A steering system for an articulated truck, formed of a tractor, a trailer and an articulation joint, includes a hydraulic cylinder 300 with a cylinder barrel 310 and a piston 350 for providing a change in angle between the tractor and the trailer. Hydraulic cylinder 300 includes a snubbing tube 330 projecting into barrel 310, with a hydraulic fluid passage 316 opening into barrel 310 within snubbing tube 330. The piston has an aperture 360 in a piston face 352 for receiving snubbing tube 330. Snubbing tube 330 includes a main slot and a plurality of channels each extending between an interior and an exterior of the snubbing tube, each channel having a cross sectional area smaller than a cross sectional area of the main slot. A further fluid passage 320, which may have a check valve 322, may be provided in a closed end of barrel 310 outside snubbing tube 330.
Articulated truck steering
2021-11-03
Patent
Elektronische Ressource
Englisch