In the field of aviation, hydraulics and their related systems play a vital role in the functionality of aircraft. In fact, aviation hydraulic systems are responsible for helping planes take off, fly, and land. While there are two different systems that help control these functions, those of which are pneumatic or hydraulic, hydraulic systems are more popular because they are increasingly reliable.
Specifically, aviation hydraulic systems are utilized to help control and manage various aircraft equipment like brakes, flaps, thrust reversers, flight controls, and landing gear. Hydraulic systems offer the perfect amount of pressure to operate these systems, making them ideal for a wide range of aircraft models. The reason they work better is because they take advantage of non-compressible liquids, meaning that they cause no delay in movement, unlike pneumatic systems.
Basic Components of Hydraulic Systems
Hydraulic systems are made up of six key components: a pump, reservoir, actuating cylinder, pressure relief valve, flow control devices, and heat exchanger.
Types of Hydraulic Fluid
There are three main types of fluids being used in hydraulic systems today.
Advantages of Aviation Hydraulics
Hydraulics offer aircraft a myriad of advantages, some of which we will outline. To begin, they are cost-effective to install and maintain. Moreover, they are energy efficient due to the fact they can run continuously at a constant speed to produce the necessary power to operate. With this in mind, they are very dependable and reliable. As they have very little moving parts, they are more resistant to potential failures. Furthermore, they provide quick and efficient response to control inputs which is critical to having a safe flight. Lastly, since they utilize non-compressible fluids, they can withstand the variable pressures experienced during flight.
How Hydraulics and Landing Gear Work
Hydraulic systems play a critical role in an aircraft’s ability to utilize landing gear. With the help of the pressurized hydraulic fluid, the landing gear linkages can be actuated, so that they can be raised and lowered.
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