GF27.10-P-3026AHW Power Flow In 7th Gear, Function

GF27.10-P-3026AHW Power Flow in 7th Gear, Function
TRANSMISSION 722.9 (except 722.930) in MODEL 204.0 as of model year 2009 /YoM 08
TRANSMISSION 722.9 (except 722.930) in MODEL 204.2 as of model year 2009 /YoM 08
TRANSMISSION 722.9 (except 722.930) in MODEL 204.3
TRANSMISSION 722.9 in MODEL 204.9





2 Turbine wheel
3 Stator
4 Impeller
5 Small ring gear
6 Dual planet carrier
7 Sun gear
8 Large ring gear
9 Ring gear
10 Planet carrier
11 Sun gear
12 Ring gear
13 Planet carrier
14 Sun gear
16 Torque converter lockup clutch
41 Multidisk brake BR
42 Multidisk brake B1
43 Multidisk brake B2
45 Multidisk brake B3
46 Multidisk clutch K1
47 Multidisk clutch K2
48 Multidisk clutch K3
49 Short planetary gears
50 Long planetary gears
51 Planetary gears
52 Planetary gears

A Input
B Output

Function requirements for power flow in 7th gear, general
^ Circuit 87 (connected circuit 15) ON
^ Engine running

Power flow in 7th gear, general
The following multidisk brakes and multidisk clutches are engaged:
- Multidisk brake B3 (45)
- Multidisk clutch K2 (47)
- Multidisk clutch K3 (48)

In 7th gear, the power flows through the following gear sets:
^ Ravigneaux gear set
^ Rear single planetary gear set
^ Front single planetary gear set

Ravigneaux gear set
The small ring gear (5) is driven via the transmission input shaft. The long planetary gears (50) drive the short planetary gears (49) which roll in the stalled large ring gear (8). The increased torque and reduced rotational speed as a result are transmitted to the dual planet carrier (6).

Rear single planetary gear set
The ring gear (9) rotates at the same speed due to the mechanical connection to the dual planet carrier (6). The planetary gears (51) transmit the rotary motion to the sun gear (11). Sun gear (11) passes on the rotational speed to sun gear (14) via the closed multidisk clutch K3 (48).

Front single planetary gear set
The transmission input torque and transmission input speed are transmitted to the ring gear (12) by the closed multidisk clutch K2 (47). The speed difference between the sun gear (14) and ring gear (12) results in a speed increase and torque reduction. These are passed on via the planet carrier (13) to the transmission output shaft. The transmission output shaft thus rotates with reduced transmission input speed in the direction of rotation of the engine.