Download presentation
1
Fluid Couplings and Torque Converters
2
Introduction Engine and Transmission needs to be automatically coupled and uncoupled Uses Torque Converter to multiply torque and transmit power Components Impeller Turbine Stator
3
Fluid Coupling Fluid travels either in a rotary or vortex motion
4
Impeller turns Tubine Turbine Impeller
5
Fluid drives turbine at an angle
6
Difference in speed creates a turbulence
7
Components Flexplate drives T.C. Torque Converter Hub drives oil pump
Impeller drives Turbine Turbine drives input shaft Input shaft drives Clutch Hub
8
Vanes are curved to accelerate fluid flow
10
Rear Wheel Drive Input shaft directly connects to turbine with splines
Input shaft is usually hollow for lock up operation
11
Front Wheel Drive Turbine Shaft drives Input Shaft
12
Stator Operation Stator assembly mounts on One-way clutch.
Stator multiplies torque At 90% speed ratio, the stator rotates same speed as turbine and impeller and “coupling phase” occurs.
13
Early Converter were repairable
Older converters had drains
14
One Way Clutch
15
Chrysler TCC Release pressure disengages clutch plate
Venting pressure causes lock up
16
Ford Lock Up Clutch Piston hub splines directly to the turbine
17
GM TCC First used in 1980, Applied by TCC Solenoid
18
Vane curvature controls amount of multiplication
19
Converter Operation Stator redirects fluid back into impeller to multiply force More torque happens at lower rpms. At higher rpm, components equalize
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.