fluid couplings and torque converters chapter 5 classroom manual
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![Page 1: Fluid Couplings and Torque Converters Chapter 5 Classroom Manual](https://reader035.vdocuments.net/reader035/viewer/2022062304/56649d6c5503460f94a4b28d/html5/thumbnails/1.jpg)
Fluid Couplings and
Torque Converters
Chapter 5
Classroom Manual
![Page 2: Fluid Couplings and Torque Converters Chapter 5 Classroom Manual](https://reader035.vdocuments.net/reader035/viewer/2022062304/56649d6c5503460f94a4b28d/html5/thumbnails/2.jpg)
Introduction
Engine and Transmission needs to be automatically coupled and uncoupledUses Torque Converter to multiply torque and transmit powerComponents ImpellerTurbineStator
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Fluid Coupling
Fluid travels either in a rotary or vortex motion
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Impeller turns Tubine
Impeller
Turbine
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Fluid drives turbine at an angle
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Difference in speed creates a turbulence
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Components
Flexplate drives T.C.Torque Converter Hub drives oil pumpImpeller drives TurbineTurbine drives input shaftInput shaft drives Clutch Hub
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Vanes are curved to accelerate fluid flow
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![Page 10: Fluid Couplings and Torque Converters Chapter 5 Classroom Manual](https://reader035.vdocuments.net/reader035/viewer/2022062304/56649d6c5503460f94a4b28d/html5/thumbnails/10.jpg)
Rear Wheel Drive
Input shaft directly connects to turbine with splines
Input shaft is usually hollow for lock up operation
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Front Wheel Drive
Turbine Shaft drives Input Shaft
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Stator Operation
•Stator assembly mounts on One-way clutch.•Stator multiplies torque•At 90% speed ratio, the statorrotates same speed as turbine and impeller and “coupling phase”occurs.
Pg 90C
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Early Converter were repairable
Older converters had drains
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One Way Clutch
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Chrysler TCC
Page 94C
Release pressure disengages clutch plateVenting pressure causes lock up
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Ford Lock Up
Clutch Piston hub splines directly tothe turbine
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GM TCC
First used in 1980, Applied by TCC Solenoid
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Vane curvature controls amount of multiplication
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Converter Operation
Stator redirects fluid back into impeller to multiply force
More torque happens at lower rpms.
At higher rpm, components equalize
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