manual transmission in automotive

Manual Transmission System

SIR C.R REDDY COLLEGE OF ENGINEERING, ELURU

K.S. Saran Kumar(315277133004)

M.E (Machine Design)

Contents

• Introduction• Types of Transmission• Types of Gear Box• Fabrication• Working• Conclusion

Introduction

The word ‘Transmission’ means the whole of the mechanism that transmits the power from the engine crankshaft to the rear wheels, providing the suitable variations of the engine torque at the road wheels, whenever required.

Transmission...

Types of Transmission

• Manual transmission

• Fully automatic Transmission

• Semi-Automatic Transmission

Manual Transmission

Components:

– Clutch– Gearbox– Differential

Gear Ratio• It is the ratio of the no. of teeth on the driver wheel to

no. of teeth on the driven wheel or the speed of rotation of the driver to the driven .

For example: Gear ratio, G=(10/20) = 1:2 (smaller gear is the driven)

20 Teeth

10 Teeth

Gear Box...

Types of Gearbox

• Constant mesh type (Manual)

• Synchromesh type (Brass ring)

• Sliding mesh type (Automatic)

Constant Mesh Type

Cross- Sectional view

Dog Gear

Synchromesh typeGearbox

Synchro collar

First Gear

Second Gear

Third Gear

Fourth Gear

Reverse Gear

Conclusion

Now a days , By using the Brass synchronised ring the wearing effect in transmission is reduced.

QUERIES ???

Thank You...