DISTRIBUTOR OF HYDRAULIC BOOSTER OF TRANSPORT FACILITY STEERING GEAR Russian patent published in 1999 - IPC

FIELD: distributor of hydraulic boosters. SUBSTANCE: distributor has housing with working fluid delivery and drain passages and passages for connection with working chambers of hydraulic booster, sleeve embracing the output shaft and having passages for delivery of working fluid to working edges of distributor and to passages of housing, output shaft with axial holes and set of through radial cylindrical holes over circumference, input shaft with axial hole and set of radial cylindrical holes over circumference; input shaft is received by hole in output shaft and is connected with it by means of torsion bar; distributor includes also intermediate bush mounted in axial hole of input shaft and provided with set of alternating radial through and blind holes over circumference. Crossing edges of holes of input and output shafts form main loop of distributor and crossing edges of holes of input shaft and intermediate bush form additional loop of air distributor. Segment stops mounted in transversal opposite slots of output and input shafts are used to immovably connected shaft and intermediate bush with input shaft for limited angular motion relative to output shaft and intermediate bush. EFFECT: reduced overall dimensions; improved characteristics pertaining to servo action. 3 cl, 6 dwg