| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a structure of a combustion chamber of an internal combustion engine in which the formation of an excessively rich area of fuel is suppressed by preventing the mist of fuel which is injected from an injector toward a cavity from expanding circumferentially along the wall surface of the cavity so as to prevent the adjacent mists from being interfered with each other, and a heat loss from the mists of fuel to the wall surface of the cavity is reduced. <P>SOLUTION: In this structure of a combustion chamber of an internal combustion engine, a cavity 3 with which a plurality of mists F of fuel injected at intervals from an injector 2 disposed above in the circumferential direction are collided is recessed in the top part of a piston 1. A plurality of guide projections 4 in the radial direction of the cavity 3 are provided to the wall surface 3x of the cavity 3 at positions where the mists F are collided so as to suppress the interference of the adjacent mists F due to the expansion of the mists F along the wall surface 3x in the circumferential direction of the cavity 3. The guide projections 4 are formed of a heat insulation material to suppress a heat loss from the mist F to the wall surface 3x. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
