Axial Engine - Automotive Dictionary

An axial engine refers to a type of turbine engine that utilizes an axial-flow compressor.

Design:
Axial-Flow Compressor: The defining feature of an axial engine is its axial-flow compressor, where air flows parallel to the axis of rotation. This compressor consists of multiple stages of rotating and stationary blades that compress the air as it moves through the engine.
Operation:
Air Intake: Air enters the engine and flows axially through the compressor stages, where its pressure is progressively increased.
Combustion: The compressed air then enters the combustion chamber, where it is mixed with fuel and ignited. The high-pressure, high-temperature gases produced expand and drive the turbine.
Exhaust: The turbine extracts energy from the expanding gases to drive the compressor and any other connected components, and the remaining energy is expelled through the exhaust, producing thrust or mechanical power.
Applications:
Jet Engines: Axial engines are commonly used in jet engines, including turbofans, turbojets, and turboprops, which power most modern aircraft.
Gas Turbines: Also used in stationary gas turbines for power generation and other industrial applications, where efficient and high-volume air compression is required.

High Efficiency: Axial engines are highly efficient, especially in applications requiring high thrust or power output, as they can handle large volumes of air with relatively low drag.
Compact Design: Despite their complexity, axial engines can be designed to be compact and lightweight, which is essential in aerospace applications.

Axial engines are a key technology in modern aviation and industrial power generation, offering a combination of efficiency, power, and reliability.