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    • 21. 发明授权
    • Switching power supply
    • 开关电源
    • US6064580A
    • 2000-05-16
    • US262917
    • 1999-03-05
    • Haruo WatanabeHaruhiko Hatakeyama
    • Haruo WatanabeHaruhiko Hatakeyama
    • H02M3/335H02M7/04H02M7/217
    • H02M3/33592Y02B70/1475
    • A switching power supply has first and second switching elements that are alternately turned on to cause an alternating current to flow through a primary winding of a transformer. The alternating current flowing through the primary winding induces voltages respectively across first and second secondary windings of the transformer. Synchronous rectifying transistors are turned on by the voltages induced across the first and second secondary windings, causing a current to flow alternately through the first and second secondary windings. Either one of the first and second switching elements is turned on while the other is being turned off, except for short off-times in which both the first and second switching elements are prevented from being turned on. As a result, when currents flow through the first and second secondary windings, the synchronous rectifying transistors are turned on. Therefore, no current flows through internal parasitic diodes of the synchronous rectifying transistors, and hence any loss caused thereby is very small.
    • 开关电源具有交替导通以使交流电流流过变压器的初级绕组的第一和第二开关元件。 流过初级绕组的交流电流分别在变压器的第一和第二次级绕组上引起电压。 同步整流晶体管由在第一和第二次级绕组两端感应的电压导通,导致电流交替地流过第一和第二次级绕组。 第一开关元件和第二开关元件中的任何一个都被接通而另一个被截止,除了防止第一和第二开关元件被导通的短时间之外。 结果,当电流流过第一和第二次级绕组时,同步整流晶体管导通。 因此,没有电流流过同步整流晶体管的内部寄生二极管,因此由此引起的任何损耗非常小。
    • 26. 发明授权
    • Apparatus for treating dust-containing gas
    • 用于处理含尘气体的装置
    • US4584003A
    • 1986-04-22
    • US606199
    • 1984-05-02
    • Noriyuki OdaHaruo WatanabeTomohiro Morishita
    • Noriyuki OdaHaruo WatanabeTomohiro Morishita
    • B01D46/00B01D46/24B01D46/48B01D50/00B01D39/20
    • B01D46/2407B01D46/0009B01D46/0042B01D46/0045B01D46/48B01D2273/20B01D2273/28F23J2217/101
    • An apparatus for treating a dust-containing gas which comprises at least one vertically arranged filtration tube made of a solid porous material, a first filration tube supporter provided at the outer and upper part of the at least one filtration tube, a second filtration tube supporter provided at the outer and lower part of the at least one filtration tube, sealing means for dust respectively provided at a connecting part between the first filtration tube supporter and the at least one filtration tube and at a connecting part between the second filtration tube supporter and at least one filtration tube, an upper case with a dust-containing gas inlet which is placed above the first filtration tube supporter, a middle case with at least one clean gas outlet for supporting the first and second filtration tube supporters and a lower case with a dust discharging port which is placed below the second filtration tube supporter.
    • 一种用于处理含尘气体的装置,包括至少一个由固体多孔材料制成的垂直布置的过滤管,设置在所述至少一个过滤管的外部和上部的第一过滤管支撑件,第二过滤管支撑件 设置在所述至少一个过滤管的外部和下部,分别设置在所述第一过滤管支撑件和所述至少一个过滤管之间的连接部分处的灰尘密封装置,以及所述第二过滤管支撑件和 至少一个过滤管,具有放置在第一过滤管支撑件上方的含尘气体入口的上壳体,具有用于支撑第一和第二过滤管支撑件的至少一个清洁气体出口的中间壳体和具有 设置在第二过滤管支架的下方的排尘口。
    • 29. 发明授权
    • Fuel injection control system
    • 燃油喷射控制系统
    • US4471743A
    • 1984-09-18
    • US420942
    • 1982-09-21
    • Haruo Watanabe
    • Haruo Watanabe
    • F02D41/04F02D41/12F02D41/18F02D41/32F02D41/34F02D5/02
    • F02D41/123
    • An injector is driven in response to a basic injection pulse signal having a pulse width extracted from an engine rotational speed and an intake air flow rate. It is judged that an engine is in normal operation only after the engine has performed predetermined rotations from a moment at which a throttle valve begins to open. During normal operation of the engine, a time period for limiting a pulse width corresponding to an engine rotational speed is selected, and, after this time period has elapsed, a pulse cut signal is generated to interrupt fuel injection of the injector in spite of the presence of the basic injection pulse signal. The basic fuel injection pulse signal is not cut under a transitional condition of the engine.
    • 响应于从发动机转速和进气流量提取脉冲宽度的基本喷射脉冲信号驱动喷射器。 只有在发动机从节气门开始打开的时刻进行了规定的转动之后,才认为发动机正常运转。 在发动机的正常运行中,选择用于限制对应于发动机转速的脉冲宽度的时间段,并且在该时间段过去之后,产生脉冲切断信号以中断喷射器的燃料喷射,尽管 存在基本的注入脉冲信号。 基本的燃油喷射脉冲信号在发动机的过渡状态下不被切断。