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    • 4. 发明授权
    • Motor-driven work apparatus
    • 电动工作装置
    • US5168837A
    • 1992-12-08
    • US901179
    • 1992-06-19
    • Horst Scholz
    • Horst Scholz
    • B25F5/00B25F5/02B27B17/00F01P5/02F01P5/06F01P11/12F02B63/02
    • F02B63/02B27B17/00F01P11/12F01P5/02
    • The invention is directed to a work apparatus having a fan wheel driven by a motor mounted in a housing. A fan cover covers the fan wheel and defines a plurality of air-inlet openings arranged in a grid-like pattern forward of the fan wheel through which a first component flow of cooling air passes to the fan wheel. The fan cover has an inside wall surface and a collar formed on the inside wall surface. An air-conducting wall is mounted on the inside wall surface and defines cooling channels communicating with the space within the collar for conducting a second component flow of cooling air to the fan wheel. The fan cover and the collar together with the air-conducting wall conjointly define a single unitary piece devoid of any fasteners which are separate from the fan cover, collar and air-conducting wall.
    • 本发明涉及一种具有由安装在壳体中的马达驱动的风扇叶轮的工作装置。 风扇盖覆盖风扇叶轮,并且限定了多个入口开口,其布置成格栅状图案,风扇叶轮向前,冷却空气的第一分量流通过风扇叶轮传递到风扇叶轮。 风扇罩具有形成在内壁表面上的内壁表面和套环。 导风壁安装在内壁表面上并且限定了与轴环内的空间连通的冷却通道,用于将冷却空气的第二组分流向风扇轮传导。 风扇盖和轴环与导气壁一起共同限定了一个没有任何与风扇盖,轴环和导气壁分离的紧固件的整体件。
    • 6. 发明授权
    • Centrifugal clutch
    • 离心离合器
    • US4819779A
    • 1989-04-11
    • US36016
    • 1987-04-08
    • Hans NickelMichael WissmannHorst Scholz
    • Hans NickelMichael WissmannHorst Scholz
    • F16D43/14B27B17/10F16D43/18
    • F16D43/18B27B17/10
    • A centrifugal clutch for use especially in a motor-driven chain saw. The clutch includes a carrier which is provided for attachment to a drive shaft and on which radially moveable centrifugal weights are mounted. The weights can move radially outwardly under centrifugal force and counter to spring force and come into contact engagement with the drum which is the output end of the clutch. A restraining device is provided between each centrifugal weight 2 and carrier 1 so that the engagement of the clutch does not occur until after an elevated speed has been reached. Disengagement of the clutch occurs as in known clutches somewhat above the idling speed. The restraining device is configured so that it does not clear the outward path of the centrifugal weight until a certain minimum centrifugal force has been exceeded. This has the effect that the clutch engages suddenly at mid range speeds and can transmit a very high initial torque to the output tool driven through the clutch.
    • 一种特别用于电动链锯的离心式离合器。 该离合器包括一个载体,该载体被设置用于附接到一个驱动轴上并且其上安装有可径向移动的离心重物。 重量可以在离心力和反作用力下径向向外移动,并与作为离合器输出端的滚筒接触。 在每个离心配重2和承载件1之间设有约束装置,使得离合器的接合直到达到高速之后才会发生。 离合器的脱离发生在已知的离合器中稍微高于空转速度。 限制装置构造成使得它不能清除离心重物的向外的路径,直到超过某一最小离心力。 这具有离合器在中速范围内突然接合并且可以将非常高的初始扭矩传递到通过离合器驱动的输出工具的效果。
    • 8. 发明授权
    • Current supply device for electrically heating a molten medium
    • 用于电加热熔融介质的电流供应装置
    • US4410998A
    • 1983-10-18
    • US265574
    • 1981-05-20
    • Fritz Germann, deceasedEduard KuntzReinhold MullerHorst Scholz
    • Fritz Germann, deceasedEduard KuntzReinhold MullerHorst Scholz
    • H05B3/00C03B5/027
    • H05B3/0023
    • A system for generating in-phase alternating current components which are fed into a medium held in a melting trough and flow in the medium between electrodes and counterelectrodes immersed in the medium to effect resistance heating. One embodiment of the system includes a supply voltage source, and a plurality of transformers each having a primary winding and a secondary winding, with the primary windings being connected together in series and to the source, each secondary winding being connected between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding having a number of turns corresponding to the desired relative amplitudes of the current components. A second embodiment of the system includes a supply voltage source, at least one input transformer having a primary winding connected to the source and at least one secondary winding, and a plurality of additional transformers each having a primary winding and a secondary winding, with the primary windings of the additional transformers being connected together in series and in a closed loop, each secondary winding of the input transformer being connected in series with at least one secondary winding of the additional transformers between a respective electrode and counterelectrode to provide a respective alternating current component, and each winding of the additional transformers having a number of turns corresponding to the desired relative amplitudes of the current components.
    • 一种用于产生同相交流分量的系统,其被馈送到保持在熔化槽中的介质中,并且在介于介质之间的介质中流动并浸没在介质中的反电极以实现电阻加热。 该系统的一个实施例包括电源电压源和多个具有初级绕组和次级绕组的变压器,其中初级绕组串联连接在一起并连接到源极,每个次级绕组连接在相应的电极和 反电极以提供相应的交流分量,并且每个绕组具有与当前分量的期望相对振幅相对应的匝数。 该系统的第二实施例包括电源电压源,至少一个输入变压器,其具有连接到源极和至少一个次级绕组的初级绕组,以及多个额外的变压器,每个具有初级绕组和次级绕组,其中 附加变压器的初级绕组串联连接在闭环中,输入变压器的每个次级绕组与相应电极和反电极之间的附加变压器的至少一个次级绕组串联连接,以提供相应的交流电 分量,并且附加变压器的每个绕组具有与当前分量的期望相对振幅相对应的匝数。