-
公开(公告)号：US4780619A
公开(公告)日：1988-10-25
申请号：US050999
申请日：1987-05-15
CPC分类号： H02J7/1438 , Y10T307/718
摘要： A high DC voltage power supply includes a three-phase autotransformer and a three-phase full-wave rectifier applied to the usual motor vehicle electrical system of the low DC voltage type. The low three-phase AC voltage of the usual system is transformed by the autotransformer to obtain a high three-phase AC voltage which is then rectified by the rectifier to provide a high DC voltage. The load energized by the high DC voltage is ungrounded to reduce the voltage available for inadvertent discharge from either load terminal to ground. Switching apparatus is provided for selectively applying the low three-phase AC voltage to the autotransformer only when it is desired to energize the load thereby avoiding at all other times the energy losses that would otherwise be associated with energization of the autotransformer. In one embodiment, the load is a windshield heater element and the autotransformer has multiple sets of input taps to provide deice and defog modes of operation, respectively. The tapping of the autotransformer on the input or primary side yields efficiencies in the construction and operation of the autotransformer. The engine driven generator of the vehicle electrical system is excited from a voltage source independent of the low three-phase AC voltage put out by the generator, at least during any period that the generator is overloaded, thereby to prevent a degenerative collapse in the generator output voltage.
摘要翻译： 高直流电压电源包括三相自耦变压器和三相全波整流器，其应用于低直流电压型的通常机动车辆电气系统。 通常系统的低三相交流电压由自耦变压器变换，以获得高三相交流电压，然后由整流器进行整流，以提供高直流电压。 由高直流电压供电的负载不接地，以降低可用于从负载端子到接地的无意放电的电压。 提供开关装置，用于仅当需要对负载通电时选择性地将低三相AC电压施加到自耦变压器，从而在所有其他时间避免否则将与自耦变压器的通电相关联的能量损失。 在一个实施例中，负载是挡风玻璃加热器元件，并且自耦变压器分别具有多组输入抽头以提供操作模式和除雾模式。 自耦变压器在输入或初级端的开关在自耦变压器的结构和运行方面产生效率。 至少在发电机过载的任何时间段内，车载电气系统的发动机驱动发电机从电压源被激励，独立于由发电机输出的低三相交流电压，从而防止发电机的退化崩溃 输出电压。
-
公开(公告)号：US4730097A
公开(公告)日：1988-03-08
申请号：US050582
申请日：1987-05-15
申请人： Robert W. Campbell , Donald O. Ruff
发明人： Robert W. Campbell , Donald O. Ruff
CPC分类号： H05B3/84 , B60S1/026 , G05D23/1912 , H05B1/0236 , H05B2203/035
摘要： A windshield heater element for an automotive vehicle is controlled to provide a maximum power deice mode of operation and a reduced power defog mode of operation. The deice mode of operation is initiated in response to an operator actuated deice command and is terminated in response to the first to occur of expiration of a predetermined time period after initiation, or an operator actuated off command. The defog mode of operation is initiated in response to termination of a preceding deice mode of operation provided that such termination was not in response to an operator actuated off command, or an operator actuated defog command. The defog mode of operation is terminated in response to the first to occur of expiration of a predetermined time period after initiation provided that such initiation was not in response to an operator actuated defog command, or an operator actuated off command. Further, the deice mode of operation is permitted only when the vehicle transmission is in the park or neutral state, and the idle speed of the engine is raised above the normal idle speed to ensure that the power produced by the engine driven generator is adequate to meet the combined power requirement of the windshield heater element and other vehicle loads during the deice mode of operation. Additionally, the energization of the heater element is terminated or prohibited in response to detection of an abnormally high windshield temperature condition, an abnormally low battery voltage condition, an abnormally low heater current condition, or vehicle ignition shut-off.
摘要翻译： 控制用于机动车辆的挡风玻璃加热器元件以提供最大功率运行模式和减少的功率除雾操作模式。 操作模式响应于操作者致动的指令命令而启动，并且响应于启动之后的预定时间段的第一次到期而终止，或者操作者致动关闭命令。 除雾操作模式是响应于先前的操作模式的终止而启动的，只要这种终止不响应于操作者致动关闭命令或操作者致动的除雾指令。 响应于起动后的预定时间段的第一次到期，停止除雾操作模式，只要这种启动不响应于操作者启动的除雾指令或操作者致动关闭命令。 此外，仅当车辆变速器处于停车状态或空档状态时，才允许操作模式，并且发动机的怠速转速高于正常怠速，以确保由发动机驱动发电机产生的动力足以 在操作模式期间满足挡风玻璃加热器元件和其他车辆负载的组合功率要求。 此外，响应于检测到异常高的挡风玻璃温度条件，异常低的电池电压状况，异常低的加热器电流状况或车辆点火切断，加热器元件的通电被终止或禁止。
-
公开(公告)号：US4947053A
公开(公告)日：1990-08-07
申请号：US254348
申请日：1988-10-05
IPC分类号： H02J7/14
CPC分类号： H02J7/1438 , Y10T307/297
摘要： A high DC voltage power supply includes a three-phase autotransformer and a three-phase full-wave rectifier applied to the usual motor vehicle electrical system of the low DC voltage type. The low three-phase AC voltage of the usual system is transformed by the autotransformer to obtain a high three-phase AC voltage which is then rectified by the rectifier to provide a high DC voltage. The load energized by the high DC voltage is ungrounded to reduce the voltage available for inadvertent discharge from either load terminal to ground. Switching apparatus is provided for selectively applying the low three-phase AC voltage to the autotransformer only when it is desired to energize the load thereby avoiding at all other times the energy losses that would otherwise be associated with energization of the autotransformer. In one embodiment, the load is windshield heater element and the autotransformer has multiple sets of input taps to provide deice and defog modes of operation, respectively. The tapping of the autotransformer on the input or primary side yields efficiencies in the construction and operation of the autotransformer. In another embodiment, a current transformer is provided for measuring the AC current through one of the input and output leads of the autotransformer as an indication of the DC current through the load thereby to detect an abnormally low load current condition.
摘要翻译： 高直流电压电源包括三相自耦变压器和三相全波整流器，其应用于低直流电压型的通常机动车辆电气系统。 通常系统的低三相交流电压由自耦变压器变换，以获得高三相交流电压，然后由整流器进行整流，以提供高直流电压。 由高直流电压供电的负载不接地，以降低可用于从负载端子到接地的无意放电的电压。 提供开关装置，用于仅当需要对负载通电时选择性地将低三相AC电压施加到自耦变压器，从而在所有其他时间避免否则将与自耦变压器的通电相关联的能量损失。 在一个实施例中，负载是挡风玻璃加热器元件，并且自耦变压器分别具有多组输入抽头以提供操作模式和除雾模式。 自耦变压器在输入或初级端的开关在自耦变压器的结构和运行方面产生效率。 在另一个实施例中，提供电流互感器用于测量通过自耦变压器的输入和输出引线之一的交流电流作为通过负载的直流电流的指示，从而检测异常低的负载电流状况。
-
公开(公告)号：US4491779A
公开(公告)日：1985-01-01
申请号：US541242
申请日：1983-10-12
申请人： Robert W. Campbell , Donald O. Ruff
发明人： Robert W. Campbell , Donald O. Ruff
CPC分类号： H02J7/1423 , Y02T10/7005
摘要： A multivoltage electrical system for a motor vehicle that has a pair of storage batteries which, in a first charging mode are charged in series from the direct voltage output terminals of a bridge rectifier connected to an alternating current generator. In a second charging mode, only one of the batteries is charged and this takes place when a plurality of controlled rectifiers connecting the generator and a common junction of the batteries are gated conductive. The switching between modes is a function of the voltage of one of the batteries and the voltage of a triangular voltage waveform generator operating at a fixed frequency. The system is maintained in the second mode when generator speed is below a predetermined value.
摘要翻译： 一种用于机动车辆的多电压电气系统，其具有一对蓄电池，其在与第一充电模式相连接的交流发电机的桥式整流器的直流电压输出端串联充电。 在第二充电模式中，只有一个电池被充电，并且当连接发电机的多个受控整流器和电池的公共接点被选通时，会发生这种情况。 模式之间的切换是电池中的一个的电压和以固定频率工作的三角形电压波形发生器的电压的函数。 当发电机速度低于预定值时，系统保持在第二模式。
-
公开(公告)号：US5766032A
公开(公告)日：1998-06-16
申请号：US780907
申请日：1997-01-09
CPC分类号： H01R33/971 , F21V19/0095 , F21Y2103/37 , H01R33/0809
摘要： A theft-resistant assembly for screw base compact fluorescent lamps of the type having at least one U-tube integrated with and extending from an adapter member. The adapter member has a threaded portion for engagement with a lamp socket. The assembly includes a ring for disposition around a protrusion of the lamp socket protrusion, arms upstanding from the ring with each of the arms having an arm connector thereon, a collar for disposition around the U-tube and for engagement with a top surface of the adapter member, and legs depending from the collar with each of the legs having a leg connector thereon. The leg connectors are lockingly engageable with the arm connectors, respectively, to lock the collar to the ring, whereby to lock the adapter member to the socket.
摘要翻译： 用于具有与适配器构件一体并且从适配器构件延伸的至少一个U形管的螺钉底座紧凑型荧光灯的防盗组件。 适配器构件具有用于与灯插座接合的螺纹部分。 组件包括环，用于围绕灯插座突出部的突出部配置，臂从环上直立，其中每个臂具有臂连接器，用于围绕U形管设置并用于与所述U形管的顶表面接合的套环 适配器构件，以及从所述套环悬挂的腿，其中每个腿在其上具有腿连接器。 腿连接器分别与臂连接器可锁定地接合，以将套环锁定到环上，从而将适配器构件锁定到插座。
-
6.发明授权
公开(公告)号：US4376830A
公开(公告)日：1983-03-15
申请号：US291587
申请日：1981-08-10
CPC分类号： C04B28/36
摘要： Sulfur cement-aggregate compositions comprising a sulfur cement and an aggregate containing an expansive clay and processes for preparing such compositions. The processes, and resulting compositions, are characterized by the addition of certain organosilanes in the composition prior to solidifying (cooling) the composition. The resulting solidified composition has improved water stability.The compositions can be used as mortars or concretes depending on the particle size of the principal aggregate component.
摘要翻译： 包含硫磺水泥和含有膨胀粘土的骨料的硫磺水泥 - 骨料组合物和制备这种组合物的方法。 方法和所得组合物的特征在于在组合物凝固（冷却）之前在组合物中加入某些有机硅烷。 得到的固化组合物具有改善的水稳定性。 根据主要聚集体组分的粒径，组合物可用作砂浆或混凝土。
-
公开(公告)号：US4301274A
公开(公告)日：1981-11-17
申请号：US116434
申请日：1980-01-29
申请人： Robert W. Campbell
发明人： Robert W. Campbell
CPC分类号： C08G75/0236
摘要： Aromatic sulfide/sulfone polymers are prepared by initially contacting a dihaloaromatic sulfone, an alkali metal sulfide, an organic amide, and, optionally, an alkali metal carboxylate under polymerization conditions and subsequently at or near completion of the polymerization reaction, adding an end-capping agent comprising additional dihaloaromatic sulfone to the reaction mixture producing a polymer exhibiting improved physical properties including melt flow stability. The resulting polymers have utility as coatings, films, molded objects, filaments, fibers, and the like.
摘要翻译： 芳族硫化物/砜聚合物通过在聚合反应条件下，随后在聚合反应或接近完成时首先使二卤代芳砜，碱金属硫化物，有机酰胺和任选的碱金属羧酸盐接触来制备，加入封端 其包含额外的二卤代芳砜到反应混合物中，产生显示出改善的物理性质（包括熔体流动稳定性）的聚合物。 所得到的聚合物具有作为涂料，薄膜，成型体，长丝，纤维等的用途。
-
公开(公告)号：US4198245A
公开(公告)日：1980-04-15
申请号：US938666
申请日：1978-08-31
CPC分类号： C04B22/14
摘要： The strength of portland cement concrete structures which incorporate alkali metal or alkaline earth polysulfides is increased by heating the structures at temperatures above 110.degree. C.
摘要翻译： 通过在110℃以上的温度下加热结构，增加掺入碱金属或碱土金属多硫化物的波特兰水泥混凝土结构的强度。
-
公开(公告)号：US4139663A
公开(公告)日：1979-02-13
申请号：US823808
申请日：1977-08-11
申请人： Robert W. Campbell
发明人： Robert W. Campbell
CPC分类号： B05B7/0416
摘要： A process for applying a smooth coating of a plasticized-sulfur composition which comprises:(1) conducting a continuous stream of a molten plasticized-sulfur coating composition through a flexible conduit to a spray nozzle;(2) injecting a substantially inert pressurized gas into the conduit proximate to the nozzle at a flow rate such that the ratio of the flow rate of the coating composition in cubic feet per minute to the flow rate of the gas in cubic feet per minute is about 0.02/1 to about 1/1; and(3) spraying the coating composition and the gas from the conduit through the nozzle onto the surface to be coated.
摘要翻译： 一种应用光滑涂层的增塑硫组合物的方法，其包括：
-
公开(公告)号：US4051087A
公开(公告)日：1977-09-27
申请号：US687973
申请日：1976-05-20
IPC分类号： C08G69/26
CPC分类号： C08G69/265 , Y10T428/31739
摘要： Normally solid, moldable polyamides having diamine-derived structural units of the formula ##STR1## wherein each A is individually selected from the group consisting of 5-methylnonamethylene, 2,4-dimethyloctamethylene, 2,4,6-trimethylheptamethylene, and 4-isopropylheptamethylene; first diacid-derived structural units of the formula ##STR2## and second diacid-derived structural units of the formula ##STR3## wherein X is a divalent aliphatic hydrocarbon radical containing from 14 to 46 carbon atoms. Minor amounts of other polyamide-forming materials can be included in the copolyamide to provide up to 30 percent of the nitrogen atoms and up to 30 percent of the carbonyl groups. When used as adhesives, these copolyamides possess very good initial T-peel strength.
摘要翻译： 通常为具有式“IMAGE”的具有二胺衍生的结构单元的固体可成型聚酰胺，其中每个A各自选自5-甲基亚麻基，2,4-二甲基八亚甲基，2,4,6-三甲基亚庚基和4-异丙基亚庚基 ; 具有式“IMAGE”的第一二酸衍生的结构单元和式IMAMA的第二二酸衍生的结构单元，其中X是含有14至46个碳原子的二价脂族烃基。 可以在共聚酰胺中包含少量的其它聚酰胺形成材料，以提供高达30％的氮原子和至多30％的羰基。 当用作粘合剂时，这些共聚酰胺具有非常好的初始T剥离强度。
-
-
-
-
-
-
-
-
-
搜索结果
49 条记录 (耗时 0.021 秒)
