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    • 1. 发明授权
    • Windshield temperature control system
    • 挡风玻璃温度控制系统
    • US5496989A
    • 1996-03-05
    • US238553
    • 1994-05-05
    • Michael P. BradfordThomas Perrotta
    • Michael P. BradfordThomas Perrotta
    • B60S1/02H05B3/84H05B1/02B60L1/02
    • H05B3/84B60S1/026H05B1/0236H05B2203/035
    • A windshield temperature control system (200) monitors aircraft operating (240) and environmental (246) conditions, and determines, based on the fixed physical properties of the windshield (250,251 ), a required film temperature necessary to produce a heat output to maintain the internal and/or external temperature of the windshield at a desired temperature. The heat output is based on a total heat loss including internal heat loss and external convective, evaporative, sensible and radiation heat loss, and a film temperature error defined as the difference (340) between required film temperature and actual film temperature is applied via proportional (355) and integral (350) control paths to produce zero steady state film temperature error. The desired external temperature is selected to be sufficiently above freezing, i.e., 0.degree. C., to prevent ice formation on the windshield, and the desired internal temperature is selected to be sufficiently above the cockpit air dew point to prevent condensation on the internal surfaces of the windshield. During start-up at low film temperature, film temperature error is filtered (315) to gradually heat up the film at a rate dependent upon the magnitude of the error. After a warm-up delay (307), film temperature error is compared to a fixed temperature error limit (385), the exceedance of which will cause termination of film heating (390) to thereby prevent over temperature of the windshield.
    • 挡风玻璃温度控制系统(200)监测飞机操作(240)和环境(246)条件,并且基于挡风玻璃(250,251)的固定物理特性确定产生热输出所需的所需膜温度以维持 挡风玻璃的内部和/或外部温度在所需温度。 热输出基于总热损失,包括内部热损失和外部对流,蒸发,显热和辐射热损失,并且定义为所需膜温度和实际膜温度之间的差值(340)的膜温度误差通过比例 (355)和积分(350)控制路径以产生零稳态膜温度误差。 所需的外部温度选择为足够高于冰点,即0℃,以防止挡风玻璃上的冰形成,并且期望的内部温度被选择为足够高于驾驶舱空气露点以防止内表面上的冷凝 的挡风玻璃 在低膜温度的启动期间,膜温度误差被过滤(315)以逐渐地以取决于误差大小的速率加热膜。 在预热延迟(307)之后,将膜温度误差与固定温度误差极限(385)进行比较,其超出将导致膜加热终止(390),从而防止挡风玻璃的过热。
    • 3. 发明授权
    • Electric chip detector
    • 电芯检测器
    • US4598280A
    • 1986-07-01
    • US642302
    • 1984-08-20
    • Michael P. Bradford
    • Michael P. Bradford
    • F16N29/00G07C3/00G01R27/02G01N15/06G01R33/12
    • F16N29/00G07C3/00
    • Frequently, particularly in the case of old machines such as engines, traissions, and gear boxes, particles, or "chips", are produced as the internal parts wear out. When these chips are present they indicate equipment damage and must be removed since they can cause additional damage to the equipment. For over a decade such electric chip detectors have been installed in helicopter transmissions and engines, as well as in propulsion and drive systems of many military fixed wing aircraft. Detectors usually have a pair of permanently magnetized electrodes that are insulated from each other and positioned to form a magnetic field in the small gap therebetween. One of the underlying problems of monitoring wear particles is that detectors can be triggered by an accumulation of metallic dust, causing a false chip detection warning. The wear particle detector system herein, of the type having a pair of electrically actuated electrodes, is constructed to discriminate between harmless dust and harmful chips while monitoring the rate of wear particle accumulation as a machine runs.
    • 特别是在诸如发动机,变速器和齿轮箱,颗粒或“切屑”这样的旧机器的情况下,当内部零件磨损时就会产生。 当这些芯片存在时,它们指示设备损坏,并且必须将其移除,因为它们可能对设备造成额外的损坏。 十多年来,这种电子芯片检测器已经安装在直升机变速器和发动机以及许多军用固定翼飞机的推进和驱动系统中。 检测器通常具有一对永久磁化的电极,它们彼此绝缘并且定位成在它们之间的小间隙中形成磁场。 监测磨损颗粒的一个潜在问题是检测器可以由金属粉尘的积累触发,导致错误的芯片检测警告。 这种具有一对电致动电极的类型的磨损颗粒检测器系统被构造成在监测机器运行时的磨损颗粒积聚的速率的同时,区分无害的灰尘和有害的碎屑。
    • 4. 发明授权
    • Power management under limited power conditions
    • 电力管理在有限的电力条件下
    • US06633802B2
    • 2003-10-14
    • US09800075
    • 2001-03-06
    • Anthony F. SodoskiBruce S. HamiltonMichael P. Bradford
    • Anthony F. SodoskiBruce S. HamiltonMichael P. Bradford
    • H02H700
    • H02J3/006B60L15/2045B60L15/36H02J3/14Y02T10/7283Y02T90/16Y10T307/391Y10T307/615Y10T307/625Y10T307/724
    • A vehicle power system includes a multiple of electrical generators which provide power for vehicle electrical systems or loads through an electrical load management center which communicates with a general purpose processor set such that the power supplied to each electrical load may be individually controlled. A display communicates with the GPPS to present an electrical system status screen to the vehicle crew such that the crew is constantly made aware of the prevailing electrical power conditions in a rapid and efficient manner. During a drastically reduced generator situation, the GPPS automatically disconnects loads via a predefined load shed priority list. Once electrical loads are disconnected via the predefined load shed priority list the crew can reactivate and deactivate selected systems for the current mission circumstances through a load recovery screen accessible through the display.
    • 车辆电力系统包括多个发电机,其通过与通用处理器组通信的电负载管理中心为车辆电气系统或负载提供电力,使得可以单独控制提供给每个电负载的功率。 显示器与GPPS通信以向车辆人员呈现电气系统状态屏幕,使得机组人员以快速且有效的方式不断地意识到当前的电力状况。 在大幅度减少的发电机情况下,GPPS会通过预定义的负载优先级列表自动断开负载。 一旦通过预定义的载荷优先级列表断开电力负载,机组人员可以通过显示屏可访问的负载恢复屏幕,为当前任务情况重新激活和停用所选系统。