Agricultural machine for creating cylindrical straw bales is fitted with pressurized fluid supply system and has fluid bypass valve with tension adjustable spring reset

摘要

Supply system has pressurized fluid generator (2), first (3) and second (4) receivers placed in parallel on fluid circuit and connected to feed pipe (6), from generator (2), and to re-circulation pipe (7), connected to generator. To slow down/stop operation of first receiver, system has fluid bypass valve (8) with tension adjustable spring reset (9), fitted between feed pipe and first receiver. Bypass (8) occupies, when no over pressure is detected, first position under action of spring (9) allowing communication between feed pipe and first receiver. When there is over pressure, bypass (8) occupies second position opposing spring (9) action allowing communication between feed pipe and re-circulation pipe of first receiver via tapping pipe (16). Passage from first to second position puts feed pipe in communication with first receiver (3) and tapping pipe.