Invention Grant
- Patent Title: Direct-injection spark-ignition internal combustion engine
- Patent Title (中): 直喷式火花点火内燃机
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Application No.: US11794729Application Date: 2005-01-06
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Publication No.: US07690348B2Publication Date: 2010-04-06
- Inventor: Dai Tanaka , Keisuke Nagakura , Koji Hata , Joji Matsubara , Shigeo Yamamoto
- Applicant: Dai Tanaka , Keisuke Nagakura , Koji Hata , Joji Matsubara , Shigeo Yamamoto
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Current Assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- International Application: PCT/JP2005/000071 WO 20050106
- International Announcement: WO2006/072983 WO 20060713
- Main IPC: F02B5/00
- IPC: F02B5/00 ; F02B17/00

Abstract:
In the top face of a piston (6), there is formed a cavity (30) having a bottom surface (32) which slopes downward toward an exhaust side and which includes a raised part (32a) extending from near the center of the bottom surface to an intake-side wall surface. The cavity guides fuel spray (15) which has been injected by an injector (12) and passed by an electrode part (14a) of a spark plug (14), to arrive near the electrode part of the spark plug again in the form of an air-fuel mixture (15a).
Public/Granted literature
- US20080022967A1 Direct-Injection Spark-Ignition Internal Combustion Engine Public/Granted day:2008-01-31
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