Hydrodynamic torque converter used in a fork truck

The utility model relates to a hydrodynamic torque converter used in a fork truck. The torque converter comprises a cover wheel component, a turbine component, an impeller component and a guide wheel component; the cover wheel component includes a cover wheel hub and a cover wheel casing; the turbine component includes a turbine hub and a turbine body; the impeller component includes an impeller hub and an impeller body; the guide wheel component includes a front guard ring, a rear guard ring and a guide wheel body; a three-enclosing-piece bearing, a thrust piece and a ball bearing are disposed every space between the cover wheel hub and the turbine hub, between the turbine hub and the front guard ring, and between the rear guard ring and the impeller hub; the bearing between the cover wheel hub and the turbine hub is a three-enclosing-piece bearing; a three-enclosing-piece bearing is disposed between the turbine hub and the front guard ring; a three-enclosing-piece bearing is disposed between the rear guard ring and the impeller hub; and a three-enclosing-piece bearing is disposed between the rear guard ring and the ball bearing, The utility model solves the technology problems of reasonable inside positioning, serious wearing and noises existing in current hydrodynamic torque converters used in fork trucks; and achieves the advantages of low fuel consumption, low noise and large torque.