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1. 发明申请

WO2007104366A3 FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINES 审中-公开
标题翻译：内燃机燃油喷射阀
公开(公告)号：WO2007104366A3
公开(公告)日：2007-10-25
申请号：PCT/EP2006066165
申请日：2006-09-08
申请人： BOSCH GMBH ROBERT , JUNGER DIETER , SCHLUND WOLFGANG , FISCHER JOERG-PETER , KAESS REINER , ARLETH HEIDI , KRIEGSMANN GUENTER , OHLHAFER OLAF
发明人： JUNGER DIETER , SCHLUND WOLFGANG , FISCHER JOERG-PETER , KAESS REINER , ARLETH HEIDI , KRIEGSMANN GUENTER , OHLHAFER OLAF
IPC分类号： F02M45/08 , F02M61/12
CPC分类号： F02M61/12 , F02M45/086 , F02M61/042 , F02M61/163 , F02M61/182 , F02M2200/02 , F02M2200/46
摘要： The invention relates to a fuel injection valve for internal combustion engines comprising a hollow needle (7) for opening and closing at least one external injection opening (8) which interacts with a valve seat (4). An internal needle (5) which interacts with the valve seat (4) for opening and closing at least one internal injection opening (6) which is arranged in the hollow needle (7), and an intermediate chamber (15) which is embodied between the hollow needle (7) and the inner needle (5), said hollow needle being connected to a pressure chamber (11) which surrounds the hollow needle (7) via an opening (24) in the hollow needle (7). The inner needle (5) is guided to a guiding section (14), which is close to the valve seat, in the hollow needle (7). At least one passage (30, 32) is formed on the guiding section (14) through which the fuel can flow from the intermediate chamber (15) to the inner injection opening (6, 8). At least one passage (30, 32) is formed such that a tangential force is exerted upon the inner needle (5) when the fuel is cross-flown.
摘要翻译：用于内燃发动机的燃料喷射阀具有用于与阀座（4）打开和关闭的至少一个外注射开口（8）的中空针（7）配合。在所述中空针（7）布置的内针（5），其与所述阀座（4），用于打开和关闭至少一个内注射开口（6），所述中空针（7）之间和内针（5）的中间空间也配合通过围绕所述中空针（7）的中空针（7）的压力室（11）中的开口（24）形成（15）连接。由燃料形成为从所述中间空间（15）内;在所述中空针（7），其中，所述引导部分（14）的至少一个通路（32 30）引导的内针（5）与阀座接近引导部（14）注入口（6; 8）可以流动。至少一个通道（30; 32）被成形为当内针（5）流过燃料时在内针（5）上施加切向力。

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