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    • 52. 发明授权
    • Continuously variable transmission with wide transmission ratio range
    • 连续可变传动,传动比范围宽
    • US5643131A
    • 1997-07-01
    • US513978
    • 1995-09-14
    • Walter KuhnHartmut Herter
    • Walter KuhnHartmut Herter
    • F16H37/08F16H37/02
    • F16H37/0846F16H37/084F16H2037/0873Y10T74/19144
    • The invention concerns a continuously variable transmission having a driving and a driven shaft (1, 9) and first and second intermediate shafts (10, 11). Power is transmitted to the driven shaft (9) through a transmission variometer with i.sup.2 arrangement. According to the invention, the input power of the transmission is transmitted to the driven shaft through a transmission branch with constant ratio and through the continuously variable transmission branch. This power distribution reduces the proportion of the power transmitted through the continuously variable transmission branch. The transmission efficiency of the whole transmission may, in particular, be thus improved. This continuously variable transmission is designed for use in private cars and light utility vehicles.
    • PCT No.PCT / EP94 / 00832 Sec。 371 1995年9月14日第 102(e)日期1995年9月14日PCT 1994年3月16日PCT公布。 第WO94 / 21941号公报 日期1994年9月29日本发明涉及一种具有驱动轴和从动轴(1,9)以及第一和第二中间轴(10,11)的无级变速器。 动力通过带有i2排列的变速器传递到从动轴(9)。 根据本发明,变速器的输入功率通过传动分支以恒定比例传递到从动轴,并通过无级变速器传动。 该功率分配减少了通过无级变速器传输分支传递的功率的比例。 整个传输的传输效率尤其可以得到改善。 该无级变速器设计用于私家车和轻型多用途车辆。
    • 54. 发明授权
    • Method for reducing dynamic overvoltages in an alternating-current
system to which a direct-current system is connected
    • 用于减少直流系统连接到的交流系统中的动态过电压的方法
    • US4689733A
    • 1987-08-25
    • US878322
    • 1986-06-25
    • Gerhard GuthWalter KuhnGerhard LinhoferKadry Sadek
    • Gerhard GuthWalter KuhnGerhard LinhoferKadry Sadek
    • H02H7/122H02H7/26H02J1/00H02J3/36H02H7/00
    • H02J3/36H02H7/268Y02E60/60
    • Where different 3-phase systems are connected to each other via two static converters having an intermediate direct-current circuit, the exchange of power via the intermediate direct-current circuit can be interrupted by a severe disturbance, for example by failure of a static-converter or by line or busbar faults causing a short-circuiting of one of the static converters. This interruption means a change in the balance of effective power and, associated with this, a shedding of reactive load for the other undisturbed 3-phase system. To reduce high dynamic overvoltages which can lead to plant components being endangered or to operational disturbances, the firing angle of the static converter remaining in operation is regulated with dependence on the alternating voltage of the alternating-current system connected to this static converter, in such a manner that the overvoltage is reduced. This is carried out by regulating the current. The firing angle can be adjusted simultaneously with the short circuiting of the intermediate direct-current circuit by means of a short circuit device.
    • 在通过具有中间直流电路的两个静态转换器将不同的三相系统彼此连接的情况下,经由中间直流电路的电力交换可能被严重的干扰中断,例如静态 - 转换器或线路或母线故障导致其中一个静态转换器短路。 这种中断意味着有效功率的平衡发生变化,与此相反,其他未受​​干扰的三相系统的无功负载脱落。 为了减少高动态过电压,可导致工厂部件受到危及或受到操作干扰,剩余运行中的静态转换器的触发角度依赖于连接到该静态转换器的交流系统的交流电压进行调节 过电压降低的方式。 这是通过调节电流进行的。 可以通过短路装置与中间直流电路的短路同时调节触发角。