Patent ID: 6923208

Claim:
A fluid supply device for supplying a fluid of a fluid tank to an outside of the fluid tank, the fluid supply device comprising: a fluid pump that sucks and discharges the fluid; a fluid filter including a filter element for filtering the fluid supplied from the fluid pump, and a filter case covering the filter element; a pressure regulator for regulating a pressure of the fluid flowing out of the fluid filter; a sub-tank disposed in the fluid tank, for housing the fluid filter, the fluid pump and the pressure regulator; and a jet pump that is integrally fixed at a bottom of the sub tank for supplying the fluid from the fluid tank to the sub-tank by negative pressure generated while discharging surplus fluid from the pressure regulator, wherein the fluid pump, the fluid filter and the pressure regulator are assembled to form a pump module, and are installed in the sub-tank; the jet pump has a fuel inlet placed inside the sub-tank, and the fluid inlet of the jet pump and a fluid outlet of the pressure regulator are directly connected to each other; and one of the fluid outlet of the pressure regulator and the fluid inlet of the jet pump has a guide portion that guides the other one thereof when the jet pump and the pressure regulator are connected.