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    • 81. 发明授权
    • Method and apparatus for welding thin metal sheets
    • 用于焊接薄金属片的方法和设备
    • US4755652A
    • 1988-07-05
    • US767541
    • 1985-08-20
    • Aldo V. La Rocca
    • Aldo V. La Rocca
    • B23K26/00B23K11/10B23K11/11B23K11/30B23K26/20B23K26/22
    • B23K26/22B23K11/3081
    • There is described a method for welding thin metal sheets (A, B) by the localized heating of limited juxtaposed zones of the metal sheets to be welded to cause their fusion and to form spot welds (S). In each weld zone, the metal sheets (A, B) are heated and fused along a closed line so that each weld spot (S) has a substantially annular configuration in cross section in a plane parallel to the metal sheets.This welding may be achieved for example with the use of a laser (2) produced by a laser source (1), or by electrical resistance welding with a pair of opposed electrodes (6, 7) the ends whereof which are intended to grip the metal sheets (A, B) are suitably shaped.
    • 描述了通过局部加热待焊接的金属板的有限并置区域来熔化薄金属片(A,B)以使其熔化并形成点焊(S)的方法。 在每个焊接区域中,金属板(A,B)沿着闭合线被加热和熔合,使得每个焊点(S)在平行于金属板的平面中具有基本环形的横截面。 这种焊接可以例如通过使用由激光源(1)产生的激光器(2)或通过电阻焊接与一对相对的电极(6,7)来实现,其中这些端部旨在夹持 金属片(A,B)适当地成形。
    • 84. 发明授权
    • Device for visually displaying alphanumeric characters, particularly in
motor vehicles
    • 用于在视觉上显示字母数字字符的装置,特别是在机动车辆中
    • US4654652A
    • 1987-03-31
    • US577832
    • 1984-02-07
    • Eraldo Cerruti
    • Eraldo Cerruti
    • G09F9/30G09F9/302G09G3/04
    • G09F9/302
    • A device for visually displaying alphanumeric characters by means of segments which are individually and selectively switchable between two operating states, one of which corresponds to visual perceptability of the segments themselves. The segments are arranged in identical, adjacent groups forming a repeating structure, wherein each group comprises first segments together defining a main configuration including two quadrilateral-shaped spaces arranged one above the other and open on their right-hand sides, second segments defining first and second subsidiary configurations disposed respectively at the lower left-hand corner, and the upper left-hand corner of the main configuration and each including a segment which extends substantially vertically from a respective corner of the main configuration itself, two third segments one of which occupies the upper left-hand portion of the lower quadrilateral-shaped space of the main configuration, and the other of which is located below the lower right-hand corner of the main configuration.
    • 一种用于通过在两个操作状态之间单独和可选择地切换的段可视地显示字母数字字符的装置,其中一个对应于段本身的视觉感知能力。 这些段被布置在形成重复结构的相同的相邻组中,其中每个组包括第一段,其一起限定主构型,其包括一个彼此上下排列并在其右侧上敞开的两个四边形空间,第二段限定第一和 第二辅助结构分别设置在左下角和主构型的左上角,并且每个包括从主构型本身的相应角落大致垂直延伸的段,其中一个位于其中一个 主要结构的下四边形空间的左上部分,另一个位于主构型的右下角。
    • 86. 发明授权
    • Regulation device for a turbo compressor unit for supercharging an
internal combustion engine
    • 用于对内燃机进行增压的涡轮压缩机单元的调节装置
    • US4597264A
    • 1986-07-01
    • US555837
    • 1983-11-28
    • Giovanni Cipolla
    • Giovanni Cipolla
    • F02B37/18F02B37/12
    • F02B37/186F02D2200/0406Y02T10/144
    • A device for regulating the supercharging of an engine, of the type provided with a pressure limiting valve disposed in a branch of the supply duct of a turbine of the turbo compressor unit and operable to regulate the flow rate of gas supplied to the turbine. The valve is pneumatically controlled by means of an actuator which detects the pressure difference between a first and a second chamber. The first chamber is connected to the atmosphere and the second chamber is connected with valve means for alternatively connecting this latter to the atmosphere and to an accumulator maintained at a substantially constant pressure different from atmospheric pressure, and for fluid tight sealing the second chamber, in such a way as to determine and then maintain in it a control pressure the value of which is variable continuously between that of the atmospheric pressure and that of the pressure in the said accumulator.
    • 一种用于调节发动机增压的装置,其具有设置在涡轮压缩机单元的涡轮机的供应管道的分支中的限压阀的类型并且可操作以调节供应到涡轮机的气体的流量。 该阀通过一个致动器进行气动控制,该致动器检测第一和第二室之间的压力差。 第一室连接到大气,第二室与阀装置连接,用于将其与大气交替地连接并保持在与大气压不同的基本上恒定的压力下的蓄能器,并且用于流体密封第二室 这样一种方式来确定并且然后保持其值在大气压力和所述蓄能器中的压力值之间连续变化的控制压力。