Constructive Design

A torque converter is used as starting element for the 9HP because the customers, particularly in the USA and the Asian markets, esteem its high maneuvering quality. In order to minimize hydraulic losses, different damping systems are used so that the torque converter lock-up clutch can already be closed at low speeds. Various damping characteristics can be realized in order to ensure an optimal adjustment to the respective engine.

Transmission cross-sectional view 9HP

The housing consists of two essential parts: a converter housing and a main housing with an aluminum cover. By default, the 9HP is connected to the vehicle radiator via pipes, and a transmission cooler can optionally be attached directly to the housing.

Power-to-weight ration compared

With regard to the transmission length and the weight of the basic model, a competitive comparison shows that despite the mechanical expenditure for 9 gears and the higher torque load of the components through the greater range of gear spreads, a compact package with an excellent power-to-weight ratio can be achieved.