公开(公告)号：US06532933B1

公开(公告)日：2003-03-18

申请号：US09526283

申请日：2000-03-15

申请人： Daijirou Tanaka ,  Uichitake Uchiyama

发明人： Daijirou Tanaka ,  Uichitake Uchiyama

IPC分类号： F02B5100

CPC分类号： F02B23/104 ,  F02B2023/106 ,  F02B2075/027 ,  F02B2075/125 ,  F02D13/0215 ,  F02D41/402 ,  F02D2041/001 ,  F02D2041/389 ,  F02D2250/38 ,  Y02T10/123 ,  Y02T10/125 ,  Y02T10/44

摘要： The invention includes a combustion chamber and an injection strategy for a direct fuel injected internal combustion engine. The combustion chamber is formed with a substantially flat surface to provide a large surface area on which fuel can collect and evaporated. At high loads, fuel is injected into the combustion in two stages. The first stage starts before top-dead center and stops before a prohibited range where smoke is produced. The second stage starts after the prohibited range and stops approximately when the intake valve is at its maximum lift.

摘要翻译： 本发明包括用于直燃燃料内燃机的燃烧室和喷射策略。 燃烧室形成有大致平坦的表面，以提供燃料可以在其上收集和蒸发的大的表面积。 在高负载下，燃料分两次注入燃烧。 第一阶段在上止点之前开始，并在产生烟雾的禁止范围之前停止。 第二阶段在禁止范围之后开始，当进气门处于最大升程时大约停止。

公开(公告)号：US06508226B2

公开(公告)日：2003-01-21

申请号：US09682575

申请日：2001-09-21

申请人： Daijirou Tanaka ,  Shinichi Kurosawa

发明人： Daijirou Tanaka ,  Shinichi Kurosawa

IPC分类号： F02B1700

CPC分类号： F02F1/4214 ,  F02B23/104 ,  F02B2075/125 ,  F02F3/26 ,  F02F2001/245 ,  F05C2201/021 ,  Y02T10/123 ,  Y02T10/125

摘要： An improved combustion chamber configuration for a direct injected internal combustion engine. The cylinder head recess and piston head are configured so as to provide a small clearance volume and accordingly high compression ratios while the shape of the piston head and the arrangement of the cylinder head recess permits a portion of the injected fuel to be directed toward the exhaust valves to cool them and reduce smoke and increase fuel efficiency.