Hydraulic torque converter for power train of motor vehicle, has friction linings between pair of chambers, with friction surfaces comprising grooves and throttling orifice to resist fluid flow

摘要

The friction linings (22,23) arranged between the chambers (30,32) of casing (3) has friction surfaces (25,26) provided with grooves (36,37) and throttling orifice (40) to resist flow of hydraulic fluid in bypass clutch (20) in engaged condition. An Independent claim is included for hydrodynamic torque converter for use between a rotary output element of prime mover and rotary input element coaxial with output element and forming portion of change-speed transmissions, particularly is power train of motor vehicle.