Construction or forest equipment fuel supply system and additional fuel tank

摘要

A fuel supply system for supplying a fuel to an engine mounted on an upper frame (3) of heavy construction/forest equipment is provided. The fuel supply system includes a junction tank unit (20) for interflowing a fuel supply line (51) which is connected to a lower end of a primary fuel tank (1) and a fuel supply line (52) which is connected to a lower end of a secondary fuel tank (10), the fuel supply lines (51,52) being connected in parallel to each other, a water separator (30) connected to the junction tank unit (20) via a fuel supply line (53), a fuel supply line (54) for supplying the fuel to an engine (40) from the water separator (30), and a fuel recovery line (55) for recovering a remaining fuel from the engine (40) to the primary fuel tank (1).