CLUTCH PRESSURE CONTROL VALVE FOR A STARTING FRICTION CLUTCH, HYDRAULICALLY CONTROLLED, IN PARTICULAR FOR MOTOR VEHICLES

摘要

The invention relates to the control of FRICTION CLUTCHES OF MOTOR VEHICLES. The valve comprises a dolly which is lodged in a bore, and has two dowels 6, 7, the end of which is LOADED BY A LINEAR COMPRESSION SPRING AND A PRESSURE SIGNAL FUNCTION OF THE MOTOR SPEED, AND THAT ADJUSTS THE CLUTCH PRESSURE BY CONTROLLING AN OUTPUT LOCATED BETWEEN ITS TWO FLANGES. THE SECOND END OF THE LINEAR COMPRESSION SPRING 8 TAKES ON A PISTON 9 MOUNTED ON THE OTHER SIDE OF THE BOREHOUSE WITH THREE DIAMETERS 2, 3, 4. THIS PISTON IS CHARGED, ON ONE SIDE, BY THE PRESSURE SIGNAL PPITOT THAT IS FUNCTION OF THE MOTOR SPEED AND, ON THE OTHER SIDE, BY A NON-LINEAR COMPRESSION SPRING 11 THAT TAKES SUPPORT ON A SHOULDER 12 OF BORN 2, 3, 4 OF THE DISTRIBUTOR. / P