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公开(公告)号：EP2496822B1
公开(公告)日：2014-04-16
申请号：EP10763670.6
申请日：2010-09-30
申请人： Robert Bosch GmbH
发明人： GROTHE, Katja , CHRIST, Wilhelm , GANSERT, Klaus-Peter , KREHER, Thilo , RUECKERT, Frank, Ulrich , SUENDERHAUF, Gerhard , ZECK, Fridolin , SCHILLING, Marcus , KLING, Kerstin
CPC分类号： F02M61/10 , F02M61/12 , F02M61/168
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公开(公告)号：EP2496822A1
公开(公告)日：2012-09-12
申请号：EP10763670.6
申请日：2010-09-30
申请人： Robert Bosch GmbH
发明人： GROTHE, Katja , CHRIST, Wilhelm , GANSERT, Klaus-Peter , KREHER, Thilo , RUECKERT, Frank, Ulrich , SUENDERHAUF, Gerhard , ZECK, Fridolin , SCHILLING, Marcus , KLING, Kerstin
CPC分类号： F02M61/10 , F02M61/12 , F02M61/168
摘要： The invention relates to a fuel injector for an internal combustion engine, comprising a valve body (2), in which a valve needle (1) is arranged in a longitudinally movable manner, which with a valve needle tip (3) designed on the valve needle (1) cooperates with a valve seat of the valve body (2) that delimits a fuel-filled pressure chamber between the valve body (2) and valve needle (1), wherein a fuel flow to at least one injection opening is enabled or interrupted by means of the cooperation of the valve needle (1) with the valve seat (2), wherein the fuel is supplied continuously or discontinuously to the pressure chamber, and wherein a closing throttle is designed in the pressure chamber between the valve needle (1) and the valve body (2). According to the invention, a fuel injector is provided, wherein the closing process of the valve needle (1) is optimized by a closing throttle that is improved over the prior art. This is achieved by designing the closing throttle on a circumferentially sealing collar (8, 8a) using at least one segment-shaped recess (9, 9a), and the collar (8, 8a) is part of the valve needle guide region (11).
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公开(公告)号：EP1646772B1
公开(公告)日：2008-07-23
申请号：EP04762351.7
申请日：2004-07-07
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M61/1846 , F02B23/101 , F02B2023/103 , F02B2075/125 , F02M61/1833 , Y02T10/123 , Y02T10/125
摘要： A fuel injection system (1) comprising a fuel injection valve (2) which is provided with several injection openings (13) and which enables fuel to be injected into a combustion chamber (6) of an internal combustion engine, comprising an ignition device (8) which protrudes into the combustion chamber (6) and has at least one first pole (16) and one second pole (17). The fuel jets (20) exiting from the injection openings (13) form a substantially conical envelope shaped fuel fan (11). The end of the at least one first pole (16) is arranged to the side close to the end of the second pole (17) which protrudes into the combustion chamber (6). The two ends are located at approximately the same level of the longitudinal axis of the ignition device (8).
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公开(公告)号：EP1646772A1
公开(公告)日：2006-04-19
申请号：EP04762351.7
申请日：2004-07-07
申请人： ROBERT BOSCH GMBH
CPC分类号： F02M61/1846 , F02B23/101 , F02B2023/103 , F02B2075/125 , F02M61/1833 , Y02T10/123 , Y02T10/125
摘要： A fuel injection system (1) comprising a fuel injection valve (2) which is provided with several injection openings (13) and which enables fuel to be injected into a combustion chamber (6) of an internal combustion engine, comprising an ignition device (8) which protrudes into the combustion chamber (6) and has at least one first pole (16) and one second pole (17). The fuel jets (20) exiting from the injection openings (13) form a substantially conical envelope shaped fuel fan (11). The end of the at least one first pole (16) is arranged to the side close to the end of the second pole (17) which protrudes into the combustion chamber (6). The two ends are located at approximately the same level of the longitudinal axis of the ignition device (8).
摘要翻译： 1。一种燃料喷射系统（1），其包括设有多个喷射开口（13）并且能够将燃料喷射到内燃机的燃烧室（6）中的燃料喷射阀（2），所述燃料喷射系统包括点火装置 （6）中并且具有至少一个第一极（16）和一个第二极（17）。 从喷射口（13）排出的燃料射流（20）形成基本上圆锥形的包络形燃料风扇（11）。 至少一个第一极（16）的端部布置在靠近第二极（17）的突出到燃烧室（6）中的端部的一侧。 两端位于点火装置（8）的纵向轴线的大致相同的高度处。
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