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    CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE
    1.
    发明公开
    CYLINDER HEAD FOR INTERNAL COMBUSTION ENGINE 审中-公开

    公开(公告)号：EP3382186A1

    公开(公告)日：2018-10-03

    申请号：EP18162568.2

    申请日：2018-03-19

    申请人： Toyota Jidosha Kabushiki Kaisha

    发明人： NAKAYAMA, Masao ,  ASANO, Masahiko

    IPC分类号： F02F1/40 ,  F02F1/24

    CPC分类号： F02F1/40 ,  F01P3/02 ,  F01P2003/024 ,  F02F1/242 ,  F02F1/4285

    摘要： A cylinder head (100) in an internal combustion engine includes a cylinder head main body (101) in which a plurality of combustion chambers (10a to 10d) is arranged and a pipe member (110, 120) that extends along a direction in which the combustion chambers (10a to 10d) are arranged, through which a refrigerant flows, and which is embedded in the cylinder head main body (101). The pipe member (110, 120) is provided with a curved portion (113a to 113d and 123a to 123d) that is curved and the curved portion (113a to 113d and 123a to 123d) is provided with a throttle region (115a to 115d and 125a to 125d) in which a sectional area is partially reduced.

    ZYLINDERKOPF FÜR EINE BRENNKRAFTMASCHINE
    2.
    发明公开
    ZYLINDERKOPF FÜR EINE BRENNKRAFTMASCHINE 审中-公开
    用于内燃机的气缸盖

    公开(公告)号：EP3292293A1

    公开(公告)日：2018-03-14

    申请号：EP16736760.6

    申请日：2016-05-04

    申请人： AVL List GmbH

    发明人： KNOLLMAYR, Christof

    IPC分类号： F02F1/40 ,  F02F1/42 ,  F01P3/14 ,  F02F1/24 ,  F01P3/02 ,  F02F1/36 ,  F01P1/08

    CPC分类号： F02F1/40 ,  F01P3/02 ,  F01P2003/024 ,  F02F1/243 ,  F02F1/36 ,  F02F1/4214

    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.

    CYLINDER HEAD OF MULTI-CYLINDER ENGINE
    4.
    发明公开
    CYLINDER HEAD OF MULTI-CYLINDER ENGINE 审中-公开
    多缸发动机气缸盖

    公开(公告)号：EP3218584A1

    公开(公告)日：2017-09-20

    申请号：EP15801927.3

    申请日：2015-11-10

    申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： TOFUKUJI, Satoko

    IPC分类号： F01P3/02 ,  F02F1/40

    CPC分类号： F01P3/02 ,  F01P2003/024 ,  F02F1/242 ,  F02F1/40 ,  F02F1/4235 ,  F02F1/4264

    摘要： A first coolant flow passage (34) is provided to extend in a longitudinal direction of a cylinder head (101). In at least one of cross sections perpendicular to the longitudinal direction, the first coolant flow passage (34) is located between a flat plane (SI) including central axes of a plurality of combustion chambers (4) and parallel to the longitudinal direction and a central line plane (S2) including central lines of a plurality of intake ports (2). In at least one of cross sections perpendicular to the longitudinal direction, at least a portion (20g) of a second coolant flow passage is located between the combustion chamber (4) and the first coolant flow passage (34). A coolant at a temperature lower than that of a coolant flowing in the second coolant flow passage (20g) flows in the first coolant flow passage (34).

    摘要翻译： 第一冷却剂流动通道（34）设置成在气缸盖（101）的纵向方向上延伸。 第一冷却剂流动通道（34）在垂直于纵向方向的至少一个横截面中位于包括多个燃烧室（4）的中心轴线且平行于纵向方向的平坦平面（SI）和 中心线平面（S2）包括多个进气口（2）的中心线。 在垂直于纵向的至少一个横截面中，第二冷却剂流动通道的至少一部分（20g）位于燃烧室（4）和第一冷却剂流动通道（34）之间。 温度低于在第二冷却剂流动通道（20g）中流动的冷却剂的温度的冷却剂在第一冷却剂流动通道（34）中流动。

    CYLINDER HEAD COOLING APPARATUS OF ENGINE
    7.
    发明公开
    CYLINDER HEAD COOLING APPARATUS OF ENGINE 有权
    ZYLINDERKOPFKÜHLUNGSVORRICHTUNGEINES MOTORS

    公开(公告)号：EP3006710A1

    公开(公告)日：2016-04-13

    申请号：EP15183568.3

    申请日：2015-09-02

    申请人： Kubota Corporation

    发明人： NAGAI, Kentaro ,  KUWASAKI, Hiroshi ,  NAKANO, Tadashi ,  HAMASAKI, Takahito ,  TANAKA, Yoshinori ,  MORI, Masaya

    IPC分类号： F02F1/40

    CPC分类号： F01P3/02 ,  F01P11/04 ,  F01P2003/021 ,  F01P2003/024 ,  F02F1/14 ,  F02F1/40 ,  F02F1/4285 ,  F02M35/10091 ,  F02M35/104

    摘要： There is provided a cylinder head cooling apparatus of an engine capable of enhancing cooling efficiency around an auxiliary combustion chamber wall. The cylinder head cooling apparatus of an engine including a cylinder head 1 having therein an intake port 2, an exhaust port 3, an auxiliary combustion chamber 4, and a cooling water jacket 5, in which an intake port wall 2a, an exhaust port wall 3a, and an auxiliary combustion chamber wall 4a are placed in the cooling water jacket 5, the cooling water jacket 5 includes a cooling water inlet 5a and a cooling water outlet 5b, engine cooling water 6 flowed from the cooling water inlet 5a into the cooling water jacket 5 flows out from the cooling water outlet 5b through the cooling water jacket 5, wherein a cooling water guide wall 7 is provided upstream of the auxiliary combustion chamber wall 4a in a cooling water passing path of the cooling water jacket 5, and the upstream cooling water guide wall 7 is formed into a shape whose width gradually widens toward a downstream side.

    摘要翻译： 提供了能够提高辅助燃烧室壁周围的冷却效率的发动机的气缸盖冷却装置。 发动机的气缸盖冷却装置，其具有气缸盖1，气缸盖1具有进气口2，排气口3，辅助燃烧室4和冷却水套5，其中进气口壁2a，排气口壁 如图3a所示，辅助燃烧室壁4a放置在冷却水套5中，冷却水套5包括冷却水入口5a和冷却水出口5b，从冷却水入口5a流入冷却水入口5a的发动机冷却水6 水套5通过冷却水套5从冷却水出口5b流出，其中在冷却水套5的冷却水通过路径中的辅助燃烧室壁4a的上游设置有冷却水引导壁7， 上游冷却导水壁7形成为宽度朝向下游侧逐渐变宽的形状。