ABSTRACT
In order for a fluid coupling to function there must be a difference in rotational speed between the impeller and the turbine; as the speed of the turbine begins to approach that of the impeller the pumping action of
to Motor Vehicle
the impeller becomes weak and the turbine will start to slow down. This results in an unavoidable amount of slip, which results in a difference in speed between the two members of 4e5%. In some applications a friction clutch of the type shown in Fig. 19.4 is added to the torque converter to overcome the problem of slip.
