发明名称 DIRECT INJECTION SPARK-IGNITION TYPE INTERNAL COMBUSTION ENGINE
摘要 PROBLEM TO BE SOLVED: To layer-likely and surely transport fuel atomization to nearby an ignition plug, by collecting an air flow from the groove part of a piston crown surface to one point, to lead the air flow to nearby a fuel injection valve. SOLUTION: A sequential tumble flow, guided by the groove part 11 of a piston 3 crown surface to move toward nearby a fuel injection valve 10 and toward nearby an ignition plug 9 from nearby the valve 10, is produced in a combustion chamber 4. The groove part 11 of the piston 3 crown surface has a width having the broad exhaust valve 6 side and the narrow intake valve 5 side, and a depth having the shallow valve 6 side and the deep valve 5 side.
申请公布号 JP2000345847(A) 申请公布日期 2000.12.12
申请号 JP19990159214 申请日期 1999.06.07
申请人 NISSAN MOTOR CO LTD 发明人 ITO YASUYUKI;URUSHIBARA TOMONORI;IRIYA YUICHI;FUKUDA TAKASHI
分类号 F02B17/00;F02B23/10;F02B31/00;F02B75/02;F02B75/12;F02F1/24;F02F3/24;F02F3/26;F02F3/28;(IPC1-7):F02B23/10 主分类号 F02B17/00
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