Air suspension | Fiat Bogie Air suspension system Explain | #airsuspension

Summary

In this video, the creator explains the development of an air spring suspension system used in LB coaches, focusing on its structure and functionality. The system includes both primary and secondary suspension types, with a detailed breakdown of components like the bolster beam, leveling valve, and air spring suspension. The video also highlights safety features like failure indication via FIVA (failure indication for air suspension) and the importance of balancing the air suspension. The creator aims to provide a comprehensive understanding of the system's operation and its development process.

Takeaways

• 😀 The video introduces the LB coach's air spring suspension system, which is currently under development.
• 😀 It highlights the structure and components of the suspension system, including the primary and secondary systems.
• 😀 The primary suspension system works alongside the secondary suspension system, which includes both spring and air suspension types.
• 😀 The air spring suspension system is made up of several components like the bolster beam, base plate, rubber spring pad, and the tire top plate.
• 😀 The top plate of the suspension is placed under the bolster beam, and it transmits the load to the airbag or tire, maintaining air suspension balance.
• 😀 A leveling valve is used to ensure equal air suspension balance on both sides of the system.
• 😀 The system is equipped with a FIVA (Failure Indication Valve) that alerts to any leakage in the air suspension system.
• 😀 The FIVA has four connections: two coming from the suspension system, one from the BP (brake pipe), and one for the indication function.
• 😀 The video explains the pipe arrangement that carries air to the suspension system, with additional components like the CCK dot collector and non-return valve.
• 😀 A visual indicator (green or red) shows the status of the air suspension system; red signals a problem (e.g., leakage), while green indicates no issue.

Q & A

What is the main focus of the video?

The video focuses on explaining the LB coach air spring suspension system, including its structure, components, and functionality, with a special emphasis on the air suspension system.

What types of suspension systems are mentioned in the video?

The video mentions two types of suspension systems: primary suspension and secondary suspension. The secondary suspension includes both spring suspension and air suspension.

What is the role of the bolster beam in the suspension system?

The bolster beam supports the coach structure and is connected to the air suspension system, ensuring the load is properly distributed.

How does the air spring suspension system maintain balance?

The air spring suspension system maintains balance by using an air bag and leveling valve. The leveling valve adjusts the air suspension to keep the coach level and distribute the load evenly.

What is the purpose of the leveling valve in the system?

The leveling valve ensures that the air suspension system maintains an equal balance by adjusting the air pressure in the air bags, keeping the coach level and stable.

What is the function of the FIVA (Failure Indication Valve)?

The FIVA is a safety feature that detects any leakage or issues within the air suspension system. It triggers an indicator to alert the user, turning red when there's a problem and green when everything is functioning correctly.

What are the main components involved in the air suspension system's structure?

The main components of the air suspension system include the top plate, spring pad, base plate, bogey frame, air bag, leveling valve, and the FIVA.

How is the air supplied to the air spring or air bag?

Air is supplied to the air spring or air bag through pipes connected to a branch pipe (BP) and feed pipe (FP). The air is charged and distributed to both sides of the bogie via these connections.

What does the indicator show when there is no problem with the suspension system?

When there is no problem with the suspension system, the indicator shows a green light, signaling that everything is functioning as expected.

What is the significance of the pipes in the air suspension system?

The pipes in the air suspension system are essential for carrying air to the air bags and connecting the various components like the leveling valve, ensuring proper airflow and balance throughout the suspension system.