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1. 发明公开

EP1041274A1 FUEL INJECTION VALVE FOR DIESEL ENGINE 有权
标题翻译： BRENNSTOFFEINSPRITZVENTILFÜRDIESELMOTOREN
公开(公告)号：EP1041274A1
公开(公告)日：2000-10-04
申请号：EP98947804.5
申请日：1998-10-09
申请人： Arimoto, Jun
发明人： Arimoto, Jun
IPC分类号： F02M61/18 , F02M61/04 , F02M61/10
CPC分类号： F02M61/1806 , F02M61/12 , F02M61/16 , F02M61/162 , F02M61/18 , F02M2200/29
摘要： The present invention relates to a fuel injection nozzle of a direct-injection diesel engine. Said valve comprises a first serration formed on the opening edge of a nozzle body and a second serration formed to the top end portion of a needle valve, which incline against the axial direction, and a third serration and a fourth serration formed to the outer wall of the end portion of said needle valve and to the inner wall of a rotary valve inserted to said end portion, which incline to the opposite direction to the first and second serrations with respect to the axial direction. When the needle valve is lifted, the needle valve axially rotates, and the rotary valve rotates relative to said needle valve in the same rotating direction. As the rotation amount increases, the overlapped area of first nozzle holes formed to the nozzle body and second nozzle holes formed to the rotary valve increases. During idle state or in low-load region, the overlapped area is small, and during high load, the area increases corresponding to the fuel injection pressure. Thus, the spray penetration of the fuel is maintained constantly high, and the fuel effectively collides with squished air, realizing good mixture. Thereby, it is possible to effectively minimize ignition delay, while improving combustion performance, quietness, and exhaust emissions performance.
摘要翻译：本发明涉及直喷式柴油发动机的燃料喷射喷嘴。所述阀包括形成在喷嘴主体的开口边缘上的第一锯齿形状和形成在针阀的顶端部分上的第二锯齿，其相对于轴向倾斜，以及形成在外壁上的第三锯齿和第四锯齿所述针阀的端部和插入到所述端部的旋转阀的内壁相对于所述轴向方向倾斜到与所述第一和第二锯齿相反的方向。当针阀被提起时，针阀轴向旋转，并且旋转阀相对于所述针阀在相同的旋转方向上旋转。随着旋转量增加，形成在喷嘴体上的第一喷嘴孔和形成在旋转阀上的第二喷嘴孔的重叠面积增加。在怠速状态或低负载区域，重叠区域小，在高负载时，面积随燃料喷射压力而增加。因此，燃料的喷雾渗透率保持恒定，并且燃料有效地与空气相撞，实现良好的混合。由此，能够在提高燃烧性能，安静性和废气排放性能的同时有效地最小化点火延迟。

2. 发明公开

EP1041274A4 FUEL INJECTION VALVE FOR DIESEL ENGINE 有权
标题翻译：燃料喷射阀的柴油发动机
公开(公告)号：EP1041274A4
公开(公告)日：2009-05-27
申请号：EP98947804
申请日：1998-10-09
申请人： ARIMOTO JUN
发明人： ARIMOTO JUN
IPC分类号： F02M61/04 , F02M61/10 , F02M61/12 , F02M61/16 , F02M61/18
CPC分类号： F02M61/1806 , F02M61/12 , F02M61/16 , F02M61/162 , F02M61/18 , F02M2200/29
摘要： A fuel direct injection valve for diesel engines, in which a needle valve is rotated by first and second serrations formed in an edge portion of an opening of a nozzle body and in a base portion of the needle valve and by third and fourth serrations formed on the axially opposite side to the first and second serrations, and in which as the needle valve rotates, the area of the portion where a first nozzle hole formed in the nozzle body overlaps with second nozzle hole formed in a rotary valve increases. In the low load operation region, the area is small. In the high load operation, the area increases with the fuel injection pressure, so that the complete penetration force of the fuel injection can be large and constant, and the fuel effectively contacts and strikes squished air and satisfactory mixes with the air. This minimizes the delay of ignition and enhances the combustion, low-noise, and exhaust emission performances.

3. 发明授权

EP1041274B1 FUEL INJECTION VALVE FOR DIESEL ENGINE 有权
标题翻译：燃料喷射阀的柴油发动机
公开(公告)号：EP1041274B1
公开(公告)日：2010-09-08
申请号：EP98947804.5
申请日：1998-10-09
申请人： Arimoto, Jun
发明人： Arimoto, Jun
IPC分类号： F02M61/18 , F02M61/04 , F02M61/10
CPC分类号： F02M61/1806 , F02M61/12 , F02M61/16 , F02M61/162 , F02M61/18 , F02M2200/29

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