y02T90/36 ,  Y02T90/38

摘要： One embodiment of the present application is directed to a unique method for powering one or more critical loads in an aircraft. Another embodiment is a unique apparatus for powering one or more critical loads upon failure of one or more engines. Other embodiments include unique methods, systems, devices, and apparatus' for powering power loads in an aircraft. Further embodiments, forms, features, aspects, benefits, and advantages of the present application shall become apparent from the description and figures provided herewith.

摘要翻译： 本申请的一个实施例涉及用于为飞机中的一个或多个关键负载供电的独特方法。 另一个实施例是用于在一个或多个发动机故障时为一个或多个关键负载供电的独特装置。 其他实施例包括用于为飞行器中的电力负载供电的独特方法，系统，装置和装置。 本申请的其他实施例，形式，特征，方面，益处和优点将从本文提供的描述和图中变得显而易见。

公开(公告)号：US08727270B2

公开(公告)日：2014-05-20

申请号：US12947451

申请日：2010-11-16

申请人： Donald Burns ,  Kaushik Rajashekara

发明人： Donald Burns ,  Kaushik Rajashekara

IPC分类号： B64D41/00

CPC分类号： B64D27/16 ,  B64D41/00 ,  B64D2041/005 ,  B64D2205/00 ,  F02C3/113 ,  F02C7/32 ,  F02C7/36 ,  F05D2220/50 ,  Y02T50/44 ,  Y02T50/823 ,  Y02T90/36

摘要： One embodiment of the present invention is a unique aircraft. Another embodiment is a unique aircraft propulsion system. Still another embodiment is a unique system for taxiing an aircraft without starting one or more main aircraft propulsion engines. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for aircraft taxiing and propulsion systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

摘要翻译： 本发明的一个实施例是独特的飞机。 另一个实施例是独特的飞机推进系统。 另一个实施例是用于在不启动一个或多个主飞行器推进发动机的情况下滑行飞行器的独特系统。 其他实施例包括用于飞机滑行和推进系统的装置，系统，装置，硬件，方法和组合。 本申请的其它实施例，形式，特征，方面，益处和优点将从本文提供的描述和附图中变得显而易见。

公开(公告)号：US20130027002A1

公开(公告)日：2013-01-31

申请号：US13190076

申请日：2011-07-25

申请人： Kaushik Rajashekara ,  John Timothy Alt

发明人： Kaushik Rajashekara ,  John Timothy Alt

IPC分类号： H02P9/02

CPC分类号： H02P9/305 ,  H02P21/06

摘要： One embodiment of the present invention is a unique method of controlling the output of a synchronous electrical machine. Another embodiment is a unique method of controlling the output of a synchronous electrical machine for powering a load. Still another embodiment is a unique aircraft power generation system. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for fluid driven actuation systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

摘要翻译： 本发明的一个实施例是控制同步电机的输出的唯一方法。 另一个实施例是控制用于为负载供电的同步电机的输出的独特方法。 另一个实施例是独特的飞机发电系统。 其他实施例包括用于流体驱动致动系统的装置，系统，装置，硬件，方法和组合。 本申请的其它实施例，形式，特征，方面，益处和优点将从本文提供的描述和附图中变得显而易见。

公开(公告)号：US20120153076A1

公开(公告)日：2012-06-21

申请号：US12947451

申请日：2010-11-16

申请人： Donald Burns ,  Kaushik Rajashekara

发明人： Donald Burns ,  Kaushik Rajashekara

IPC分类号： B64D41/00 ,  F02C6/08

CPC分类号： B64D27/16 ,  B64D41/00 ,  B64D2041/005 ,  B64D2205/00 ,  F02C3/113 ,  F02C7/32 ,  F02C7/36 ,  F05D2220/50 ,  Y02T50/44 ,  Y02T50/823 ,  Y02T90/36

摘要： One embodiment of the present invention is a unique aircraft. Another embodiment is a unique aircraft propulsion system. Still another embodiment is a unique system for taxiing an aircraft without starting one or more main aircraft propulsion engines. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for aircraft taxiing and propulsion systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

摘要翻译： 本发明的一个实施例是独特的飞机。 另一个实施例是独特的飞机推进系统。 另一个实施例是用于在不启动一个或多个主飞行器推进发动机的情况下滑行飞行器的独特系统。 其他实施例包括用于飞机滑行和推进系统的装置，系统，装置，硬件，方法和组合。 本申请的其它实施例，形式，特征，方面，益处和优点将从本文提供的描述和附图中变得显而易见。

公开(公告)号：US20120119020A1

公开(公告)日：2012-05-17

申请号：US12947424

申请日：2010-11-16

申请人： Donald Burns ,  Kaushik Rajashekara

发明人： Donald Burns ,  Kaushik Rajashekara

IPC分类号： B64D41/00 ,  F02C7/26 ,  F02C6/00

CPC分类号： B64D27/00 ,  B64D33/00 ,  B64D35/00 ,  B64D2205/00 ,  F02C7/32 ,  F02C7/36 ,  Y02T50/44 ,  Y02T50/823

摘要： One embodiment of the present invention is a unique aircraft. Another embodiment is a unique aircraft propulsion system. Still another embodiment is a unique system for taxiing an aircraft without starting one or more main aircraft propulsion engines. Other embodiments include apparatuses, systems, devices, hardware, methods, and combinations for aircraft taxiing and propulsion systems. Further embodiments, forms, features, aspects, benefits, and advantages of the present application will become apparent from the description and figures provided herewith.

公开(公告)号：US07674538B2

公开(公告)日：2010-03-09

申请号：US10793354

申请日：2004-03-04

申请人： Malcolm J. Grieve ,  John A. MacBain ,  Kaushik Rajashekara ,  Gregory W. Alexander

发明人： Malcolm J. Grieve ,  John A. MacBain ,  Kaushik Rajashekara ,  Gregory W. Alexander

IPC分类号： H01M8/06

CPC分类号： H01M8/04097 ,  C01B3/38 ,  C01B3/382 ,  C01B2203/0233 ,  C01B2203/0238 ,  C01B2203/0244 ,  C01B2203/066 ,  C01B2203/1247 ,  C01B2203/148 ,  H01M8/04014 ,  H01M8/0618 ,  H01M2008/1293 ,  H01M2008/147 ,  Y02E60/526 ,  Y02P20/129 ,  Y02P20/142

摘要： Apparatus and method for operating a fuel cell system including a hydrocarbon catalytic reformer and close-coupled fuel cell stack by recycling anode syngas into the reformer in a range between 60% and 95% of the total syngas. At equilibrium conditions, oxygen required for reforming of hydrocarbon fuel is derived from endothermically reformed water and carbon dioxide in the syngas. Reforming temperature is between about 650° C. to 750° C. The stack exit temperature is about 800° C. to 880° C. such that the required endotherm can be provided by the sensible heat of the recycled syngas. The stack has approximately equal anode and cathode gas flows in opposite directions, resulting in cooling from both the anodes and cathodes.

摘要翻译： 通过将阳极合成气循环到总合成气的60％至95％之间的范围内来操作包括烃催化重整器和紧密耦合的燃料电池堆的燃料电池系统的装置和方法。 在平衡条件下，烃燃料重整所需的氧气来自合成气中的吸热重整水和二氧化碳。 重整温度在约650℃至750℃之间。堆叠出口温度为约800℃至880℃，从而可以通过再循环合成气的显热提供所需的吸热。 堆叠具有大致相等的阳极和阴极气体沿相反方向流动，导致从阳极和阴极两者的冷却。

公开(公告)号：US07648784B2

公开(公告)日：2010-01-19

申请号：US11371733

申请日：2006-03-09

申请人： Kaushik Rajashekara ,  George N. Simopoulos ,  Michael T. Faville ,  Elwood W. Wingeier

发明人： Kaushik Rajashekara ,  George N. Simopoulos ,  Michael T. Faville ,  Elwood W. Wingeier

IPC分类号： H01M8/04

CPC分类号： H01M8/04611 ,  H01M8/04619 ,  H01M8/0494 ,  H01M8/04955

摘要： A fuel cell APU system comprising a plurality of fuel cell modules connected in parallel. Each module includes a local controller connected to a master controller that coordinates the modules to achieve a desired power output at any given time. Each module is operated within an output range to maximize efficiency of the system. When load demand on a first module exceeds the desired output range of the module, an additional module is brought online in parallel with the first. As the load increases further, additional modules are brought online in cascade fashion to permit all modules to be operated efficiently. If a module is disabled, it is automatically switched out of service and replaced by a standby module. The master controller keeps track of the total operating time of each module and varies the sequence in which different modules are brought into service to balance deterioration among the modules.

摘要翻译： 一种燃料电池APU系统，包括并联连接的多个燃料电池模块。 每个模块包括连接到主控制器的本地控制器，其协调模块以在任何给定时间获得期望的功率输出。 每个模块在输出范围内运行，以最大限度地提高系统的效率。 当第一个模块上的负载需求超过模块的期望输出范围时，另外一个模块与第一个模块并联。 随着负载进一步增加，附加模块以级联方式联机，以允许所有模块高效运行。 如果某个模块被禁用，它将自动停用服务，并被备用模块所取代。 主控制器跟踪每个模块的总操作时间，并改变不同模块投入使用的顺序，以平衡模块之间的恶化。

公开(公告)号：US07323264B2

公开(公告)日：2008-01-29

申请号：US10855601

申请日：2004-05-27

申请人： John G. Noetzel ,  Kaushik Rajashekara ,  Harry L. Husted

发明人： John G. Noetzel ,  Kaushik Rajashekara ,  Harry L. Husted

IPC分类号： H01M8/04

CPC分类号： H01M8/0612 ,  H01M8/04007 ,  H01M8/04089 ,  H01M8/04298 ,  H01M2250/20 ,  Y02T90/32

摘要： A fuel cell system in accordance with the invention includes a single, central electronic controller (CPU) for controlling at least the Air Handling sub-system, the Reformer sub-system, the Power Electronics sub-system, and the Customer Interface sub-system. The central controller provides a central location for easier serviceability; increases data transport efficiency by eliminating lengthy links between distributed controllers; eliminates the need for multiple mechanical enclosures; allows for controller thermo conditioning in one mechanical enclosure; and reduces parasitic power losses by employing a single power supply.

摘要翻译： 根据本发明的燃料电池系统包括用于至少控制空气处理子系统，重整器子系统，电力电子子系统和客户接口子系统的单个中央电子控制器（CPU） 。 中央控制器提供了便于维修的中心位置; 通过消除分布式控制器之间的长链接来提高数据传输效率; 消除了对多个机械外壳的需要; 允许在一个机械外壳中进行控制器热调节; 并通过采用单个电源来减少寄生功率损耗。

公开(公告)号：US20070092766A1

公开(公告)日：2007-04-26

申请号：US11256531

申请日：2005-10-21

申请人： Diane England ,  Kaushik Rajashekara

发明人： Diane England ,  Kaushik Rajashekara

IPC分类号： H01M8/06 ,  H01M8/12 ,  H01M8/04 ,  B01D11/04

CPC分类号： C10G25/05 ,  C10G25/00 ,  C10G25/003

摘要： A system for desulfurizing hydrocarbon fuel for a reformer and SOFC stack in an SOFC system. The system comprises a liquid phase desulfurizer for low-temperature desulfurization of an amount of liquid fuel ahead of reformer/stack startup and for continuous removal of large refractory sulfur-containing compounds from low-temperature fuel thereafter during operation of the reformer/stack,and gas phase desulfurizer for continuous high-temperature desulfurization of a stream of vaporized hydrocarbon fuel downstream of the liquid phase desulfurizer. The gas phase desulfurizer may be either upstream or downstream of the reformer.

摘要翻译： 一种用于SOFC系统中重整器和SOFC堆的烃燃料脱硫系统。 该系统包括用于在重整器/堆垛启动之前对液态燃料进行低温脱硫的液相脱硫器，以及此后在重整器/堆垛操作期间从低温燃料中连续除去大的耐火含硫化合物，以及 气相脱硫器用于液相脱硫器下游气化烃燃料流的连续高温脱硫。 气相脱硫器可以在重整器的上游或下游。