Analysis and Solution of Hydraulic Cylinder’s Leakage Problem

Abstract

This paper discusses the main reasons for the leakage of hydraulic cylinder, analyzes the advantages and disadvantages of polyurethane seal rings for hydraulic cylinder reciprocating sealing, compares the performance and characteristics of several commonly-used reciprocating seals, and studies the sealing mechanism, material characteristics , effects of practical applications and gives the solution of Packing PTFE combined sealing.