Return Oil Hard Pipe

The primary function of the return oil hard pipe in an excavator is to send excess oil back to the oil tank, relieve fuel pressure, and reduce fuel consumption.

The return oil pipe is a seemingly inconspicuous component in an engine, yet it plays a crucial role in ensuring the engine’s normal operation. In excavators, the return oil hard pipes also play a key role. Their main function is to return the excess hydraulic oil used in the hydraulic system back to the oil tank, thereby relieving fuel pressure and reducing fuel consumption. This process is essential for maintaining the efficiency of the engine and hydraulic system, as it helps sustain the stable operation of the system while reducing unnecessary energy consumption.

Hydraulic oil pipes on excavators can be divided into two main categories: hard pipes and flexible pipes. Hard pipes mainly consist of metal pipes, such as steel pipes and iron pipes, while flexible pipes include rubber hoses, PTFE hoses, corrugated hoses, and other flexible tubing. The return oil hard pipes belong to the former category. They carry out the task of transporting fluids in the hydraulic system while also transmitting pressure. These hard pipes are typically used to connect various components of the hydraulic system, ensuring the circulation of hydraulic oil and the stability of pressure, thereby guaranteeing the normal operation and efficient performance of the excavator.‌