Patent ID: 7644704

Claim:
A fuel supply system comprising: a fuel pump that pumps fuel in a fuel tank to forcibly feed fuel; a filter element that is configured to cover at least part of an outer periphery of the fuel pump, wherein the filter element removes a foreign object in fuel discharged by the fuel pump; a pressure regulating valve that is configured to adjust pressure of fuel that has passed through the filter element; and a filter case that is configured to cover a radially inner surface and a radially outer surface of the filter element, wherein: the filter case has a receiving portion that has a bottom portion; the filter element has an end portion on a side of the filter element toward the bottom portion; the bottom portion of the receiving portion and the end portion of the filter element defines therebetween an outflow chamber for storing fuel that has passed through the filter element; the outflow chamber includes a partitioning member that partitions the outflow chamber into a first outflow chamber section and a second outflow chamber section such that the first outflow chamber section is separated from the second outflow chamber section in a longitudinal direction; the first outflow chamber section is provided on a side of the second outflow chamber section toward the filter element; the second outflow chamber section is communicated with an inlet portion of the pressure regulating valve; and the partitioning member has a communication portion that provides communication between the first outflow chamber section and the second outflow chamber section.