four-cycle marine diesel engine

简明释义

四冲程船用柴油机

英英释义

例句

1.The four-cycle marine diesel engine is known for its durability and reliability in harsh marine environments.

四冲程海洋柴油发动机以其在恶劣海洋环境中的耐用性和可靠性而闻名。

2.During the maintenance check, the technician inspected the four-cycle marine diesel engine for any signs of wear and tear.

在维护检查中，技术员检查了四冲程海洋柴油发动机是否有磨损迹象。

3.Many modern ships utilize a four-cycle marine diesel engine to meet international emissions standards.

许多现代船舶使用四冲程海洋柴油发动机以满足国际排放标准。

4.The ship's propulsion system is powered by a four-cycle marine diesel engine, which provides efficient fuel consumption.

这艘船的推进系统由四冲程海洋柴油发动机提供动力，具有高效的燃油消耗。

5.The efficiency of the four-cycle marine diesel engine reduces operational costs significantly.

四冲程海洋柴油发动机的高效性显著降低了运营成本。

作文

The advancement of technology in the maritime industry has led to the development of various types of engines, each designed to meet specific operational demands. Among these, the four-cycle marine diesel engine stands out due to its efficiency and reliability. This type of engine operates on the four-stroke cycle principle, which consists of four distinct phases: intake, compression, power, and exhaust. Each phase plays a crucial role in the engine's overall performance, making it a preferred choice for many marine applications.During the intake phase, air is drawn into the cylinder as the piston moves down. This is followed by the compression phase, where the piston moves up, compressing the air to a high pressure. The high temperature resulting from this compression allows for efficient combustion when fuel is injected, creating a powerful explosion that drives the piston down during the power phase. Finally, the exhaust phase expels the burnt gases from the cylinder, preparing it for the next cycle.One of the significant advantages of the four-cycle marine diesel engine is its fuel efficiency. Compared to two-stroke engines, four-stroke engines typically consume less fuel for the same amount of power output. This efficiency not only reduces operational costs but also minimizes environmental impact, making it a more sustainable choice for marine vessels.Moreover, the design of the four-cycle marine diesel engine allows for smoother operation and lower noise levels, which is particularly important in marine environments where noise pollution can affect marine life and human activities. The ability to operate quietly and efficiently makes these engines suitable for a wide range of vessels, from large cargo ships to smaller fishing boats.Maintenance is another critical aspect of the four-cycle marine diesel engine. These engines are generally easier to maintain than their two-stroke counterparts due to their simpler design and fewer moving parts. Regular maintenance ensures longevity and reliability, which are essential for vessels that operate in challenging marine conditions.Furthermore, advancements in technology have led to the integration of electronic control systems in modern four-cycle marine diesel engines. These systems enhance performance by optimizing fuel injection and monitoring engine parameters in real-time. As a result, operators can achieve better fuel economy and reduced emissions, aligning with global efforts to promote greener shipping practices.In conclusion, the four-cycle marine diesel engine represents a significant innovation in marine propulsion technology. Its efficiency, reliability, and lower environmental impact make it an ideal choice for modern vessels. As the maritime industry continues to evolve, the importance of such engines will only grow, paving the way for a more sustainable future at sea.

随着海洋工业技术的进步，各种类型的发动机应运而生，每种发动机都旨在满足特定的操作需求。在这些发动机中，四冲程船用柴油发动机因其高效性和可靠性而脱颖而出。这种类型的发动机基于四冲程循环原理，包含四个不同的阶段：进气、压缩、动力和排气。每个阶段在发动机整体性能中都发挥着至关重要的作用，使其成为许多海洋应用的首选。在进气阶段，空气随着活塞向下移动而被吸入气缸。接下来是压缩阶段，活塞向上移动，将空气压缩到高压。由于这种压缩产生的高温，使得燃料喷入时能够有效燃烧，从而产生强大的爆炸力，推动活塞在动力阶段向下移动。最后，排气阶段将燃烧后的气体从气缸中排出，为下一个循环做好准备。四冲程船用柴油发动机的一个显著优势是其燃油效率。与二冲程发动机相比，四冲程发动机通常在相同功率输出下消耗更少的燃料。这种效率不仅降低了运营成本，还减少了对环境的影响，使其成为海洋船舶更可持续的选择。此外，四冲程船用柴油发动机的设计使其运行更加平稳，噪音水平更低，这在海洋环境中尤为重要，因为噪音污染会影响海洋生物和人类活动。安静且高效的运行能力使这些发动机适合各种船舶，从大型货轮到小型渔船。维护是四冲程船用柴油发动机的另一个关键方面。由于设计较简单且运动部件较少，这些发动机通常比两冲程发动机更易于维护。定期维护确保了发动机的耐用性和可靠性，这对于在恶劣海洋条件下运行的船舶至关重要。此外，技术的进步使现代四冲程船用柴油发动机整合了电子控制系统。这些系统通过优化燃油喷射和实时监控发动机参数来提高性能。因此，操作员可以实现更好的燃油经济性和减少排放，这与全球推动更环保航运实践的努力相一致。总之，四冲程船用柴油发动机代表了船舶推进技术的重要创新。其高效性、可靠性和较低的环境影响使其成为现代船舶的理想选择。随着海洋工业的不断发展，这种发动机的重要性只会日益增强，为海洋的可持续未来铺平道路。