CONTROLLER AXIAL-PISTON HYDRAULIC UNIT Russian patent published in 1997 - IPC

FIELD: positive-displacement hydraulic drive. SUBSTANCE: the axes of the ports on the distributor end face surface facing the rear cover and the ports on the rear cover aligned with them are at the same distance from the axis of rotation of the distributor. The distance of the arcs, on which each of the ports is located, is less than the half of the circumference distance. The distances of the arcs, on which the ports on the distributor end face surface facing the rear cover are located are not less than the distances of the arcs, on which the jumpers between the aligned ports of the rear cover are located. The contacting end face surfaces of the distributor and rear cover are spherical ones with the center positioned on the axis of rotation of the distributor. EFFECT: expanded functional abilities. 3 cl, 5 dwg