VEHICLE STEERING MECHANISM WITH HYDRAULIC BOOSTER Russian patent published in 2008 - IPC B62D3/02 

FIELD: transport engineering; power-assisted steering mechanisms.

SUBSTANCE: proposed steering mechanism with hydraulic booster has case with row of threaded holes on side end faces and rack, sector and side covers. Rack is mechanically coupled by screw with steering shaft. Sector shaft is installed in bearings. Case accommodates also eccentric adjusting bushings. Center of bushings is displaced relative to center of holes for bearings of sector shaft through value of eccentricity. Side covers are provided with projections of axes of symmetry for engagement with slots made on round beads found on outer end faces of eccentric bushings. Round fastening slots are made on side covers. Said round slots on side covers on length L equal to or greater than summary value of distance S between threaded holes on side end faces of case arranged near each other and diameter D of threaded holes (L≥S+D).

EFFECT: improved accuracy of adjustment of backlash in piston-rack and sector meshing, reduced hydraulic play and summary play in steering gear in term of angular displacement of steering wheel.

2 dwg