Engine cylinder head
    3.
    发明授权
    Engine cylinder head 有权
    发动机气缸盖

    公开(公告)号:US06470865B2

    公开(公告)日:2002-10-29

    申请号:US09973739

    申请日:2001-10-11

    IPC分类号: F02M2507

    摘要: An engine cylinder head in which a water jacket and an EGR passage are formed therein, the EGR passage opening into an exhaust passage at one end and opening into a side of an intake side at the other end thereof, the engine cylinder being characterized in that the EGR passage is provided outwardly in a cylinder arrangement direction of head bolt pass-through holes formed in one end of the engine cylinder head in the cylinder arrangement direction. Thus, because the EGR passage can be made much longer, the cooling capacity for re-circulating gas can be improved. Moreover, because the EGR passage can be provided without head bolts being spaced apart from the combustion chamber, the surface pressure around combustion chambers in the cylinder head relative to a cylinder block can be prevented from being lowered.

    摘要翻译: 一种发动机气缸盖,其中形成有一个水套和一个EGR通道,该EGR通道在另一端开入一端的排气通道和一个进气侧的侧面,其特征在于: EGR通道沿着气缸排列方向在发动机气缸盖的一端形成的头螺栓通孔的气缸排列方向向外设置。 因此,由于可以使EGR通路长得多,所以可以提高再循环气体的冷却能力。 此外,由于在没有与燃烧室隔开的头螺栓的情况下可以设置EGR通路,所以能够防止气缸盖内的燃烧室周围相对于气缸体的表面压力的降低。

    Multi-cylinder engine
    4.
    发明授权
    Multi-cylinder engine 失效
    多缸发动机

    公开(公告)号:US06615796B2

    公开(公告)日:2003-09-09

    申请号:US10143853

    申请日:2002-05-14

    IPC分类号: F02P1502

    摘要: In multi-cylinder engine in which an intake valve and a first spark plug arranged side by side along an axis of a camshaft and an exhaust valve and a second spark plug arranged side by side along the axis of the camshaft are disposed in a cylinder head for every combustion chamber, the position of a central portion of an upstream end of an intake port provided in the cylinder head with the intake valve interposed between the intake port and each of the combustion chambers and the position of a central portion of a downstream end of an exhaust port provided in the cylinder head with the exhaust valve interposed between the exhaust port and each of the combustion chambers are set to correspond with each other in the direction along the axis of the camshaft. Thus, the length of the cylinder head is reduced.

    摘要翻译: 在多气缸发动机中,沿着凸轮轴的轴线并排布置的沿凸轮轴和排气门并排配置的进气门和第一火花塞以及沿着凸轮轴的轴线并排设置的第二火花塞在多缸发动机中设置在气缸盖 对于每个燃烧室,设置在气缸盖中的进气口的上游端的中心部分的位置与进气门插入在进气口和每个燃烧室之间以及下游端的中心部分的位置 设置在气缸盖中的排气口设置在排气口和每个燃烧室之间的排气阀沿着凸轮轴的轴线的方向彼此对应。 因此,气缸盖的长度减小。

    Valve operating system in internal combustion engine
    5.
    发明授权
    Valve operating system in internal combustion engine 失效
    内燃机阀门操作系统

    公开(公告)号:US5845614A

    公开(公告)日:1998-12-08

    申请号:US972241

    申请日:1997-11-18

    IPC分类号: F01L13/00 F01L1/26

    CPC分类号: F01L1/267 F01L2105/02

    摘要: A valve operating system includes a connection switch-over device provided in a plurality of cam followers. The connection switch-over device has a piston moved in response to a change in hydraulic pressure in a hydraulic pressure chamber. A roller shaft is disposed on at least one of the cam followers and has a roller carried thereon to come into rolling contact with a valve operating cam. In this valve operating system, the hydraulic pressure chamber and a communication passage, which permits an oil supply passage to communicate with the hydraulic pressure chamber, are defined in a particular one of all the cam followers, which moves a smallest amount when the connection switch-over device is in its disconnecting state. The roller shaft, having the roller rotatably carried thereon, is mounted on the cam follower other than the particular one cam follower. Thus, it is possible to avoid an increase in size of the particular one cam follower, and avoid a complicated assembling operation and passage construction. Moreover, the valve operating load is reduced to a minimum by using the roller.

    摘要翻译: 阀操作系统包括设置在多个凸轮从动件中的连接切换装置。 连接切换装置具有响应于液压室中的液压变化而移动的活塞。 辊轴设置在至少一个凸轮从动件上,并具有一个承载在其上以与阀操作凸轮滚动接触的辊。 在该阀操作系统中,液压压力室和允许供油通道与液压室连通的连通通道被限定在所有凸轮从动件中的特定的一个中,当连接开关 -over设备处于断开状态。 具有可旋转地承载在其上的辊的辊轴安装在除特定的一个凸轮从动件之外的凸轮从动件上。 因此,可以避免特定的一个凸轮从动件的尺寸的增加,并且避免复杂的组装操作和通道构造。 此外,通过使用辊将阀的操作负荷降低到最小。