A fuel feed apparatus includes a fuel pump for pumping fuel from a fuel tank to an internal combustion engine. A pressure-control valve controls pressure of fuel, which is discharged from the fuel pump, to be equal to or less than a first pressure. A jet pump generates suction pressure by jetting fu
A fuel feed apparatus includes a fuel pump for pumping fuel from a fuel tank to an internal combustion engine. A pressure-control valve controls pressure of fuel, which is discharged from the fuel pump, to be equal to or less than a first pressure. A jet pump generates suction pressure by jetting fuel, which is discharged from the fuel pump, partially through a nozzle. A pressure-retention valve is provided in an upstream of the jet pump with respect to fuel flow from the fuel pump for maintaining pressure of fuel in the upstream at a second pressure, which is less than the first pressure. A pump bracket holds the fuel pump. The pressure-control valve and the pressure-retention valve are connected to the pump bracket.
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What is claimed is: 1. A fuel feed apparatus for an internal combustion engine having a fuel tank, the fuel feed apparatus comprising: a fuel pump for pumping fuel from the fuel tank to the internal combustion engine; a pressure-control valve for controlling pressure of fuel, which is discharged fr
What is claimed is: 1. A fuel feed apparatus for an internal combustion engine having a fuel tank, the fuel feed apparatus comprising: a fuel pump for pumping fuel from the fuel tank to the internal combustion engine; a pressure-control valve for controlling pressure of fuel, which is discharged from the fuel pump, to be equal to or less than a first pressure; a jet pump for generating suction pressure by jetting fuel, which is discharged from the fuel pump, partially through a nozzle; a pressure-retention valve that is provided in an upstream of the jet pump with respect to fuel flow from the fuel pump for maintaining pressure of fuel in the upstream at a second pressure, which is less than the first pressure; and a pump bracket for holding the fuel pump, wherein the pressure-control valve and the pressure-retention valve are connected to the pump bracket. 2. The fuel feed apparatus according to claim 1, wherein the pump bracket defines a fuel passage through which the pressure-control valve communicates with the pressure-retention valve. 3. The fuel feed apparatus according to claim 1, further comprising: a sub-tank that is accommodated in the fuel tank to receive the fuel pump and the pump bracket, wherein the fuel pump has a center axis that is eccentric with respect to a center axis of the sub-tank, the pump bracket has a center axis that is eccentric with respect to the center axis of the sub-tank, the sub-tank has a large space therein on an opposite side of the center axis of both the fuel pump and the center axis of the pump bracket with respect to the center axis of the sub-tank, and the large space accommodates the pressure-control valve and the pressure-retention valve. 4. The fuel feed apparatus according to claim 3, wherein the large space accommodates the jet pump. 5. The fuel feed apparatus according to claim 3, further comprising: a jet-pump pipe that connects the pressure-retention valve with the jet pump; and an engine pipe that connects the pressure-retention valve with the internal combustion engine, wherein the large space accommodates at least one of the jet-pump pipe and the engine pipe. 6. The fuel feed apparatus according to claim 2, wherein the pump bracket has a pressure-control valve holder and a pressure-retention valve holder, the pressure-control valve holder defines a first space that accommodates the pressure-control valve and communicates with the fuel passage, and the pressure-retention valve holder defines a second space that accommodates the pressure-retention valve and communicates with the fuel passage. 7. A fuel feed apparatus for an internal combustion engine having a fuel tank, the fuel feed apparatus comprising: a fuel pump for pumping fuel from the fuel tank to the internal combustion engine; and a pump bracket for holding the fuel pump, the pump bracket defining a fuel passage through which the fuel pump discharges fuel, wherein the pump bracket has a pressure-control valve holder and a pressure-retention valve holder, the pressure-control valve holder is connectable with a pressure-control valve, which is for controlling pressure of fuel, discharged from the fuel pump, to be equal to or less than a first pressure, the pressure-control valve holder defines a first space communicating with the fuel passage, the pressure-retention valve holder is connectable with a pressure-retention valve, which is for maintaining pressure of fuel at a second pressure less than the first pressure, and the pressure-retention valve holder defines a second space communicating with the fuel passage. 8. The fuel feed apparatus according to claim 7, wherein the pressure-control valve holder defines the first space for accommodating the pressure-control valve, the first space communicates with the fuel passage, the pressure-retention valve holder defines the second space for accommodating the pressure-retention valve, and the second space communicates with the fuel passage. 9. The fuel feed apparatus according to claim 7, wherein the pressure-control valve holder is separate from the pressure-retention valve holder. 10. The fuel feed apparatus according to claim 7, wherein the pump bracket includes a main portion, which defines the fuel passage, and the main portion, the pressure-control valve holder, and the pressure-retention valve holder are integrally formed or resin. 11. The fuel feed apparatus according to claim 7, wherein the pressure-control valve holder is connectable with any one of the pressure-control valve and the pressure-retention valve, and the pressure-retention valve holder is connectable with an other one of the pressure-control valve and the pressure-retention valve.
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