HYDRAULIC MOTOR Russian patent published in 1998 - IPC

FIELD: driving various mechanisms; fluid-powered machines. SUBSTANCE: hydraulic motor has stator with internal toothed rim that accommodates rotor 4 forming working chambers and provided with external toothed rim , as well as end plates 5 and 7 contacting butt ends of stator and provided with working medium inlet and outlet channels 8,9, and set of dispensing channels 12. Slots measuring in width 2.2-2.4 of tooth radius of rotor 4 and in length not over 0.5 of width of rotor 4 are formed in valleys between teeth of rotor rim. Set of dispensing channels is made in spring-loaded disks 11 arranged in coaxial manner in end plates 6 and 7 for axial displacement which contact end surface of rotor 4 enabling compensation for relative wear of end surfaces of disk 11 and rotor 4. EFFECT: improved service life , operating hours, and repairability of motor. 3 dwg