HYDRAULISK SWIVEL

摘要

A hydraulic swivel joint (40) transfers pressurized hydraulic fluid from a stationary spool (50) to a housing (42) mounted for rotation about the spool (50). The swivel (40) also carries a drain line (64) placed in fluid communication with the spool/housing interface above and below the pressurized fluid passages so that any fluid leaking from the pressurized fluid passages will find its way to the drain and thus not to the outside of the swivel.