Potential energy storage type protruding undercarriage buffer

• Main Authors: NIE HONG, ZHANG MING, WAN JUNLIN, CUI JUNHUA, DUAN PINGPING
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2012
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The invention discloses a potential energy storage type protruding undercarriage buffer, and belongs to airplane undercarriage buffers. The buffer comprises an outer cylinder (9), a piston rod (1), a central oil hole support (19), a pressure rod (25) and a limiting device (21). A control cavity (31) is formed above a middle supporting surface (33) and below the top of the outer cylinder (9); a low-pressure air cavity (35) is formed between the top of oil (40) and the middle supporting surface (33); a main oil cavity (8) is formed in the interior and the upper part of a piston rod outer cylinder (39) positioned on the upper part of a high-pressure cavity floating piston (4); an annular protruding oil cavity (10) is formed among an annular piston (36), the outside wall of the piston rod outer cylinder (39) and the inner wall of the outer cylinder (9); and a high-pressure air cavity (3) is formed between the high-pressure cavity floating piston (4) and the bottom of the piston rod outer cylinder (39). The buffer