公开(公告)号：US5638868A

公开(公告)日：1997-06-17

申请号：US660676

申请日：1996-06-05

Applicant: Haim Loran

Inventor： Haim Loran

IPC: F16L55/04 ,  F15B1/10 ,  F15B1/22 ,  F16L55/053

CPC classification number: F15B1/22 ,  F15B1/103 ,  F16L55/053 ,  F15B2201/205 ,  F15B2201/312 ,  F15B2201/3153 ,  F15B2201/411

Abstract: An improved hydraulic accumulator is introduced wherein a valve mechanism is used to seal a hydraulic fluid before the pressure charged piston reaches the end of the accumulator to minimize the loss of compressed gas by eliminating the pressure differential when the piston is fully extended, thereby prolonging the fatigue life of the accumulator vessel. Reduction of the pressure loading on the vessel will also prolong the life of the piston seals and metal bellows effectively extending the accumulator life and effectively allowing design for weight reduction and preservation of the integrity of the complete hydraulic or pneumatic system.

Abstract translation: 引入了一种改进的液压蓄能器，其中阀机构用于在压力充满的活塞到达蓄能器的端部之前密封液压流体，以通过消除活塞完全伸长时的压力差来最小化压缩气体的损失，从而延长 蓄能器容器的疲劳寿命。 降低容器上的压力负载也将延长活塞密封件和金属波纹管的使用寿命，有效延长了蓄能器的使用寿命，并有效地允许设计减轻重量并保持整个液压或气动系统的完整性。