公开(公告)号：US20050109328A1

公开(公告)日：2005-05-26

申请号：US10968919

申请日：2004-10-21

申请人： Tomoharu Sakai ,  Takeshi Hasegawa ,  Takafumi Shigemori ,  Toshiaki Umemura ,  Yoshiyuki Hoshiba ,  Katsuhiko Miyamoto ,  Kiyotaka Hosono ,  Hideki Miyamoto ,  Yu Yokoyama

发明人： Tomoharu Sakai ,  Takeshi Hasegawa ,  Takafumi Shigemori ,  Toshiaki Umemura ,  Yoshiyuki Hoshiba ,  Katsuhiko Miyamoto ,  Kiyotaka Hosono ,  Hideki Miyamoto ,  Yu Yokoyama

IPC分类号： F02F3/28 ,  F02B17/00 ,  F02B23/00 ,  F02B23/08 ,  F02B23/10 ,  F02F3/12 ,  F02F3/26

CPC分类号： F02B23/08 ,  F02B17/005 ,  F02B2023/106 ,  F02B2275/40 ,  F02F3/26 ,  F02F2001/241 ,  Y02T10/125

摘要： There is provided a combustion chamber structure in an internal combustion engine in which, at a peripheral portion of a combustion chamber, a gap between a cylinder head lower face and a piston upper face is small in intake-to-intake and exhaust-to-exhaust zones and gradually increases toward an intake-to-exhaust zone. According to such design, the mixture in the peripheral portion of the combustion chamber can smoothly flow from the intake-to-intake and exhaust-to-exhaust zones to the intake-to-exhaust zone along the peripheral face of the cylinder. The flow of air-fuel mixture from the intake-to-intake zone collides at the center of the intake-to-exhaust zone with the flow of mixture from the exhaust-to-exhaust zone, and the combined flow goes over a conical tapered portion in the upper face of the piston and vigorously enters a central recessed portion thereof. Therefore, it is possible to satisfactorily mix an air-fuel mixture with a simplified configuration.

公开(公告)号：US06971379B2

公开(公告)日：2005-12-06

申请号：US10968919

申请日：2004-10-21

申请人： Tomoharu Sakai ,  Takeshi Hasegawa ,  Takafumi Shigemori ,  Toshiaki Umemura ,  Yoshiyuki Hoshiba ,  Katsuhiko Miyamoto ,  Kiyotaka Hosono ,  Hideki Miyamoto ,  Yu Yokoyama

发明人： Tomoharu Sakai ,  Takeshi Hasegawa ,  Takafumi Shigemori ,  Toshiaki Umemura ,  Yoshiyuki Hoshiba ,  Katsuhiko Miyamoto ,  Kiyotaka Hosono ,  Hideki Miyamoto ,  Yu Yokoyama

IPC分类号： F02F3/28 ,  F02B17/00 ,  F02B23/00 ,  F02B23/08 ,  F02B23/10 ,  F02F3/12 ,  F02F3/26

CPC分类号： F02B23/08 ,  F02B17/005 ,  F02B2023/106 ,  F02B2275/40 ,  F02F3/26 ,  F02F2001/241 ,  Y02T10/125

摘要： There is provided a combustion chamber structure in an internal combustion engine in which, at a peripheral portion of a combustion chamber, a gap between a cylinder head lower face and a piston upper face is small in intake-to-intake and exhaust-to-exhaust zones and gradually increases toward an intake-to-exhaust zone. According to such design, the mixture in the peripheral portion of the combustion chamber can smoothly flow from the intake-to-intake and exhaust-to-exhaust zones to the intake-to-exhaust zone along the peripheral face of the cylinder. The flow of air-fuel mixture from the intake-to-intake zone collides at the center of the intake-to-exhaust zone with the flow of mixture from the exhaust-to-exhaust zone, and the combined flow goes over a conical tapered portion in the upper face of the piston and vigorously enters a central recessed portion thereof. Therefore, it is possible to satisfactorily mix an air-fuel mixture with a simplified configuration.

摘要翻译： 在内燃机中设置有燃烧室结构，其中在燃烧室的周边部分，气缸盖下表面和活塞上面之间的间隙在进气和排气中是小的， 排气区域逐渐增加到进气排气区域。 根据这样的设计，燃烧室的周边部分的混合物能够沿着气缸的周面平滑地从吸入排气到排气到排气区流到排气区域。 从进气到进气区域的空气 - 燃料混合物的流动在排气到排气区域的混合物流中在吸入排气区域的中心碰撞，并且组合的流过锥形锥形 活塞的上表面部分，并且剧烈地进入其中心凹部。 因此，可以令人满意地混合具有简化结构的空气 - 燃料混合物。