Drivetrain for use in e.g. industrial truck, has fluid motor comprising non-uniform torque curve, where non-uniformity of torque of fluid motor is adjusted to non-uniformity of starting torque of engine

摘要

The drivetrain (1) has a fluid pressure storage (8) provided for a combustion engine (2), where the combustion engine comprises a rotational torque coefficient for starting cyclic variation exhibiting start rotational torque at a crankshaft (5). A fluid motor (7) i.e. hydrostatic motor or pneumatic motor, comprises a non-uniform torque curve, where non-uniformity of the torque of the fluid motor is adjusted to the non-uniformity of starting torque of the engine. The fluid motor produces increased rotational torque over rotational angle in a reduced angle of rotation. The fluid motor is designed as an axial-piston motor, inner-acted upon radial piston motor or outer-acted upon radial piston motor.