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1.一般原理在液力传动装置中,由一个作为工作机的离心泵轮和一个作为动力机的涡轮紧凑地组装在一个轮形壳体内。因此,可以在最短距离内,通过工作液体而实现此两工作轮之间的能量传递。此两工作轮如果分开使用,就会有传动损失和流动损失;这样的损失,在这里就大大地被排除了。因为在这样的传动箱中,(水力)械机既是工作机,又是动力机,故这些水力机械所固有的全部规律,也适用于液力传动。根据水力学的冲量矩定律,稳定的和不可压缩的液流对叶轮作用的扭矩Mh的大小为
1. General Principle In a hydrodynamic transmission, a centrifugal pump wheel as a working machine and a turbine as a power machine are compactly assembled in a wheel housing. Therefore, the energy transfer between the work wheels can be achieved by the working fluid within the shortest distance. If these two working rounds are used separately, there will be drive losses and loss of movement; such losses are largely ruled out here. Because in such a gearbox the (hydraulic) machine is both a working machine and a power machine, all of the inherent laws of these machines are also applicable to hydraulic drives. According to the hydraulic moment of momentum law, the magnitude of the torque Mh acting on the impeller by the steady and incompressible flow is