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    Multi-cylinder internal combustion engine with a system for variable actuation of the intake valves and an injector housing having a raised sealing edge
    2.
    发明公开
    Multi-cylinder internal combustion engine with a system for variable actuation of the intake valves and an injector housing having a raised sealing edge 审中-公开
    与用于进气门的可变致动的系统和具有凸起的密封边缘的喷射器的多气缸内燃机

    公开(公告)号：EP2554830A1

    公开(公告)日：2013-02-06

    申请号：EP11176190.4

    申请日：2011-08-01

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Nasto, Rosario ,  Canino, Gianluca ,  Cuniberti, Marco

    IPC分类号： F02M61/14 ,  F01L9/02 ,  F02F1/24 ,  F02F7/00

    CPC分类号： F01L9/021 ,  F01L9/025 ,  F02F1/242 ,  F02F7/006 ,  F02M61/14 ,  F02M2200/855

    摘要： In a multi-cylinder internal combustion engine, provided with a system for variable actuation of the intake valves of the engine, the fuel injector (I) associated to each engine cylinder is surrounded by a sealing casing (57) which is part of a support body (19A-D; 70). The support body (19A-D; 70) is mounted on the engine cylinder head with the interposition of a support (50) surmounting the head and defining the seat in which the camshaft (11) is received and it defines a sealing peripheral edge cooperating with a sealing cover (58) which is mounted on the cylinder head. The cover (58) has a general base plane sealingly mounted on the cylinder head or on the support (50). The sealing peripheral edge of each sealing casing (57) is arranged in a parallel plane and raised with respect to the general base plane of the cover (58).

    摘要翻译： 在一个多缸内燃机中，设置有用于发动机的进气门的可变致动的系统，关联到每个发动机气缸的燃料喷射器（I）由密封外壳（57）的所有其是支持的一部分包围 体（19A-D; 70）。 所述支撑体（19A-D; 70）被安装在发动机气缸盖与支撑的超越头和限定，其中凸轮轴（11）被接收在座椅插置（50）和它定义的密封周缘相配合 与被安装在气缸盖中的密封盖（58）所有。 所述盖（58）具有密封地安装在气缸盖或在支撑（50）的一般基平面。 每个密封套管（57）的密封周缘的平面内平行布置并且相对于所述基座盖（58）的总平面凸起。

    Multi-cylinder internal combustion engine with a system for variable actuation of the intake valves subdivided into separate sub-units
    4.
    发明公开
    Multi-cylinder internal combustion engine with a system for variable actuation of the intake valves subdivided into separate sub-units 有权
    多缸内燃机与用于在单个亚基进气阀的可变致动的系统划分

    公开(公告)号：EP2554807A1

    公开(公告)日：2013-02-06

    申请号：EP11176174.8

    申请日：2011-08-01

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Cuniberti, Marco ,  Iannarelli, Luca ,  Canino, Gianluca ,  Nasto, Rosario

    IPC分类号： F01L9/02 ,  F02F7/00 ,  F02F1/24

    CPC分类号： F01L9/02 ,  F01L9/025 ,  F02F1/242 ,  F02F7/006

    摘要： In a multi-cylinder internal combustion engine, provided with a system for variable actuation of the intake valves of the engine, the hydraulic means and the solenoid valves for the variable actuation of the intake valves of the various cylinders are carried by independent support bodies (19A-D), part of independent sub-units (20A-D). The unit for variable actuation of the intake valves, constituted by the aforementioned sub-units (20A-D) is closed at the upper part by a cover (58) with the interposition of a sealing gasket (60). The sealing gasket has a main portion extending in a general plane for supporting the cover and respective portions (61A-D) associated to said sub-units (20A-D) projecting from said general plane, in positions arranged longitudinally adjacent to each other on one side of the cylinder head. Each of said portions (61A-D) has a three-dimensional development, with two lateral parts (62) contained in two planes substantially parallel to each other and orthogonal to said general plane and a central part (63) contained in a parallel plane and spaced from said base plane. The fuel injector associated to each engine cylinder is surrounded by a sealing casing which is part of a support body of the variable actuation means of the intake valves and which defines a sealing peripheral edge cooperating with the abovementioned sealing cover. The sealing peripheral edge of each injector casing is contained in a parallel plane and raised with respect to the general base plane of the abovementioned cover.

    摘要翻译： 在一个多缸内燃机中，设置有用于发动机的进气门的可变致动的系统中，液压装置和用于各种气缸的进气阀的可变致动的电磁阀是由独立于支撑体携带（ 图19A-D），独立的子单元（20A-D）的一部分。 用于进气阀的可变致动的单元，通过上述子单元（20A-D）构成在由盖（58）配有一个密封垫圈（60）的插入所述上部与四周封闭。 密封垫圈具有主要部分在一般的计划扩展用于支持关联到所述子单元（20A-D）中的位置从所述通用方案伸出的盖和相应部分（61A-D），其布置纵向相邻海誓山盟上 气缸盖的一侧。 每个所述部分（61A-D）的具有三维发展，用包含在两个平面内的两个侧部（62）大致平行于包含在平行平面彼此正交于所述大体平面和一个中心部分（63） 和从所述基部平面隔开。 关联到每个发动机气缸的燃料喷射器通过密封壳体的所有这是进气阀的可变致动装置并限定一个密封周缘与上述密封罩相配合的支撑体的一部分所包围。 每个喷射器壳体的密封周边边缘被包含在平行于平面并相对于基座上述盖的总平面凸起。

    Diesel engine having a system for variable control of the intake valves and inner exhaust gas recirculation
    8.
    发明公开
    Diesel engine having a system for variable control of the intake valves and inner exhaust gas recirculation 有权
    Dieselmotor mit variablerEinlassventilbetätigungund einer internenAbgasrückführung

    公开(公告)号：EP2184452A1

    公开(公告)日：2010-05-12

    申请号：EP08425714.6

    申请日：2008-11-07

    申请人： C.R.F. Società Consortile per Azioni

    发明人： Canino, Gianluca ,  Gentile, Luca ,  Peci, Davide ,  Vattaneo, Francesco

    IPC分类号： F01L9/02

    CPC分类号： F01L9/025 ,  F01L2001/34446

    摘要： A supercharged diesel engine is equipped with an electronically controlled hydraulic system for variable actuation of the intake valves of the engine. The cam that controls each intake valve (1) has an additional lobe (41) for causing an additional opening of the intake valve, during the exhaust stroke, so as to provide an exhaust-gas recirculation directly inside the engine. Said additional lobe is shaped in such a way as to give rise to a profile (B) of the additional lift of the valve as the crank angle varies with a boot conformation, including an initial stretch (B i ) with a gentler slope extending from a point (X) of zero lift corresponding to the expansion stroke in the engine cylinder. The engine is moreover equipped with a duct for exhaust-gas recirculation of the long-route type.

    摘要翻译： 增压柴油发动机配备有用于可变致动发动机进气门的电控液压系统。 控制每个进气门（1）的凸轮具有用于在排气冲程期间引起进气门额外打开的附加凸角（41），以便在发动机内直接提供废气再循环。 所述附加的凸角被成形为当曲柄角随靴形构型而变化时，形成阀的附加升程的轮廓（B），包括初始拉伸（B i），其具有从 与发动机气缸中的膨胀行程相对应的零升程点（X）。 此外，发动机还配备有用于长路线型排气再循环的管道。

    Internal combustion engine with intake valves having a variable actuation and a lift profile including a constant lift boot portion
    9.
    发明公开
    Internal combustion engine with intake valves having a variable actuation and a lift profile including a constant lift boot portion 有权
    具有可变驱动进气门和与恒定的行程概况部引导般的提升廓内燃机

    公开(公告)号：EP1936132A1

    公开(公告)日：2008-06-25

    申请号：EP06425851.0

    申请日：2006-12-20

    申请人： C.R.F. SOCIETÀ CONSORTILE PER AZIONI

    发明人： Canino, Gianluca ,  Gentile, Luca ,  Gianolio, Laura ,  Lisbona, Maria Grazia ,  Vattaneo, Francesco

    IPC分类号： F01L1/08 ,  F01L1/14 ,  F01L9/02 ,  F01L13/00 ,  F02D13/02

    CPC分类号： F01L9/025 ,  F01L1/08 ,  F01L1/143 ,  F01L9/021 ,  F01L13/0015 ,  F01L2001/0535 ,  F01L2001/34446 ,  F01L2800/10 ,  F01L2820/01 ,  F02D13/0219 ,  F02D13/023 ,  F02D13/0261 ,  F02D13/0269 ,  Y02T10/142

    摘要： An internal combustion engine is equipped with a variable actuation system for the intake valves (7) including a chamber of fluid under pressure (C) interposed between the intake valve (7) and the respective controlling cam, and a solenoid valve (24) whose opening causes the pressure chamber (C) to discharge such as to determine the rapid closure of the valve (7) by effect of the respective biasing spring means (9), even when the respective cam would tend to keep the valve open. The variable valve operation system is used in combination with the use of cams controlling the intake valves shaped in such a manner as to give rise to an intake valve lift profile including a boot portion (C2) at substantially constant lift. Such boot portion is provided in the initial part of the intake valve opening cycle, in advance with regard to the TDC, in the case of a supercharged direct-injection petrol engine. In the case of a diesel engine, on the contrary, the boot portion (C2) is provided in the final part of the intake valve opening cycle, after the BDC.

    摘要翻译： 内燃机配备有可变装置驱动系统的进气门（7）包括在压力下（C）的流体的腔室中的进气门之间（7）和所述respectivement控制凸轮，和一个电磁阀（24），其 开口使所述压力室（C）放电：如确定性矿由respectivement偏压弹簧装置（9）的效果的阀（7）的快速关闭，甚至当respectivement凸轮将趋向于保持阀打开。 可变气门手术系统结合使用与使用凸轮形控制在寻求的方式进气阀的，以产生在进气门升程曲线包括在基本恒定的升程的引导部（C2）。 搜索引导部被设置在所述进气门打开周期的初始部分设置，预先相对于TDC，在增压直喷式汽油发动机的情况下。 在柴油发动机的情况下，与此相反，在引导部（C2）在所述进气门打开周期的最后部分提供时，BDC之后。