Lycoming IO-540-V4A5 Engine

The Lycoming IO-540-V4A5 engine has set a benchmark in the aviation field with its excellent performance, wide application areas and significant advantages, and has become the trusted power choice of many pilots and aviation operators.

Prat Number

Basic information

• Type: Four-stroke, 6-cylinder, horizontally opposed, air-cooled piston engine.

• Cylinder structure: The cylinder block and cylinder head are cast from high-strength aluminum alloy, which has good heat dissipation and corrosion resistance. The inner wall of the cylinder is precision machined and hardened to reduce friction loss and improve wear resistance. The piston is made of aluminum alloy and is equipped with piston rings between the piston and the cylinder wall to ensure good sealing and lubricity.

• Fuel system: Equipped with an advanced fuel injection system, it can automatically adjust the fuel supply according to the engine load and speed to ensure the best combustion efficiency under different working conditions. At the same time, the fuel system also has a fault self-diagnosis function, which can promptly detect and eliminate fuel system faults.

• Turbocharger: This engine is usually equipped with a turbocharger, which can effectively increase the intake pressure, increase the oxygen supply, and make the fuel burn more fully, thereby improving the engine's power output and efficiency.

• Electronic control system: The full authority digital engine control (FADEC) system is used to monitor and precisely control various parameters of the engine in real time, including ignition timing, fuel injection, and turbocharger operation, which improves the performance, reliability, and safety of the engine.

Performance parameters

• Power output: Under different tuning and application conditions, its power output range is generally between 300 horsepower and 400 horsepower. For example, on some models of aircraft, the engine can generate about 330 horsepower (246 kW) at 2700 rpm and about 360 horsepower (268 kW) at 2800 rpm.

• Speed: The maximum continuous speed is usually around 2700 to 2800 rpm, depending on the specific model and operating conditions of the engine.

• Efficiency: It has high fuel efficiency and can fly about 10 to 13 miles per gallon of fuel in cruising state. The specific fuel consumption rate will vary depending on factors such as the model, weight, and flight conditions of the aircraft.

Application fields

• General aviation: widely used in various types of medium and light general aircraft, such as the Eagle-LE500 light multi-purpose aircraft, which can be used for business flights, aerial photography, aerial tours, flight training and other purposes.

• Aviation sports: due to its reliable performance and convenient maintenance, it is also used in some aviation sports, such as power modification of powered paragliders, delta wings and other aircraft.

Advantages and characteristics

• High reliability: after long-term use and verification, the engine has excellent reliability and durability, and can operate stably under various harsh environmental conditions. Its structure is simple and the number of parts is relatively small, which reduces the probability of failure, maintenance costs and downtime.

• Easy maintenance: The structural design of the engine is convenient for daily maintenance and maintenance, and maintenance personnel can easily inspect, repair and replace various components. At the same time, Lycoming provides a complete maintenance manual and technical training, so that maintenance personnel can perform maintenance work quickly and accurately.

• Long service life: under normal use and maintenance, its service life can reach thousands of hours, which can provide long-term and stable power support for the aircraft.

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