초록 ▼

The fuel supply apparatus according to the invention is improved in a simple manner in that it is provided with short fuel lines. According to the invention, the drive line of the suction jet pumps is connected to a pressure line downstream of the fuel supply pump and has at least one check valve o

The fuel supply apparatus according to the invention is improved in a simple manner in that it is provided with short fuel lines. According to the invention, the drive line of the suction jet pumps is connected to a pressure line downstream of the fuel supply pump and has at least one check valve or a siphon.

대표청구항 ▼

We claim: 1. An apparatus for delivering fuel from a tank to an internal combustion engine of a motor vehicle, comprising a reservoir (4) located in the tank (1), a fuel supply pump (7) disposed in the reservoir (4), at least two suction jet pumps (22.1, 22.2) connected to a drive line (29, 29.0, 2

We claim: 1. An apparatus for delivering fuel from a tank to an internal combustion engine of a motor vehicle, comprising a reservoir (4) located in the tank (1), a fuel supply pump (7) disposed in the reservoir (4), at least two suction jet pumps (22.1, 22.2) connected to a drive line (29, 29.0, 29.1, 29.2), the drive line of the suction jet pumps being connected to a pressure line (10) downstream of the fuel supply pump (7), at least one check valve (41) or a siphon connected in the drive line between the pressure line and the at least two suction jet pumps, a pressure-regulating valve (17) maintaining a constant pressure in the pressure line (10), and a throttle (40) in the drive line (29, 29.0) between the at least one check valve (41) or siphon and said pressure-regulating valve (17). 2. The apparatus according to claim 1, wherein the pressure-regulating valve (17) connects the drive line (29, 29.0, 29.1, 29.2) to the pressure line (10) only after a predetermined pressure is reached in the pressure line (10). 3. The apparatus according to claim 1, wherein a first suction jet pump (22.1) draws fuel via a suction port (32) from a pan region (1.2) of the tank (1), wherein the pan region contains the reservoir (4). 4. The apparatus according to claim 1, wherein a second suction jet pump (22.2) draws fuel from a saddle region (1.1) of the tank (1) by means of an intake line (34). 5. The apparatus according to claim 3, wherein a second suction jet pump (22.2) draws fuel from a saddle region (1.1) of the tank (1) by means of an intake line (34). 6. The apparatus according to claim 4, wherein the intake line (34) further comprises a suction check valve (43). 7. The apparatus according to claim 1, wherein a first suction jet pump (22.1) and second suction jet pump (22.2) are disposed vertically. 8. The apparatus according to claim 1, wherein a nozzle (24.2, 24.2) and a suction chamber (23.1, 23.2) of the section jet pumps (22.1, 22.2) are provided on a bottom (21) of the reservoir (4). 9. The apparatus according to claim 1, wherein the drive line (29) comprises a first line segment (29.1) leading to a first suction jet pump (22.1) and a second drive line segment (29.2) leading to a second suction jet pump (22.2). 10. The apparatus according to claim 9, wherein the first drive line segment (29.1) and the second drive line segment (29.2) are each provided with a respective check valve (41). 11. An apparatus for delivering fuel from a tank to an internal combustion engine of a motor vehicle, comprising a reservoir (4) located in the tank (1), a fuel supply pump (7) disposed in the reservoir (4), at least two suction jet pumps (22.1, 22.2) connected to a drive line (29, 29.0, 29.1, 29.2), the drive line of the suction jet pumps being connected to a pressure line (10) downstream of the fuel supply pump (7) and, at least one check valve (41) or a siphon connected in the pressure line, wherein a first suction jet pump (22.1) draws fuel via a suction port (32) from a pan region (1.2) of the tank (1) containing the reservoir (4), wherein a second suction jet pump (22.2) draws fuel from a saddle region (1.1) of the tank (1) by means of an intake line (34), wherein the drive line (29) comprises a first line segment (29.1) leading to the first suction jet pump (22.1) and a second drive line segment (29.2) leading to the second suction jet pump (22.2), and wherein said at least one check valve or siphon is provided in one of the first drive line segment (29.1) or the intake line (34) in a manner so as to prevent a reverse flow from the pan side 1.2 to the saddle side 1.2 via the suction let pumps 22.1, 22.2 and the intake line 34 after shutting off the fuel pump.