Mechanical Design of the Transmissions

4 Speed Transmission
1. Impeller
2. Turbine wheel
3. Reactor
4. Freewheel
5. Input shaft
6. Stator shaft
10. Brake band B1
12. Ravigneaux planet gear set
15. Brake band B2
18. Rear planet gear set
20. Output shaft
28. Clutch K2
29. Freewheel
30. Multiple-disc brake B3
31. Clutch K1

The mechanical section of the automatic transmission has a planet gear train in two group design.
The front group is a Ravigneaux planet gear set while the rear group is a single planet gear set.
The individual transmission elements are connected as follows:
- Turbine wheel (2) of the torque convertor through the input shaft (5) to the large sunwheel of the Ravigneaux planet gear set (12).
- Planet carrier of the Ravigneaux planet gear set (12) to the internally-toothed disc carrier of clutch K1 (31), the internally-toothed disc carrier of the multiple-disc brake B3 (30) and to the annulus of the fear planet gear set (18).
- Brake band drum of brake band B1 (10) and externally-toothed disc carrier of clutch K1 (31) to the small sunwheel of the Ravigneaux planet gear set (12).
- Annulus of the Ravigneaux planet gear set (12) through the connection carrier to the outer ring of the freewheel F1 (29) and to the internally-toothed disc carrier of clutch K2 (28).
- Brake band drum of brake band B2 (15), externally-toothed disc carrier of clutch K2 (28) and inner ring of freewheel F1 (29) to the sunwheel of the roar planet gear bet (18).
- Planet carrier of the rear planet gear set (18) to the output shaft (20).





5-speed transmission
1. Impeller
2. Turbine wheel
3. Reactor
4. Freewheel
5. Input shaft
10. Brake band B1
12. Ravigneaux planet gear set
13. Middle planet gear set
15. Brake band B2
16. Intermediate shaft
18. Rear planet gear set
20. Output shaft
24. Freewheel F2
25. Clutch KS
26. Brake BS
28. Clutch K2
29. Freewheel
30. Multiple-disc brake B3
31. Clutch K1

The mechanical section of the 5-speed automatic transmission has a planet gear train in three-group design. The front group is a Ravigneaux planet gear set while the middle and rear groups are each a single planet gear set. The individual transmission elements are connected as follows:
- Turbine wheel of the torque converter through the input shalt (5) to the large sunwheel of the Ravigneaux planet gear set (12).
- Planet carrier of the Ravigneaux planet gear set (12) to the internally-toothed disc carrier of clutch K1 (31), internally-toothed disc carrier of the multiple-disc brake 63 (30) and to the annulus of the middle planet gear set (13).
- Brake band drum of brake band B1 (10) and externally-toothed disc carrier of clutch K1 (31) to the small sunwheel of the Ravigneaux planet gear sot (12).
- Annulus of the Ravigneaux planet gear set (12) through the connection carrier to the outer ring of the freewheel F1(29) and to the internally-toothed disc carrier of clutch K2 (28).
- Brake band drum of brake band B2 (15), externally-toothed disc carrier of clutch K2 (28) and inner ring of freewheel F1 (29) to the sunwheel of the middle planet gear set (13).
- Planet carrier of the middle planet gear set (13) and of the rear planet gear set (18) to the intermediate shaft (16).
- Externally-toothed disc carrier of clutch KS (25) to the inner ring of the freewheel F2 (24) and to the sunwheel of the rear planet gear set (18).
- Disc, carrier of clutch KS (25) to the annulus of the rear planet gear set (18) and to the output shaft (20).