cylinder head

简明释义

汽缸盖

英英释义

例句

1.The cylinder head gasket needs to be replaced during a rebuild.

在重建过程中需要更换气缸盖垫圈。

2.We found oil leaking from the cylinder head after the inspection.

检查后我们发现气缸盖漏油。

3.Replacing a damaged cylinder head is crucial for engine performance.

更换损坏的气缸盖对发动机性能至关重要。

4.A warped cylinder head can lead to engine overheating.

变形的气缸盖可能导致发动机过热。

5.The mechanic inspected the cylinder head for any signs of cracks.

机械师检查了气缸盖是否有裂痕。

作文

The engine of a car is a complex system that requires various components to work together seamlessly. One of the most crucial parts of this system is the cylinder head, which plays a vital role in the overall performance of the engine. The cylinder head is located at the top of the engine block and serves as a cover for the cylinders, where fuel and air are mixed and combusted. It is an essential component because it houses the valves, spark plugs, and fuel injectors, all of which contribute to the engine's functionality.Understanding the function of the cylinder head is important for anyone interested in automotive engineering or mechanics. When the engine operates, the cylinder head helps to create the necessary pressure for combustion by sealing the cylinders. This sealing ensures that the air-fuel mixture remains contained within the cylinder during the compression stroke, which is critical for generating the power needed to propel the vehicle forward.In addition to its sealing capabilities, the cylinder head also facilitates the expulsion of exhaust gases. After the fuel has been combusted, the spent gases must exit the cylinder efficiently. The cylinder head contains exhaust ports that guide these gases out of the engine and into the exhaust system. A well-designed cylinder head can significantly improve the efficiency of the engine by optimizing airflow, thus enhancing performance and fuel economy.Another aspect of the cylinder head that merits attention is its construction material. Traditionally, cylinder heads were made from cast iron due to its durability and heat resistance. However, advancements in technology have led to the use of aluminum alloys, which are lighter and provide better thermal conductivity. This shift not only reduces the overall weight of the engine but also helps in dissipating heat more effectively, preventing overheating and ensuring longevity.Moreover, the design of the cylinder head can vary significantly between different types of engines. For instance, high-performance engines often feature multi-valve designs, where each cylinder has multiple intake and exhaust valves. This configuration allows for better airflow and increased power output. In contrast, simpler engines may have a single overhead camshaft (SOHC) design, which is less complex but may not deliver the same level of performance.Maintenance of the cylinder head is also crucial for the health of the engine. Over time, the cylinder head can develop cracks or warping due to extreme heat and pressure conditions. Regular inspections and timely repairs can prevent catastrophic engine failure. Mechanics often recommend checking the cylinder head for leaks and ensuring that the gasket, which seals the cylinder head to the engine block, is in good condition.In conclusion, the cylinder head is an integral part of an engine that contributes significantly to its performance and efficiency. Understanding its functions and maintenance needs is essential for anyone involved in automotive repair or engineering. As technology continues to evolve, so too will the design and materials used for cylinder heads, leading to even greater advancements in engine performance and reliability.

汽车发动机是一个复杂的系统，需要各种组件无缝协作。其中最关键的部分之一是气缸盖，它在发动机的整体性能中发挥着重要作用。气缸盖位于发动机缸体的顶部，作为气缸的盖子，燃料和空气在此混合并燃烧。它是一个必不可少的组件，因为它容纳了阀门、火花塞和喷油器，所有这些都对发动机的功能有贡献。理解气缸盖的功能对于任何对汽车工程或机械感兴趣的人来说都是重要的。当发动机运转时，气缸盖通过密封气缸来帮助创造燃烧所需的压力。这种密封确保空气-燃料混合物在压缩行程期间保持在气缸内，这对于产生推动车辆前进所需的动力至关重要。除了密封能力外，气缸盖还促进废气的排出。在燃料燃烧后，废气必须有效地从气缸中排出。气缸盖包含引导这些气体进入排气系统的排气口。设计良好的气缸盖可以通过优化气流显著提高发动机的效率，从而增强性能和燃油经济性。气缸盖的构造材料也是一个值得关注的方面。传统上，气缸盖是由铸铁制成的，因为它的耐用性和耐热性。然而，技术的进步导致铝合金的使用，这种材料更轻且提供更好的导热性。这一变化不仅减少了发动机的整体重量，还帮助更有效地散热，防止过热并确保使用寿命。此外，气缸盖的设计在不同类型的发动机之间可能会有显著差异。例如，高性能发动机通常具有多气门设计，每个气缸有多个进气和排气阀。该配置允许更好的气流和更高的功率输出。相比之下，简单的发动机可能采用单顶置凸轮轴（SOHC）设计，这种设计较为简单，但可能无法提供相同水平的性能。气缸盖的维护对于发动机的健康也至关重要。随着时间的推移，气缸盖可能因极端的热量和压力条件而出现裂纹或变形。定期检查和及时修理可以防止灾难性的发动机故障。机械师通常建议检查气缸盖是否有泄漏，并确保将气缸盖密封到发动机缸体的垫圈状况良好。总之，气缸盖是发动机的一个重要部分，对其性能和效率贡献显著。了解其功能和维护需求对于任何参与汽车维修或工程的人来说都是必不可少的。随着技术的不断发展，气缸盖的设计和材料也将不断演变，带来更大的发动机性能和可靠性的进步。