Abstract:
In a hydrostatic drive one hydrostatic machine (2 and 4) is adapted for absorbing the sustained braking power or energy. The transmission is furthermore provided with a cooler (9) whose two sides are respectively connected via a threshold pressure valve (7 and 8) with one of two branch ducts (3 and 5) which connect the said hydrostatic machine with a second such machine adapted to act as a drive. The pressure threshold valve is made up of a pressure limiting and check valve.
Abstract:
Articulated bus having a two-axle leading car and a single-axle trailing car. The leading car has a driving axle which is driven alternatively by an internal-combustion engine arranged in the trailing car and an electric motor arranged in the leading car.
Abstract:
A multiple-power gear drive transmission comprising a planetary differential gear drive including a plurality of drive elements such as sun gear, web gear and internal gear. A gear drive input shaft is connected with at least one of the drive elements; a gear drive output shaft is connected with another of the drive elements; a first positive-displacement machine operable in both directions as pump or motor is coupled to a third of the drive elements for controlling the direction of rotation and speed of rotation thereof; and a second positive-displacement machine operable as a pump or motor is energy-transmissively coupled with the first positive-displacement machine. The planetary differential gear drive includes two of the sun gears which have different diameters; on web gear being arranged dual planetary gears, the gears thereof meshing with the sun gears and with an internal gear wherein the larger sun gear is connected with the gear drive input shaft. Shift couplings selectively connect the second positive-displacement machine in dependence upon the speed of rotation of the gear drive output shaft with either the gear drive output shaft or with the smaller sun gear.
Abstract:
A cam actuated brake adjuster reduces automatically the clearance between the brake lining and the brake drum which exists when the brakes are released, if this clearance exceeds a predetermined value. A one-way drive mechanism which adjusts the angular position of a camshaft with the aid of a worm gear is actuated by an adjusting rod assembly, which yields to a given adjusting force corresponding to a given brake force, to prevent an excessive adjustment which might result from a drum distortion caused by the application of a great braking force.