Chapter 16 Vehicle automatic transmission 同©大学 TONGII UNIVERSTTY The structure of fluid coupling >There is no mechanical connection between the impeller and the turbine, impeller turbine which are called as running wheel f and rely on the flowing fluid to transmit the power. flow direction >There are many vanes arranged along the radial direction of the annular shell composed by the running wheel.The working fluid is stored in the annular shell. >After assembled,there is a certain gap (3~4mm)between the impeller and the turbine,the longitudinal section through the axis is annular,which is called as circular circle.环形环Chapter 16 Vehicle automatic transmission The structure of fluid coupling There is no mechanical connection between the impeller and the turbine , which are called as running wheel 工作 轮and rely on the flowing fluid to transmit the power. There are many vanes arranged along the radial direction of the annular shell composed by the running wheel. The working fluid is stored in the annular shell. After assembled, there is a certain gap (3~4mm) between the impeller and the turbine, the longitudinal section through the axis is annular, which is called as circular circle环形环