产品范围

  • 客车及商用车中汽油和柴油发动机的气缸盖
  • 露出气门导管及阀座环或是带阀门与凸轮轴的安装就绪状态

产品聚焦 - 优势

  • 在内燃机中,气缸盖位于燃烧室中活塞上方。
  • 气缸盖包括用于气体交换控制系统的重要零部件,如:
    • 气体交换的进气道和排气道
    • 气门和配件
    • 摇臂或牵引杆
    • 挺杆
  • 气缸盖是发动机中最复杂的部件之一,需要制造工艺复杂且昂贵。除了上述固定部件,气缸盖还具备以下功能:
    • 密封气缸构成燃烧室
    • 吸收燃力
    • 供给气门驱动活动部件
    • 在水冷发动机中通过冷却水通道和冷却液导热或在风冷发动机中通过大量散热叶轮(通风机)导热。
  • 气缸内的燃烧过程对气缸盖形成了强大的压力。因此,气缸盖螺栓的标准必须符合制造商对于拧紧力矩的标准。
  • 为了防止扭曲变形,气缸盖螺栓必须依照 指定的拧紧程序进行装配。如果不遵守制 造商规定,可导致气缸盖、缸体或气门座 密封垫变形。

版本

乘用车气缸盖

  • 根据发动机类型有灰口铸铁或铝结构。
  • 满足需求和修理方,梅施提供光盖(配有座圈和气门套导管)、装有气门和气门弹簧的气缸盖部分总成或带气缸盖、气门和凸轮轴的完整总成。

单缸气缸盖

  • 单气缸盖用于多数商务车发动机。
  • 有不同种类的气缸盖,如:使用灰口铸铁的水冷气缸盖(左侧图片)或铝制风冷气缸盖(右侧图片)。
  • 优势在于损坏情况下,它们可单独更换。

多缸气缸盖

多气缸盖主要用于客车发动机,但也用于商务车发动机。具有多缸气缸盖的 V 型发动机的每个气缸列有一个气缸盖。在具有多缸气缸盖的发动机中,凸轮轴通常置于气缸盖中。具有多缸气缸盖的发动机一般为水冷式。

水冷式气缸盖

除了少数例外,现代发动机大多采用水冷式。通常,由水、防冻剂和防腐剂组成的混合物用作冷却液。

优点:

  • 冷却液可以吸收和带走较多的热量。
  • 通过气缸和气缸盖之间的冷却通道可以更有效地实现发动机内部的冷却。

    风冷式气缸盖

    空气可以直接进入发动机。为了增大散热面,风冷发动机的气缸和气缸盖有散热叶轮。

    优点:

    • 结构简单,成本较低
    • 产品工作性能稳定
    • 重量更轻
    • 在室外温度很低时无冷却液冻结问题

    恒量节流阀

    所有 5.5 吨以上的客车和所有 9 吨以上商用车必须配备连续制动系统。通过恒定节流阀或减压制动器,在压缩冲程结束时将开启一个额外的气门。需要压缩的气体被导入到一个单独的空间,然后再进入燃烧室或直接进入排气管。这确保了在工作行程中不向曲轴施加更多的压力,并且不产生新的驱动力。气门通过气动或液压装置进行控制。通过使用恒定节流阀,每1升排气量的制动功率可以达到 14-20 千瓦。

    Cookie 的使用和数据保护

    Motorservice Group uses cookies saved to your device in order to optimize and continuously improve its websites, as well as for statistical purposes. Further information on our use of cookies can be found here, together with our publication details and data protection notice.

    By clicking on “OK” you confirm that you have taken note of the information on cookies, the data protection declaration and the publication details. You can also change your cookie settings for this website at any time.

    隐私设置

    We place great importance on transparent information relating to all aspects of data protection. Our website contains detailed information on the settings you can select and what effect these settings have. You can change your selected settings at any time. Regardless of the selection you choose, we will not draw any conclusions regarding you as a person (except where you have explicitly entered your details). For information on deleting the cookies, please see the help function in your browser. You can find out more in the data protection declaration.

    单击相应按钮更改您的隐私设置

    要求

    Cookies essential for the system ensure that the website works correctly. Without these cookies, malfunctions or error messages may occur.

    本网站将:

    • Store cookies required by the system
    • Store the settings you make on this website

    在此设置下,本网页永远不会:

    • Store your settings, such as the language selection or cookie banner, so that you do not have to repeat them in the future.
    • Evaluate visits anonymously and draw conclusions to help us to optimize our website.
    • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)

    方便

    These cookies make the website easier to use and save settings, for example, so that you do not have to repeat them every time you visit the site.

    本网站将:

    • Store cookies required by the system
    • Store your settings, such as the language selection or cookie banner, so that you do not have to repeat them in the future.

    在此设置下,本网页永远不会:

    • Evaluate visits anonymously and draw conclusions to help us to optimize our website.
    • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)

    统计

    Statistics cookies enable us to evaluate the usage behaviour on the website anonymously – without enabling any conclusions to be drawn about you as a person. This enables us to measure the performance of the website and to improve it continuously to offer a better user experience.

    本网站将:

    • Store cookies required by the system
    • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)
    • Evaluate visits anonymously and draw conclusions to help us to optimize our website.

    在此设置下,本网页永远不会:

    • Draw conclusions regarding you as a person (except where you have explicitly entered your details, e.g. in contact forms)

    当然,我们通常会遵守浏览器的请勿追踪 (DNT) 设置。在这种情况下,不会设置追踪 Cookie,也不会加载追踪功能。