crankcase

简明释义

英[ˈkræŋkkeɪs]美[ˈkræŋkˌkeɪs]

n. 曲轴箱；曲柄箱

英英释义

单词用法

同义词

反义词

例句

1.The crankcase ventilation system carries fresh air through the crankcase.

曲轴箱通风系统要携带新鲜的空气通过曲轴箱。

2.The fresh - air inlet was usually the crankcase breather cap.

新鲜空气进口一般是曲轴箱通气盖。

3.Moisture from water vapor in the blow-by gases can enter the crankcase.

水分水汽在井喷的气体可以进入曲轴箱。

4.The crankcase is the lower part of the engine cylinder block .

曲轴箱是发动机气缸体较低的部分。

5.These new tests can ensure better durability of engine at high temperature and high levels of soot in the crankcase.

这些新试验能确保提高发动机在高温和高烟炱工况下的耐久性。

6.One half of the negative mould and the 'inside of the crankcase' mounted.

其中一半的负面模具和'内的曲轴箱'展开。

7.The oil pump draws oil from the crankcase and circulates it through the engine.

油泵从曲轴箱抽取油并将其循环到发动机中。

8.He removed the cover of the crankcase to inspect the internal components.

他拆下了曲轴箱的盖子，以检查内部组件。

9.The mechanic checked the oil level in the crankcase to ensure the engine was properly lubricated.

机械师检查了曲轴箱中的油位，以确保发动机得到适当的润滑。

10.A crack in the crankcase can lead to serious engine problems.

在曲轴箱上的裂缝可能会导致严重的发动机问题。

11.After the accident, the crankcase was damaged and needed replacement.

事故后，曲轴箱受损，需要更换。

作文

The engine of a vehicle is a complex system that requires various components to work together efficiently. One of the critical parts of an internal combustion engine is the crankcase, which serves as the housing for the crankshaft and other related components. The crankcase plays a vital role in the overall operation of the engine, as it not only supports the crankshaft but also contains the oil necessary for lubrication. Without a properly functioning crankcase, the engine would be prone to overheating and excessive wear, leading to potential failure.The design of the crankcase is crucial for maintaining the integrity of the engine. Typically made from cast iron or aluminum, the crankcase must be sturdy enough to withstand the forces generated during engine operation. Additionally, it needs to be sealed effectively to prevent oil leaks, which can lead to a decrease in lubrication and ultimately damage the engine. Engineers pay close attention to the design and materials used in the crankcase to ensure durability and performance.Another significant function of the crankcase is to act as a reservoir for engine oil. The oil within the crankcase circulates through the engine, lubricating moving parts and helping to dissipate heat. Regular maintenance, such as oil changes, is essential to keep the oil clean and effective. Over time, contaminants can build up in the oil, reducing its ability to lubricate the engine properly. If the oil becomes too dirty, it can lead to increased friction and wear on engine components, making it vital to monitor the condition of the oil in the crankcase.In addition to its mechanical functions, the crankcase also plays a role in the overall efficiency of the engine. A well-designed crankcase can help reduce engine noise and vibration, contributing to a smoother ride. Furthermore, advancements in technology have led to innovations in crankcase design, including improved shapes and materials that enhance performance and reduce weight. This is particularly important in modern vehicles, where fuel efficiency and emissions are critical considerations.Moreover, understanding the crankcase is essential for anyone involved in automotive repair or engineering. Mechanics often inspect the crankcase for signs of damage or wear during routine maintenance. Cracks or deformities in the crankcase can indicate serious issues that may require immediate attention. By recognizing the importance of the crankcase, automotive professionals can better diagnose problems and recommend appropriate solutions.In summary, the crankcase is an integral component of an internal combustion engine, serving multiple functions that are essential for optimal performance. From housing the crankshaft to acting as an oil reservoir, the crankcase contributes significantly to the engine's operation and longevity. As technology continues to advance, the design and functionality of the crankcase will likely evolve, further enhancing the efficiency and reliability of modern engines. For anyone interested in automotive mechanics, a thorough understanding of the crankcase and its role in engine performance is invaluable.

车辆的发动机是一个复杂的系统，需要各种组件有效地协同工作。内燃机的关键部分之一是曲轴箱，它作为曲轴和其他相关组件的外壳。曲轴箱在发动机的整体运行中起着至关重要的作用，因为它不仅支撑曲轴，还包含润滑所需的油。没有正常运作的曲轴箱，发动机将容易过热和过度磨损，导致潜在的故障。曲轴箱的设计对于保持发动机的完整性至关重要。通常由铸铁或铝制成，曲轴箱必须足够坚固，以承受发动机运行时产生的力量。此外，它需要有效密封，以防止油泄漏，这可能导致润滑减少并最终损坏发动机。工程师在设计和材料选择上对曲轴箱给予了高度重视，以确保耐用性和性能。曲轴箱的另一个重要功能是作为发动机油的储存库。曲轴箱内的油在发动机中循环，为活动部件提供润滑，并帮助散热。定期维护，如换油，对于保持油的清洁和有效性至关重要。随着时间的推移，污染物会在油中积聚，降低其润滑发动机的能力。如果油变得过于脏污，可能导致摩擦增加和发动机组件磨损，因此监测曲轴箱中油的状态至关重要。除了机械功能外，曲轴箱还在发动机的整体效率中发挥作用。设计良好的曲轴箱能够帮助减少发动机噪音和振动，从而带来更平稳的驾驶体验。此外，技术的进步推动了曲轴箱设计的创新，包括改进的形状和材料，以增强性能和减轻重量。这在现代车辆中尤为重要，因为燃油效率和排放是关键考虑因素。此外，了解曲轴箱对于任何从事汽车维修或工程的人都是必不可少的。机械师在常规维护期间经常检查曲轴箱是否有损坏或磨损的迹象。曲轴箱中的裂缝或变形可能表明严重问题，可能需要立即处理。通过认识到曲轴箱的重要性，汽车专业人员可以更好地诊断问题并推荐适当的解决方案。总之，曲轴箱是内燃机的重要组成部分，承担着多项对最佳性能至关重要的功能。从容纳曲轴到充当油的储存库，曲轴箱对发动机的运行和寿命有着重要贡献。随着技术的不断进步，曲轴箱的设计和功能可能会不断演变，进一步提高现代发动机的效率和可靠性。对于任何对汽车机械感兴趣的人来说，全面了解曲轴箱及其在发动机性能中的作用是无价的。