| 摘要 |
An internal combustion engine (1), preferably for a motor vehicle, having at least one cylinder (2) which encloses a combustion chamber (3) and in which a piston (4) is situated in such a way that it may perform a stroke movement, and having at least one injector (5) per cylinder for injecting fuel into the combustion chamber (3). The respective injector (5) has multiple injection openings (9, 10) through which the fuel exits from the injector (5) and enters into the combustion chamber (3).;To be able to react more fuel, first injection openings (9) and second injection openings (10) are situated relative to one another in such a way that first injection jets (15) from the first injection openings (9) reach the piston (4) essentially without contacting second injection jets (18) from the second injection openings (10). |
| 主权项 |
1. An internal combustion engine, with
at least one cylinder (2) which encloses a combustion chamber (3) and in which a piston (4) is situated in such a way that it may perform a stroke movement, at least one injector (5) per cylinder (2) for injecting fuel into the combustion chamber (3), the respective injector (5) having a longitudinal central axis (7) and multiple injection openings (9, 10) through which the fuel exits from the injector (5) and enters into the combustion chamber (3) during an injection process, wherein the respective injector (5) has a first opening row (12) with multiple first injection openings (9) in a first opening plane (11) extending transversely with respect to the longitudinal central axis (7) of the injector, and a second opening row (14) with multiple second injection openings (10) in a second opening plane (13) extending transversely with respect to the longitudinal central axis (7) of the injector, wherein the first injection openings (9) and the second injection openings (10) are situated relative to one another in such a way that during an injection process, first injection jets (15) from the first injection openings (9) reach the piston (4) essentially without contacting second injection jets (18) from the second injection openings (10), and wherein the particular piston (4) has a piston recess (27), on its side (26) facing the respective combustion chamber (3), having a recess contour (28) which:
for the first injection jets (15) has a jet splitter geometry (31) which splits the first injection jets (15) into first partial jets (32) and second partial jets (33), the first partial jets (32) being deflected into an area (34) facing the second injection jets (18), and the second partial jets (33) being deflected into an area (35) facing away from the second injection jets (18), andfor the second injection jets (18) has a deflection geometry (29) which deflects the second injection jets (18) in the direction toward the first injection jets (15), and wherein the first injection openings (9) have a first jet disintegration which is smaller than a second jet disintegration of the second injection openings (10). |
