Fluid torque converter

DETAILED DESCRIPTION Therefore, an object of the present invention is to provide a fluid torque converter, which is able to absorb and alleviate a shock occurring when a direct-coupling clutch is put in a coupled state, and which has a high durability.
Another object of the present invention is to provide a fluid torque converter for vehicles of the kind having a pump wheel connected to an engine and a turbine wheel connected to a driving wheel, wherein the pump and turbine wheels are connected together mechanically in a clutch-operated region to transmit power from the engine to a driving wheel, i.
e.
from the pump wheel to the turbine wheel; and the mechanical connection between the pump wheel and turbine wheel is cut off automatically to shift the mechanical transmission to a fluid transmission when the vehicle is decelerated or run by an inertia force, thus enabling economical running of the vehicle with much less amount of fuel than a vehicle employing a conventional fluid torque converter of this kind and alleviating a shock occurring upon deceleration of the vehicle.
The above and other objects as well as advantageous features of the invention will become apparent from the following description of the preferred embodiment taken in conjunction with the accompanying drawings.