Radial piston hydraulic motor and method of controlling the radial piston hydraulic motor

摘要

A radial piston hydraulic motor comprising: a cam ring (11) and pistons (13a1, 13a2 ...) accommodated in a piston housing (12), which have pressure rollers (14a1, 14a2 ...) displaced by the pressure of a hydraulic medium against an inner surface (11 '; ) of the cam ring (11) are printable, wherein the piston housing (12) is connected to a central axis (17), and a distributor valve (18) is provided which has bores (23) through which the piston (13a1, 13a2 .. .) Hydraulic medium and can be continued therefrom, the device solution having a working pressure inlet channel (B) for a hydraulic medium and a drainage channel (A) for non-working pressure hydraulic medium, characterized in that in the radial piston hydraulic motor (100) a freewheel valve (50) is installed, which has a in a slide valve chamber (20) movable slide valve (19) which can lock the inlet channel (B) and the outlet channel (A) in the freewheeling state, wherein in freewheeling tand springs (U1, U2 ...) the pistons (13a1, 13a2 ...) and their pressure rollers (14a1, 14a2 ...) in a lower position and the cam ring (11) los print, wherein the slide valve (19) by a in the slide valve chamber (20) accommodated spring (21) and in one of a in the slide valve chamber (20) opening hydraulic medium channel (C) supplied control pressure, which counteracts the spring force of this spring (21), can be actuated.