PLUNGER-TYPE HYDRAULIC CYLINDER Russian patent published in 2001 - IPC

FIELD: hydraulic press equipment; materials- handling machines. SUBSTANCE: proposed cylinder has body, liner with seal, rod with tail- piece and stop located in body forming hydraulic cavity; cup-type stop is axially movable over tail-piece; its inner bore embraces locking ring fitted in groove available in tail-piece; fitted between end surfaces of stop and tail-piece at interference is compensator of clearanceless location made in form of flexible member of round section; axial clearance between end surfaces of tail-piece and stop exceeds width of inner bore of stop. EFFECT: enhanced reliability of hydraulic cylinder; improved conditions for servicing and repair; reduced consumption of labor required for manufacture and repair. 3 dwg