piston swept volume

简明释义

活塞排量

英英释义

例句

1.In a four-stroke engine, the piston swept volume 活塞扫气容积 is crucial for determining the efficiency of the combustion process.

在四冲程发动机中，活塞扫气容积对于确定燃烧过程的效率至关重要。

2.Increasing the piston swept volume 活塞扫气容积 can lead to higher power output from the engine.

增加活塞扫气容积可以提高发动机的功率输出。

3.The engine's performance is largely determined by its piston swept volume 活塞扫气容积, which affects the amount of air-fuel mixture that can be drawn in during each cycle.

发动机的性能在很大程度上取决于其活塞扫气容积，这影响每个周期内可以吸入的空气-燃料混合物的量。

4.To calculate the piston swept volume 活塞扫气容积, you need to know the bore and stroke of the engine.

要计算活塞扫气容积，您需要知道发动机的缸径和行程。

5.The specifications of the car include the piston swept volume 活塞扫气容积 which is essential for understanding its engine capabilities.

汽车的规格包括活塞扫气容积，这对于了解其发动机能力至关重要。

作文

In the realm of mechanical engineering, particularly in the design and functionality of internal combustion engines, the term piston swept volume is crucial for understanding engine performance. The piston swept volume refers to the total volume displaced by the piston as it moves from the bottom dead center (BDC) to the top dead center (TDC) within a cylinder. This measurement is essential because it directly influences the engine's power output and efficiency. To grasp the significance of piston swept volume, one must first comprehend its relationship with other engine parameters such as displacement, compression ratio, and overall engine design.The piston swept volume can be calculated using the formula: V = π/4 × D² × S, where V is the volume, D is the diameter of the cylinder, and S is the stroke length of the piston. This formula illustrates how both the diameter and the stroke length contribute to the volume that the piston sweeps through during its operation. A larger piston swept volume generally indicates a more powerful engine because it allows for more air and fuel mixture to enter the combustion chamber, leading to greater energy production during combustion.Moreover, the piston swept volume plays a vital role in determining the engine's compression ratio, which is the ratio of the maximum to minimum cylinder volume. A higher compression ratio can lead to improved thermal efficiency and better fuel economy, but it also requires higher octane fuel to prevent knocking. Therefore, engineers must carefully balance the piston swept volume with other design factors to optimize engine performance.Additionally, the piston swept volume is not only relevant for traditional gasoline engines but also for diesel engines and alternative fuel vehicles. In diesel engines, for instance, the piston swept volume is critical for achieving the necessary air-fuel mixture required for efficient combustion. Similarly, in electric vehicles, understanding the piston swept volume helps engineers design hybrid systems that incorporate internal combustion engines alongside electric motors.Furthermore, advancements in technology have led to the development of variable valve timing systems and turbocharging, which can enhance the effective piston swept volume. These innovations allow for better control over the intake and exhaust processes, maximizing the engine's efficiency and power output across various operating conditions. As a result, understanding the piston swept volume becomes even more critical in modern automotive engineering.In conclusion, the concept of piston swept volume is fundamental to the study of engine dynamics and performance. It encapsulates the relationship between engine design, efficiency, and power output. Engineers and designers must consider this parameter when developing new engines to ensure they meet the demands of performance, emissions standards, and fuel efficiency. By mastering the principles surrounding piston swept volume, one can gain deeper insights into the workings of internal combustion engines and their evolution in the automotive industry.

在机械工程领域，特别是在内燃机的设计和功能中，术语活塞扫气容积对于理解发动机性能至关重要。活塞扫气容积是指活塞在气缸内从下止点（BDC）移动到上止点（TDC）时所排开的总容积。这个测量值至关重要，因为它直接影响发动机的功率输出和效率。要理解活塞扫气容积的重要性，首先必须了解它与排量、压缩比和整体发动机设计等其他发动机参数之间的关系。活塞扫气容积可以使用公式计算：V = π/4 × D² × S，其中V是容积，D是气缸直径，S是活塞行程长度。这个公式说明了气缸的直径和行程长度如何共同影响活塞在工作过程中扫过的容积。较大的活塞扫气容积通常表明发动机更强大，因为它允许更多的空气和燃料混合物进入燃烧室，从而在燃烧过程中产生更大的能量。此外，活塞扫气容积在确定发动机的压缩比方面也起着至关重要的作用，压缩比是最大气缸容积与最小气缸容积的比率。较高的压缩比可以提高热效率和更好的燃油经济性，但也需要更高辛烷值的燃料以防止爆震。因此，工程师必须仔细平衡活塞扫气容积与其他设计因素，以优化发动机性能。此外，活塞扫气容积不仅对传统汽油发动机相关，而且对柴油发动机和替代燃料车辆也同样重要。例如，在柴油发动机中，活塞扫气容积对于实现高效燃烧所需的空气-燃料混合物至关重要。同样，在电动车中，理解活塞扫气容积有助于工程师设计混合动力系统，将内燃机与电动机结合起来。此外，技术的进步导致可变气门正时系统和涡轮增压的发展，这可以增强有效的活塞扫气容积。这些创新使得更好地控制进气和排气过程成为可能，从而最大化发动机在各种操作条件下的效率和功率输出。因此，在现代汽车工程中，理解活塞扫气容积变得更加重要。总之，活塞扫气容积的概念是研究发动机动态和性能的基础。它概括了发动机设计、效率和功率输出之间的关系。工程师和设计师在开发新发动机时必须考虑这一参数，以确保它们满足性能、排放标准和燃油效率的要求。通过掌握与活塞扫气容积相关的原理，人们可以更深入地了解内燃机的工作原理及其在汽车工业中的演变。