Power Flow In 4TH Gear

Component Illustration:

Principle Of Power Flow In 4th Gear:
Speed and torque are not converted by the direct gear ratio of the 4th gear (1 = 1). Power is transferred from the propeller shaft (1) to the output shaft (5) via three locked planetary gearsets (5).

Front Planetary Gearset:
The planet carrier (V3) and sun gear (V1) are connected via the engaged multiple-disc dutch K1. The planetary gearset is therefore locked and turns as a closed unit at the input speed due to the mechanical connection of the ring gear (V4) and the propeller shaft (1).

Rear Planetary Gearset:
The multiple-disc clutch K2 is engaged and transfers the input speed of the propeller shaft (1) to the planet carrier (H3) via the ring gear (M4). The ring gear (H4) turns in the same way as the planet carrier (H3) due to the mechanical connection with the locked front planetary gearset. The planetary gearset is therefore locked and turns as a closed unit.

Center Planetary Gearset:
The ring gear (M4) turns at the input speed as a result of the engaged multiple-disc dutch K2. The multiple-disc dutch K3 connects the sun gears (M1) and (H1) of the rear and center planetary gearset. The planetary gearset is locked by the same speeds of the ring gear (M4) and the sun gear (M1) and it turns as a closed unit.

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