CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE

    公开(公告)号:US20180106213A1

    公开(公告)日:2018-04-19

    申请号:US15570076

    申请日:2016-05-04

    申请人: AVL LIST GMBH

    摘要: The invention relates to a cylinder head (4) for an internal combustion engine having liquid cooling, comprising at least two outlet valves for controlling outlet openings (14) and at least one inlet valve for controlling at least one inlet opening (15) per cylinder (2), having at least one cooling jacket (3) through which coolant flows. An outlet valve bridge (7) is arranged between two adjacent outlet valves and an inlet/outlet valve bridge (8) is arranged in each case between at least one outlet valve and an adjacent inlet valve. A first cooling channel (18) is arranged in the region of at least one outlet valve bridge (7), and a second cooling channel (19) is arranged in the region of at least one inlet/outlet valve bridge (8), and the first and second cooling channels (18, 19) are fluidically connected to one other in a central cooling region (20) of the cylinder (2) with one another. According to the invention, in order to improve the cooling in the region of the inlet/outlet valve bridges and in the region of the outlet valve guides, at least one second cooling channel (19) has a flow dividing arrangement (21) which sub-divides the second cooling channel (19) into a first part-channel (19a) and a second part-channel (19b), wherein preferably the first part-channel (19a) is arranged in the region of an outlet valve guide (14a) and the second part-channel (19b) is arranged in the region of an outlet valve seat (14b) of the adjacent outlet valve.

    COMBUSTION CHAMBER STRUCTURE FOR ENGINE
    7.
    发明申请
    COMBUSTION CHAMBER STRUCTURE FOR ENGINE 审中-公开
    发动机燃烧室结构

    公开(公告)号:US20160201551A1

    公开(公告)日:2016-07-14

    申请号:US14980243

    申请日:2015-12-28

    IPC分类号: F02B23/10 F02F1/42 F02F3/28

    摘要: A combustion chamber structure for an engine is provided. The structure includes a piston formed with a downward dented cavity in a central part of an upper surface thereof, and a cylinder head forming a combustion chamber having a pent-roof shape. The upper surface of the piston has an annular part extending from an outer edge of the cavity to an outer edge of the upper surface, and surrounding the outer edge of the cavity. The annular part is formed with first and second piston upper surface portions. When the piston is at a top dead center, a ratio of a volume of a space formed between the first piston upper surface portion and a bottom surface of the cylinder head with respect to a volume of a space formed between the second piston upper surface portion and the bottom surface becomes below a predetermined value.

    摘要翻译: 提供了一种用于发动机的燃烧室结构。 该结构包括在其上表面的中心部分形成有向下凹陷腔的活塞和形成具有顶顶形状的燃烧室的气缸盖。 活塞的上表面具有从空腔的外边缘延伸到上表面的外边缘并围绕空腔的外边缘的环形部分。 环形部分形成有第一和第二活塞上表面部分。 当活塞处于上止点时,形成在第一活塞上表面部分和气缸盖底面之间的空间的体积相对于形成在第二活塞上表面部分 并且底面变得低于预定值。

    INTERNAL COMBUSTION ENGINE
    8.
    发明申请
    INTERNAL COMBUSTION ENGINE 有权
    内燃机

    公开(公告)号:US20160025033A1

    公开(公告)日:2016-01-28

    申请号:US14759145

    申请日:2013-12-05

    申请人: AUDI AG

    发明人: MATTHIAS ORTMANN

    IPC分类号: F02F1/40 F02F1/42 F01P3/02

    摘要: An internal combustion engine includes a plurality of cylinders, each of which two intake valves and two exhaust valves, respectively arranged in a valve mount of a cylinder head of the internal combustion engine as well as a coolant distributing chamber and a coolant accumulating chamber being associated to. For each cylinder two coolant ducts are formed in the cylinder head and each is fluidly connected to the corresponding coolant distributing chamber and the corresponding coolant accumulating chamber. A first one of the coolant ducts on a first side extends about a first one of the intake valves and on a second side opposite the first side about a first one of the exhaust valves, and a second one of the coolant ducts extends on the first side about a second one of the intake valves and on the second side about a second one of the exhaust valves.

    摘要翻译: 内燃机包括多个气缸,每个缸分别设置在内燃机的汽缸盖的阀座中以及冷却剂分配室和冷却剂积存室相连接的两个进气门和两个排气门 至。 对于每个气缸,两个冷却剂管道形成在气缸盖中,并且每个冷却剂管道流体连接到相应的冷却剂分配室和相应的冷却剂积聚室。 第一侧的冷却剂管道中的第一个围绕第一个进气门延伸,并且围绕第一个排气阀在第一侧相对的第二侧上延伸,第二个冷却剂管道在第一个 一侧围绕第二进气门,第二侧围绕第二排气门。

    Cylinder head sleeve for a fuel injector or ignitor of an engine
    9.
    发明授权
    Cylinder head sleeve for a fuel injector or ignitor of an engine 有权
    用于燃油喷射器或发动机点火器的气缸盖套筒

    公开(公告)号:US08544450B2

    公开(公告)日:2013-10-01

    申请号:US12578936

    申请日:2009-10-14

    IPC分类号: F02M61/14

    CPC分类号: F02F1/4214 F02F1/242 F02F1/40

    摘要: A cylinder head sleeve for an engine is provided comprising a sleeve first part and a sleeve second part which form a cavity to contain a fuel injector or an ignitor, and wherein the sleeve first part and the sleeve second part which form a joint for the sleeve first part and the sleeve second part to move relative to each other. A cylinder head assembly is also provided comprising the sleeve and a cylinder head, as well as a method of providing the cylinder head assembly.

    摘要翻译: 提供了一种用于发动机的气缸盖套筒,其包括套筒第一部分和套筒第二部分,其形成空腔以容纳燃料喷射器或点火器,并且其中套筒第一部分和套筒第二部分形成用于套筒的接头 第一部分和袖子第二部分相对于彼此移动。 还提供了一种气缸盖组件,其包括套筒和气缸盖,以及提供气缸盖组件的方法。