TELESKOPIC CYLINDERS

Telescopic single-acting rectilinear hydroengines are designed for tilt of lorry's hull, trailers and other machines. They are consisted of cylinder and concentrically arranged pistons. Every piston is a cylinder for piston, which has smaller diameter too. Total stroke of hydroengine is equal to sum of all strokes of each piston. Working stroke is made by medium (hydraulic oil), reciprocating motion is done by self weight of the hull or by other outer weight.

Telescopic rectilinear hydroengine has to be built-in to be encumbered by axial power only. In retracted position it musn't transfer the weight of hull or other weight on the vehicle frame. In hydraulic curcuit has to be built-in safety-valve against overshoot the operating pressure.