초록 ▼

The present invention provides a fuel supply device that can suppress the excessive heating of a fuel supplied from a fuel pump into an internal combustion engine even if a control module is cooled. The fuel supply device (1) comprises a set plate (10) attached to a mounting hole (34a) of a fuel tan

The present invention provides a fuel supply device that can suppress the excessive heating of a fuel supplied from a fuel pump into an internal combustion engine even if a control module is cooled. The fuel supply device (1) comprises a set plate (10) attached to a mounting hole (34a) of a fuel tank (34), an electric fuel pump (30) attached to an inner surface of the set plate (10), a control module (14) attached to an outer surface of the set plate (10), the control module driving the fuel pump (30) using electric power supplied from the exterior, and a heat radiating member (32) for radiating heat generated in the control module. One end of the heat radiating member (32) is thermally connected to the control module (14), and the other end of the heat radiating member (32) protrudes downward from the inner surface of the set plate (10).

대표청구항 ▼

The invention claimed is: 1. A fuel supply device for discharging fuel stored within a fuel tank to an exterior of the fuel tank, comprising: a set plate attached to a mounting hole of a fuel tank, the set plate covering the mounting hole; an electric fuel pump attached to the inner surface of the

The invention claimed is: 1. A fuel supply device for discharging fuel stored within a fuel tank to an exterior of the fuel tank, comprising: a set plate attached to a mounting hole of a fuel tank, the set plate covering the mounting hole; an electric fuel pump attached to the inner surface of the set plate; a control module attached to the outer surface of the set plate, the control module driving the fuel pump using electric power supplied from the exterior of the fuel tank; and a heat radiating member for radiating heat generated in the control module; wherein one end of the heat radiating member is thermally connected to the control module, and the other end of the heat radiating member protrudes downward from the inner surface of the set plate into the fuel tank, and at least part of the heat radiating member is constructed and arranged to be immersed in the fuel in the fuel tank in order to radiate the heat to the entirety of the fuel in the fuel tank. 2. A fuel supply device according to claim 1, wherein: the control module comprises a heat generating electronic device; the heat radiating member is a heat radiating plate formed in a plate shape, and a central part thereof is bent; and one side of the heat radiating plate from the bent part protrudes downward from the inner surface of the set plate, and the heat generating electronic device of the control module is disposed on a surface of the other side of the heat radiating plate from the bent part. 3. A fuel supply device according to claim 1, wherein: the control module comprises a heat generating electronic device; the heat radiating member is a cooling rod formed in a rod shape, a plate-shaped head part being formed on the cooling rod; and a part of the cooling rod below the head part protrudes downward from the inner surface of the set plate, and the heat generating electronic device of the control module is disposed on the head part of the cooling rod. 4. A fuel supply device according to claim 1, wherein: a fuel filter for removing foreign matter from the fuel discharged from the fuel pump is attached to the inner surface of the set plate; and when a circle having the smallest radius capable of housing the fuel pump and the fuel filter has been drawn on a surface perpendicular to an axis of the fuel pump, a part of the heat radiating member protruding from the inner surface of the set plate is disposed within that circle. 5. A fuel supply device according to claim 2, wherein the set plate and the heat radiating plate are molded integrally by insert molding, and a part of the heat radiating plate embedded within the set plate has a through hole formed therein, the through hole passing through the heat radiating plate in its direction of thickness. 6. A fuel supply device according to claim 5, wherein the heat radiating plate is molded integrally in an un-bent state with the set plate, and is bent after being molded integrally. 7. A fuel supply device according to claim 1, wherein a pressure regulator for adjusting pressure of the fuel discharged from the fuel pump, and an ejecting part for ejecting to the fuel tank the fuel being returned by the pressure regulator are further provided on the inner surface of the set plate, the position of the ejecting part and the ejecting direction of the returning fuel being adjusted such that the fuel ejected from the ejection part is discharged toward the heat radiating member. 8. A fuel supply device according to claim 1, further comprising a fuel circulating means for circulating the fuel in the fuel tank around this fuel tank, and a storage vessel for storing the fuel circulated by the fuel circulating means, wherein the heat radiating member is disposed within the storage vessel and a length of the heat radiating member is adjustable. 9. A fuel supply device according to claim 1, further comprising a fuel circulating passage along which the fuel circulating around the fuel tank flows, the heat radiating member and the fuel circulating passage being thermally connected. 10. A fuel supply device for discharging fuel stored within a fuel tank to the exterior of the fuel tank, comprising: an electric fuel pump; a set plate attached to a mounting hole of the fuel tank, the set plate covering the mounting hole; a control module attached to the set plate, the control module driving the fuel pump using electric power supplied from the exterior; and means for circulating fuel in the fuel tank around this fuel tank, wherein: the fuel circulating means has a fuel discharge hole for discharging the circulating fuel within the fuel tank, and at least a part of the control module is disposed within the fuel tank and is cooled by discharged fuel from the fuel discharge hole. 11. A fuel supply device according to claim 10, further comprising a case for housing the control module, at least a part of the case being exposed within the fuel tank, and the fuel being discharged from the fuel discharge hole at this exposed part. 12. A fuel supply device according to claim 10, further comprising a heat radiating plate thermally connected with the control module, at least a part of the heat radiating plate being exposed within the fuel tank, and the fuel being discharged from the fuel discharge hole at this exposed part. 13. A fuel supply device according to claim 10, wherein the fuel circulating means causes the fuel within the fuel tank to circulate around this fuel tank. 14. A fuel supply device according to claim 10, wherein the fuel circulating means further comprises a relief means for returning surplus fuel, from the fuel pressurized by the fuel pump, back into the fuel tank. 15. A fuel supply device according to claim 10, wherein the fuel circulating means further comprises means for sucking the fuel in the fuel tank using negative pressure generated by utilizing a part of the fuel pressurized by the fuel pump. 16. A device according to claim 11, wherein: the case is positioned substantially perpendicularly with respect to the set plate, a part of the case protruding into the fuel tank, and a part of the control module being disposed on an inner side of the fuel tank, and a heat generating electronic device of the control module is disposed on the inner side of the fuel tank, and other parts of the control module are disposed on an outer side of the fuel tank. 17. A fuel supply device for discharging fuel stored within a fuel tank to the exterior of the fuel tank, comprising: a set plate attached to a mounting hole of the fuel tank, the set plate covering the mounting hole; an electric fuel pump attached to the set plate; a control module for driving the fuel pump using electric power supplied from the exterior of the fuel tank; a heat radiating member for radiating heat generated in the control module; means for circulating fuel in the fuel tank around this fuel tank; and a storage vessel for storing the fuel circulated by the fuel circulating means, wherein the storage vessel is disposed in a position apart from the set plate, and the control module is attached to the set plate and is cooled by the fuel stored in the storage vessel. 18. A fuel supply device for discharging fuel stored within a fuel tank to an exterior of the fuel tank, comprising: a set plate attached to a mounting hole of a fuel tank, the set plate covering the mounting hole; an electric fuel pump attached to an inner surface of the set plate; a control module attached to an outer surface of the set plate, the control module driving the fuel pump using electric power supplied from the exterior of the fuel tank; a heat radiating member for radiating heat generated in the control module; a pressure regulator provided on the inner surface of the set plate, the pressure regulator adjusting pressure of the fuel discharged from the fuel pump; and an ejecting part provided on the inner surface of the set plate, the ejecting part ejecting to the fuel tank the fuel being returned by the pressure regulator; wherein: one end of the heat radiating member is thermally connected to the control module, and the other end of the heat radiating member protrudes downward from the inner surface of the set plate, and the position of the ejecting part and the ejecting direction of the returning fuel are adjusted such that the fuel ejected from the ejecting part is discharged toward the heat radiating member.