Fuel supply system, integrated component, control method

Abstract

pFuel supply system, comprising a first fuel pressure regulating valve, by means of which the pressure for a first injection device for an exhaust gas burner (37) can be adjusted, characterized in that the first fuel pressure regulating valve can be cooled by a cooling device.

Claims

[1] Fuel supply system (100), comprising a first fuel pressure control valve (33) by means of which the pressure for a first injection device (35) for a first combustion chamber (37) of an exhaust gas burner (103) can be adjusted, characterized by that the first fuel pressure control valve (33) can be cooled by a cooling device (51). [2] Fuel supply system (100) according to claim 1, wherein the first fuel pressure control valve (33) can be cooled by the cooling device (51) with a fuel (2). [3] Fuel supply system (100) according to one of the preceding claims, wherein the cooling device (51) is a cooling jacket. [4] Fuel supply system (100) according to one of the preceding claims, further comprising a first line (41) connecting a first fuel feed unit (3) to an inlet (53) of the cooling device (51) and a second line (42) connecting an outlet (55) of the cooling device (51) to a fuel filter (5) and an eighth line (48) connecting the first fuel pressure regulating valve (33) to the second line (42). [5] Fuel supply system (100) according to claim 4, wherein fuel (2) can be delivered from a fuel tank (1) by the first fuel delivery unit (3). [6] Fuel supply system (100) according to claim 4 or 5, further comprising a third line (43) connecting the fuel filter (5) to a second fuel feed unit (7), a fourth line (44) connecting the second fuel feed unit (7) to a second rail (21), a fifth line (45) connecting the second rail (21) to a second fuel pressure control valve (23). [7] The fuel supply system (100) of claim 6, further comprising a sixth line (46) connecting the second pressure regulating valve (23) to a first rail (31), wherein a seventh line (47) connects the first rail (31) to the first fuel pressure regulating valve (33). [8] Fuel supply system (100) according to claim 7, wherein an overflow line (38) connects the seventh line (47) and the second line (42) and an overflow valve (39) is arranged in the overflow line (38). [9] Fuel supply system (100) according to claim 8, wherein the overflow line (38) is arranged downstream of the eighth line (48) to the second line (42). [10] Fuel supply system (100) according to one of claims 4 to 9, wherein a ninth line (49) connects the fuel tank (1) to the second line (42), and a pressure holding valve (50) is arranged in the ninth line (49). [11] Fuel supply system (100) according to one of claims 7 to 10, wherein the first flow (ES) of fuel (2) to be delivered from the second fuel pressure regulating valve (23) into the sixth line (46) is greater than a second flow (ZS) of fuel (2), wherein a total flow (GS) of fuel (2) to be delivered by the first fuel delivery unit (3) is greater than the sum of the first flow (ES) and the second flow (ZS). [12] Control method comprising the steps of: - Determining a First Current (ES) - Determining a second current (ZS) - Determining at least one correction factor (K) - applying the at least one correction factor (K) to the first current (ES) and the second current (ZS) so that a corrected first current (ESK) and a corrected second current (ZSK) are determined - Determining a total current (GS) from the corrected first current (ESK) and the corrected second current (ZSK) - Determining a first control signal (S1) for the first fuel delivery unit (3) and a second control signal (S2) for the second fuel delivery unit (7) - Determining a third control signal (S3) for the first fuel pressure control valve (33) and a fourth control signal (S4) for the second fuel pressure control valve (23). [13] Integrated component (90), comprising: a recess for receiving a first fuel pressure control valve (33), a cooling device (51), an inlet (53), an outlet (55), a first channel (91), a second channel (92), a third channel (93). [14] Integrated component (90) according to claim 13, wherein the outlet (55) opens into the third channel (93). [15] Integrated component (90) according to claim 13 or 14, further comprising: a fourth channel (94), wherein the fourth channel (94) connects the second channel (92) to the third channel (93), wherein an overflow valve (39) is arranged in the fourth channel (94), wherein the overflow valve (39) is arranged in the fourth channel (94) such that a fuel (2) can overflow from the second channel (92) into the third channel (93).

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