What are the basic components of an aviation pressure refueling connector? What is its function?
Publish Time: 2024-07-24
The basic structure of an aviation pressure refueling connector usually consists of several key parts that work together to achieve efficient aviation refueling operations. The following is a detailed explanation of these main parts and their functions:
Basic structural parts
Connector body assembly:
Connector body: As the main part of the entire connector, it provides structural support and accommodates other internal components.
Refueling valve assembly: including refueling valve, guide frame, refueling valve handle and crank, etc., responsible for controlling the flow of fuel. When the valve is open, fuel is allowed to pass; when the valve is closed, fuel flow is blocked.
Docking plate and valve seat: The docking plate and valve seat are usually movably connected to the connector body, used to dock with the aircraft fuel system, and ensure the accuracy and stability of the connection.
Reducer assembly:
Reducer: used to slow down the flow rate of fuel through the connector to reduce pressure fluctuations and shocks, and protect the connector and fuel system.
Pressure self-locking valve: built into the reducer, it automatically closes when the pressure exceeds the set value to prevent overpressure from damaging the system. The pressure self-locking valve may also be fixed with streamlined crosspieces inside to improve flow and reduce resistance.
Aluminum joint:
Usually bolted to the reducer assembly, used to connect external pipes or refueling equipment. Aluminum joints may also include additional components such as explosion-proof pipe joints and filters to improve safety and filtering effects.
Filter:
Installed inside the aluminum joint or in the pipe connected to it, it is used to filter impurities in the fuel to prevent impurities from entering the aircraft fuel tank and affecting fuel quality and engine performance.
Handle:
Installed outside the main assembly of the joint to facilitate the operator to control the opening and closing of the refueling valve. The handle design may include a spindle-shaped handle base to improve the comfort and stability of operation.
Function
Control fuel flow: By opening and closing the refueling valve assembly, the flow of fuel is precisely controlled to ensure the safety and efficiency of the refueling process.
Reduce pressure fluctuations: The reducer assembly reduces pressure fluctuations and shocks in the pipeline by slowing down the fuel flow rate, protecting the joint and fuel system from damage.
Improve safety: The pressure self-locking valve automatically closes when the pressure exceeds the set value to prevent overpressure from damaging the system. At the same time, components such as explosion-proof pipe joints and filters also improve the safety of the refueling process.
Easy to operate: The design of the handle allows the operator to easily control the switch of the refueling valve, improving the convenience and accuracy of operation.
In summary, the various parts of the aviation pressure refueling connector cooperate with each other to achieve the control of fuel flow, the reduction of pressure fluctuations, the improvement of safety and the convenience of operation. These characteristics make the aviation pressure refueling connector widely used and play an important role in the field of aviation refueling.
