Abstract: A lockable differential has one positive-fit clutch (12) actuatable in the opening and closing directions by displacement of a sliding sleeve (4), the sliding sleeve (4) being actuatable by a co-axially disposed piston (15).

Abstract: A lockable differential has one positive-fit clutch (12) actuatable in the opening and closing directions by displacement of a sliding sleeve (4), the sliding sleeve (4) being actuatable by a co-axially disposed piston (15).

Abstract: Proposed is a locking differential drive, in which, between a first side of a differential cage (3) and a cover (4) a crown wheel (2) is located, which is turnably connected with the cover (4) and the differential cage (3), and the radial extent of which crown wheel (2) is less than that of the opening (9) of the differential cage (3), which said opening serves for the installation of differential bevel gears (10, 11). The crown wheel (2) exhibits two contact faces, of which a first contact face (7) serves as a seat for a clutch (6) of an externally lockable differential drive and a second contact face (8) serves as a seat for a clutch (17) of a self-actuating lockable differential drive. In this way, the same crown wheel (2) and the same differential cage (3) can be employed both for an externally lockable differential drive as well as a self actuating differential drive.

Abstract: The invention concerns a drive control for motor and utility vehicles. The speeds of the wheels and the steering angle are measured by means of sensors. Driving axle slip is determined by comparing the average peripheral wheel speeds of the driven and non driven axles and by taking into account the steering geometry. Driving force and finally chassis efficiency are determined by the slip with the assistance of standard characteristic lines. The efficiencies of all-wheel drive and rear-wheel drive are compared. The drive with the higher degree of efficiency is engaged.

Abstract: A steering axle with hydrostatic two-circuit steering system for agricultural, forestry and construction vehicles. The steering axle includes a first double-acting pressure medium cylinder (1) which in the area of its center is connected with an axle bridge housing (2) and at its two ends with joint housings (4, 5) via tie bars (3) and an additional second double-acting pressure medium cylinder (6) which is mounted on one side of the axle. The second cylinder acts simultaneously together with the first pressure medium cylinder (1). In this manner a two-circuit steering system is obtained. At the same time said second double-acting pressure medium cylinder (6) is connected at one end via a ball joint (7) with a joint housing (5) and at the other end is fastened on the axle bridge housing (2).

Abstract: A steering angle limiter is built into an auxiliary power steering mechanism wherein the limits of steering can be variably preset to any predetermined degree within limits in a continuous manner. The limiter is a device built into the power cylinder. Such device comprises a mechanism having threaded telescopic members. One member is axially fixed and manually rotatable by a tool exteriorally of the cylinder to axially shift the other member to a predetermined distance from a respective end of the power piston. The other member may be non-rotative and threaded to the first member or it may be rotative but threaded to the housing. In either event, it is guided for axial movement. The axial setting of the other member effects a limit stop or abutment for the moving piston for such distance of movement as desired to limit the steering angle of the vehicle wheels in a particular direction of steering. For a double acting cylinder a steering limiter as described is provided for each end of the cylinder.