GF27.10-P-3021N Power Flow In 6th Gear, Function

GF27.10-P-3021N Power Flow in 6th Gear, Function
TRANSMISSION 722.9 in MODEL 171.4, 203, 230 up to Model Year 2008
TRANSMISSION 722.9 in MODEL 209, 211, 215, 219, 220
TRANSMISSION 722.9 in MODEL 463.303 /340 /341 up to 31.5.12





2 Turbine wheel
3 Stator
4 Impeller
5 Small internal-geared wheel
6 Dual planet carrier
7 Sun gear
8 Large internal-geared wheel
9 Internal gear
10 Planet carrier
11 Sun gear
12 Internal gear
13 Planet carrier
14 Sun gear
16 Torque converter lockup clutch

A Input
B Output
BR Multi-disk brake BR
B1 Multiple-disc brake B1
B2 Multiple-disc brake B2
B3 Multiple-disk brake B3
K1 Multi-disk clutch K1
K2 Multi-disk clutch K2
K3 Multi-disk clutch K3
PL2k Short planet gears
PL2l Long planet gears
PL6 Planet gears
PL9 Planet gears

The Ravigneaux gear set consists of the following components:
^ Short planet gears (PL2k)
^ Long planet gears (PL2l)
^ Small internal-geared wheel (5)
^ Dual planet carrier (6)
^ Sun gear (7)
^ Large internal-geared wheel (8)

The single front planetary gear system consists of the following components:
^ Planet gears (PL9)
^ Internal-geared wheel (12)
^ Planet carrier (13)
^ Sun gear (14)

The single rear planetary gear system consists of the following components:
^ Planet gears (PL6)
^ Internal-geared wheel (9)
^ Planet carrier (10)
^ Sun gear (11)

Power flow in 6th gear, function
The following multi-disk brakes and multi-disk clutches are engaged:
^ Multi-disk brake B1 (B1)
^ Multi-disk clutch K2 (K2)
^ Multi-disk clutch K3 (K3)

Ravigneaux gear set
The small internal-geared wheel (5) is driven by the transmission input shaft. The long planet gears (PL2l) roll over the stalled sun gear (7) and transmit the increased torque and reduced rotational speed as a result to the dual planet carrier (6).

Rear single planetary gear system
The internal-geared wheel (9) rotates at the same speed due to the mechanical connection to the dual planet carrier (6). The planet gears (PL6) transmit the rotary motion to the sun gear (11).

Sun gear (11) passes on the rotational speed to sun gear (14) via the closed multi-disk clutch K3 (K3).

Single front planetary gear system
The transmission input torque and transmission input speed are transmitted to the internal-geared wheel (12) by the closed multi- disk clutch K2 (K2). An increased rpm and a reduced torque occurs due to the rpm difference between the sun gear (14) and the ring gear (12). These are passed on via the planet carrier (13) to the transmission output shaft.

The transmission output shaft therefore rotates in the direction of rotation of the engine at reduced rpm relative to the transmission input shaft.