Arrangement for sliding elements of machines

摘要

A piston (7) moving under pressure of a hydraulic fluid in a chamber (6) carries a socket (10) on its ball head (9). The surface (11) of the socket slides on the surface (3) of a plate (2) pushing the plate forward. A combination of grooves (17,18) on the piston surface and channels (13,14,15,16) in the piston and the socket supplies a system of notches (12) on the sliding surface of the socket with hydraulic fluid. The dimension of the notches in the sliding is such that the total area (D) supported by the fluid is larger than the area (8) of the piston under fluid pressure in the chamber. The system of notches can well be substituted by reamed area if it satisfies above mentioned condition.