公开(公告)号：US20100122686A1

公开(公告)日：2010-05-20

申请号：US12619530

申请日：2009-11-16

申请人： Sangkyu KIM ,  Daisuke SHIMO ,  Motoshi KATAOKA

发明人： Sangkyu KIM ,  Daisuke SHIMO ,  Motoshi KATAOKA

IPC分类号： F02B3/00 ,  F02B23/00

CPC分类号： F02B23/0672 ,  F02B23/0651 ,  F02B23/0669 ,  Y02T10/125

摘要： A wall shape of a cavity consists of an inward protruding portion located at the periphery of an opening, a center portion projecting toward a fuel injector, and a peripheral portion connecting the inward protruding portion and the center portion. The fuel injector and the cavity are configured so that fuel injected from fuel injector directs to the proximity of the border between the inward protruding portion and the peripheral portion. The peripheral portion consists of a first portion located farthermost from the fuel injector, a second portion located between the inward protruding portion and the first portion, and a third portion located between the first portion and the center portion. The radii of arcs of the peripheral portion decrease from the second portion to the first portion and increase from the first portion to the third portion.

摘要翻译： 空腔的壁形由位于开口周边的向内突出部分，朝向燃料喷射器突出的中心部分和连接向内突出部分和中心部分的周边部分组成。 燃料喷射器和空腔被构造成使得从燃料喷射器喷射的燃料引导到内向突出部分和周边部分之间的边界附近。 周边部分由位于燃料喷射器最远处的第一部分，位于内部突出部分和第一部分之间的第二部分和位于第一部分和中心部分之间的第三部分组成。 周边部分的弧的半径从第二部分减小到第一部分，并且从第一部分增加到第三部分。