The present disclosure relates generally to hydraulic systems and, more particularly, to aircraft hydraulic fluid distribution lines.
Known aircraft hydraulic systems use a pressurized supply line to transport hydraulic fluid to a load, and a separate return line for returning the hydraulic fluid from the load back to a storage tank or reservoir. Known pressurized supply lines and return lines are fabricated with a wall thickness that is sufficient to withstand pressure differentials that may exist within the hydraulic system. Separate pressure and return lines may require extra space and hardware. In an aircraft, space is limited, and the additional hardware increases weight, part cost, and installation time. Additionally, pressure lines are generally unprotected and thus, may be susceptible to damage during handling and installation and may be thicker and heavier than necessary.