constant speed propeller

简明释义

定速推进器

英英释义

例句

1.During the test flight, the constant speed propeller performed flawlessly, enhancing the aircraft's climb rate.

在测试飞行中，恒速螺旋桨表现出色，提高了飞机的爬升率。

2.One of the advantages of a constant speed propeller is its ability to optimize thrust during takeoff.

恒速螺旋桨的一个优点是能够在起飞时优化推力。

3.The aircraft is equipped with a constant speed propeller, which allows for optimal performance at various altitudes.

这架飞机配备了一个恒速螺旋桨，可以在不同高度下实现最佳性能。

4.The constant speed propeller adjusts its pitch automatically to maintain engine RPM.

恒速螺旋桨会自动调整其桨距以维持发动机转速。

5.Pilots prefer planes with a constant speed propeller for better fuel efficiency during long flights.

飞行员更喜欢配备恒速螺旋桨的飞机，因为在长途飞行中能更好地节省燃料。

作文

In the world of aviation and marine engineering, the efficiency and performance of propulsion systems are crucial for achieving optimal speed and fuel economy. One of the significant advancements in propeller technology is the development of the constant speed propeller, which plays a vital role in enhancing the operational capabilities of aircraft and boats. A constant speed propeller (恒速螺旋桨) is designed to maintain a steady rotational speed regardless of the varying load conditions encountered during flight or navigation. This ability to adjust the blade pitch allows the propeller to optimize its performance across different phases of operation, such as takeoff, cruising, and landing for aircraft or low-speed maneuvering and high-speed travel for boats.The fundamental principle behind a constant speed propeller is its ability to automatically change the angle of the blades relative to the oncoming airflow. When an aircraft climbs or descends, or when a boat changes speed, the load on the engine varies. In traditional fixed-pitch propellers, this variation can lead to inefficiencies, as the propeller cannot adapt to changing conditions. However, with a constant speed propeller (恒速螺旋桨), the pitch can be adjusted automatically through a governor system that senses the engine speed and adjusts the blade angle accordingly. This mechanism ensures that the engine operates within its optimal RPM range, leading to improved fuel efficiency and reduced wear and tear.One of the key advantages of using a constant speed propeller is the enhanced performance it provides. For instance, during takeoff, a pilot can set the propeller to a low pitch to maximize thrust, allowing for a shorter takeoff distance. Once in the air and at cruising altitude, the pilot can then adjust the propeller to a higher pitch, enabling the aircraft to maintain speed with less engine power. This not only saves fuel but also reduces noise and emissions, making flights more environmentally friendly.Furthermore, the use of a constant speed propeller (恒速螺旋桨) is not limited to aircraft; it is also prevalent in marine applications. Boats equipped with this type of propeller can achieve better handling and efficiency. For example, during docking or slow-speed maneuvers, the propeller can be set to a lower pitch, providing greater control without over-revving the engine. Conversely, when the boat needs to accelerate quickly, the pitch can be adjusted to deliver maximum power.In conclusion, the constant speed propeller (恒速螺旋桨) represents a significant leap forward in propulsion technology. By maintaining a consistent rotational speed and adjusting the blade pitch according to the operational demands, it enhances the efficiency, performance, and environmental sustainability of both aircraft and marine vessels. As technology continues to evolve, we can expect further innovations in this field, leading to even more efficient and powerful propulsion systems that will shape the future of transportation.

在航空和海洋工程的世界中，推进系统的效率和性能对于实现最佳速度和燃油经济性至关重要。螺旋桨技术的一个重大进展是恒速螺旋桨的开发，它在提升飞机和船只的操作能力方面发挥着重要作用。恒速螺旋桨（constant speed propeller）旨在保持稳定的转速，无论是在飞行或航行过程中遇到的负载条件变化。这种调节叶片角度的能力使得螺旋桨能够在不同的操作阶段优化其性能，例如飞机的起飞、巡航和着陆，或者船只的低速操控和高速行驶。恒速螺旋桨的基本原理在于它能够自动改变叶片相对于来流空气的角度。当飞机爬升或下降，或者船只改变速度时，发动机上的负载会发生变化。在传统的固定螺旋桨中，这种变化可能导致效率低下，因为螺旋桨无法适应变化的条件。然而，通过恒速螺旋桨（constant speed propeller），叶片的角度可以通过感应发动机转速并相应调整叶片角度的调速器系统自动调整。这种机制确保发动机在其最佳转速范围内运行，从而提高燃油效率并减少磨损。使用恒速螺旋桨的一个关键优势是它提供的增强性能。例如，在起飞过程中，飞行员可以将螺旋桨设置为低角度以最大化推力，从而缩短起飞距离。一旦进入空中并达到巡航高度，飞行员就可以将螺旋桨调整为较高的角度，以便以更少的发动机功率维持速度。这不仅节省了燃料，还减少了噪音和排放，使飞行更加环保。此外，恒速螺旋桨（constant speed propeller）的使用不仅限于飞机；它在海洋应用中也很普遍。配备这种类型螺旋桨的船只可以实现更好的操控和效率。例如，在停靠或低速操纵期间，螺旋桨可以设置为较低的角度，提供更大的控制而不至于使发动机过速。相反，当船只需要快速加速时，可以调整角度以提供最大功率。总之，恒速螺旋桨（constant speed propeller）代表了推进技术的重大飞跃。通过保持一致的转速并根据操作需求调整叶片角度，它提高了飞机和海洋船只的效率、性能和环境可持续性。随着技术的不断发展，我们可以期待这一领域的进一步创新，导致更高效、更强大的推进系统，这将塑造未来的交通运输。