Analysis Based On Internal Characteristics Of Torque Converter Efficiency

By the unique superiority of Torque Converter at Automobile manufacture, Engineering machinery, Mining machinery, Petroleum, Chemical industry, Metallurgy, War industry obtained the widespread application.The simplest torque converter is consisted of pump wheel, Turbineand Guide pulley. Pump wheel, Turbine, and Guide pulley is called work round. By the engine-driven pump wheel so that the liquid flow in the flow. The mechanical energy can be converted into liquid(Mainly kinetic energy, followed by pressure energy), the liquid which obtain liquid energy from the export of high-speed into the turbine pump round the entrance and the flow.,out by the turbine exit. In this process,the energy transfer to the turbine.turbine output torque.Driven load, and its output torque and speed can change automatically as the load changes accordingly. The liquid from the turbine. (At this point energy is lower), then into the non-rotating guide wheel which together with the rack, flow direction by the guide pulley and later transform into the pump wheel. The import and export point of pump wheel, turbine, guide pulley of Torque converter is very important. The internal characteristics of the torque converter. External characteristics and efficiency of its transmission has played a crucial role. Therefore, different conditions needed to be analyzed in the internal torque converter flow field,.Identify the main factors affecting its efficiency. In this passage, three main conditions of the torque converter is calculated. Three conditions are the start condition(transmission ratio is 0), intermediate condition (transmission ratio is 0.4), the most efficient condition (transmission ratio is 0.8). Formula is calculated by combining the pump wheel speed value of imports calculated,the export of impeller pressure is calculated by CFD software, using the pressure conditions of exports and the velocity of imports.to simulate the three working round the flow field Respectively.Through the simulation of velocity vector and pressure cloud of the internal flow field to analysis the internal flow field. Analysis on the efficiency of hydraulic torque converter where the main factors is.Using the basic theory of fluid mechanics, analysis the performance of the torque converter. Derive the basic calculation d relationship. Using 3D modeling software pro/e on the whole torque converter modeling. And three rounds of the flow of work to model respectively. Channel model will be built by fluent software for its internal flow simulation.