SELF-LOCKING DIFFERENTIAL WITH HYDRAULIC RESISTANCE Russian patent published in 2016 - IPC F16H48/26 

FIELD: transport.

SUBSTANCE: claimed differential comprises axles gears arranged in the differential housing to engage with the pinions and the locking device for coupling between the differential hosing and the axles gears. The locking device is composed of the vaned reversible hydropump with the stator, rotor, vanes with springs, distribution disc, cover, check valves, suction, delivery and discharge channels. It incorporates two differential locking valves arranged in axial bores upstream of check valves, between the stator delivery channels and discharge channels. Each of said valves consists of the piston with cylindrical con rod and return compression spring fitted thereon, piston bottom facing the stator delivery channel. Rod diameter equals the discharge channel diameter to shut off said channel.

EFFECT: improved locking properties, higher efficiency.

2 dwg