Viscous fluid type heat generator with means for enhancing heat transfer
efficiency
    1.
    发明授权
    Viscous fluid type heat generator with means for enhancing heat transfer efficiency 失效
    粘性流体式发热器,具有提高传热效率的手段

    公开(公告)号:US5881683A

    公开(公告)日:1999-03-16

    申请号:US41268

    申请日:1998-03-12

    IPC分类号: B60H1/08 F24J3/00 F22B3/06

    CPC分类号: F24J3/003

    摘要: A viscous fluid type heat generator which includes a housing assembly defining a heat generating chamber and a heat receiving chamber arranged adjacent to the heat generating chamber via a partition wall disposed therebetween. A rotor element is mounted to be rotated by a drive shaft for rotation within the heat generating chamber. A viscous fluid is held in a gap defined between the inner wall surfaces of the heat generating chamber and the outer faces of the rotor element, for heat generation under shearing stress applied by the rotation of the rotor element. A heat exchanging fluid circulates through the heat receiving chamber to receive heat transferred through the partition wall from the heat generating chamber. A plurality of grooves, protuberances or expression are formed on at least one of the inner wall surfaces of the heat generating chamber to increase the total heat transfer surface area in the inner wall surfaces, and thus enhance a heat transfer efficiency through the partition wall. The density of arrangement of the grooves in the outer peripheral area of the inner wall surface is larger than that in the inner peripheral area of the inner wall surface.

    摘要翻译: 一种粘性流体型热发生器,其包括限定发热室的壳体组件和经由设置在其间的间隔壁布置在发热室附近的热接收室。 转子元件安装成由驱动轴旋转以在发热室内旋转。 粘性流体被保持在限定在发热室的内壁表面和转子元件的外表面之间的间隙中,用于通过转子元件的旋转施加的剪切应力下的发热。 热交换流体通过热接收室循环以接收从发热室通过分隔壁传递的热量。 在发热室的内壁面的至少一个上形成有多个槽,突起或表面,以增加内壁表面的总传热面积,从而提高通过隔壁的传热效率。 内壁面的外周面的槽的配置密度大于内壁面的内周面的密度。

    Rotating apparatus with a torque limiter function
    2.
    发明授权
    Rotating apparatus with a torque limiter function 有权
    具有扭矩限制功能的旋转装置

    公开(公告)号:US07311625B2

    公开(公告)日:2007-12-25

    申请号:US10755681

    申请日:2004-01-13

    IPC分类号: F16H61/00

    CPC分类号: F16D9/08

    摘要: A screw engagement portion between a pulley and a shaft is provided with a thread in a direction to increase the tightening torque when the pulley is driven. A breakable part broken by the axial tension produced when the tightening torque acting on the screw engagement portion is above a predetermined value, is also provided. The stress to break the breakable part is mainly a tensile stress. The tensile stress is substantially uniformly distributed in a cross section and, hence, the stress distribution of the breakable part can be relatively precisely predicted and analyzed. Consequently, the necessity of determining aspects of the breakable part, such as dimension, material, and the like, by trial and error is reduced. The breakable part can be broken without being subject to fatigue fracture.

    摘要翻译: 在滑轮和轴之间的螺钉接合部分在带轮被驱动时沿着增加紧固扭矩的方向设置有螺纹。 还提供了当作用在螺钉接合部上的紧固扭矩高于预定值时产生的由轴向张力破坏的可破坏部分。 断裂部位的应力主要是拉伸应力。 拉伸应力基本均匀地分布在横截面中,因此可以相对精确地预测和分析可破坏部分的应力分布。 因此,减少了通过试错法确定易损件的尺寸,材料等的各方面的必要性。 易断裂的部件不会发生疲劳断裂。