Fluid supply device
AssigneeDenso Corporation
InventorsKenji Okabe, Yoshio Ebihara, Tatsuo Sakai
Life of this patent
Estimating the term…
Abstract
In a fuel supply device disposed in a fuel tank, a pump module is constructed with at least a fuel pump, a fuel filter and a pressure regulator, and is installed in a sub-tank. A filter case of the fuel filter has first ribs and second ribs, so that an axially position between the pump module and the sub-tank is set by the first ribs, and a circumferential position therebetween is set by the second ribs. Further, a fuel inlet of a jet pump is formed in an inner bottom surface of the sub-tank, and an inner surface of the fuel inlet of the jet pump is tapered. Therefore, a fuel outlet of the pressure regulator is guided while being connected to the fuel inlet of the jet pump. Accordingly, the fuel supply device can be assembled easily.
Claims12
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 disposed 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.
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 disposed 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 jet pump has a fluid 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;
- the fluid pump, the fluid filter and the pressure regulator are assembled to form a pump module and are installed in the sub-tank;
- and
- the pump module has a module position setting member for setting an arrangement position of the pump module in the sub-tank when the pump module is installed in the sub-tank.
Dependencies are inferred from the claim text.