What Are the Potential Safety Risks of Oil-Injected Screw Compressors, Oil-Injected Sliding Vane Compressors, Oil-Free Scroll Air Compressors, and Oil-Injected Piston Compressors in New Energy Vehicle Braking Systems?
1. Lubricant in oil-injected air compressors is prone to emulsification at low temperatures.
2.Improper operation during maintenance can easily cause oil carryover, allowing a large number of oil molecules to enter the compressed air and create safety hazards in the braking system. These compressors also have a large number of wearing parts, high failure rates, complicated maintenance procedures, and require professional maintenance personnel.
3. If the vehicle is out of operation for more than 1 month, the bearings and rotors of the air compressor main engine are prone to rust and seizure, which creates safety risks for the braking system.
4. High oil content in compressed air has a corrosive effect on the seals of the air transmission pipeline network, which reduces the tightness of the pipeline network. This leads to low and unstable air pressure in the braking system pipeline, creating safety hazards for the braking system.
5. High oil content in compressed air can easily corrode and damage the vehicle's pneumatic valve bodies, door opening and closing pumps, and other components, greatly shortening the service life of pneumatic pumps and valves. This leads to more frequent maintenance and replacement of spare parts, increasing economic and labor costs.
6. In northern winter, high water content in compressed air leads to a large amount of water retained in the air transmission pipeline network, which is easy to freeze and block the air pipes. This causes low and unstable gas pressure in the braking system pipeline, creating braking safety hazards. It also increases the working load of UOP drying filters and leads to premature failure of air after-treatment equipment.
7. In winter, to prevent emulsification of the air compressor lubricant, the vehicle needs to be preheated for 15 to 20 minutes before normal operation every morning; in spring and autumn, preheating for 10 to 12 minutes is required before departure. This means drivers need to clock in earlier, increasing labor costs. To prevent lubricant emulsification caused by low oil temperature during operation, the compressor is forced to run for 3 to 5 minutes through so-called optimization, even though it can reach full pressure and stop in 40 seconds. This wastes operation time and electricity costs: at least 2 kWh of electricity is wasted every day. Converted to battery cost, this equals 3,600 RMB (based on the current price of 1,800 RMB/kWh), or an extra 5 to 8 kilometers of driving range.
Oil-injected sliding vane air compressors and oil-injected piston air compressors used in the braking systems of new energy buses almost universally have lubricant leakage issues. On one hand, oil leakage creates an ignition source that can lead to vehicle fire; on the other hand, if the lubricant is completely depleted, the air compressor will stop working. The interruption of air supply will cause vehicle braking failure, threatening the safety of lives.
Traditional lubricated air compressors only have an IP56 protection rating, which cannot provide effective waterproof and dustproof performance. In rainy and humid environments (or low-temperature environments), moisture in the air will emulsify with the internal lubricant during air compression, leading to air compressor failure. In cold weather in northern China, vehicle startup and preheating often take more than 20 minutes, resulting in increased energy consumption.
TEPKOS Oil-Free Air Compressor: The Optimal Solution for New Energy Vehicle Braking Systems
As a leading EV solution provider for commercial vehicles and professional EV parts OEM & ODM manufacturer, we have developed a full range of electric oil-free air compressors (TY1.8-B, TY1.8-FB, TY3.0-FB, TY4.0-FB, TY5.0-FB) to fully address the safety and operational pain points of new energy commercial vehicle braking systems outlined above.
Our synchronous motor-driven oil-free air compressors eliminate all risks associated with oil-lubricated models: the PTFE self-lubricating piston structure delivers 100% oil-free compressed air output, completely avoiding oil contamination, corrosion of seals and valve bodies, and fire hazards caused by oil leakage. With an IP67 protection rating, our units are fully dustproof and waterproof, preventing lubricant emulsification in rainy, humid, or extremely low-temperature environments, and eliminating the need for long preheating before vehicle startup.
Engineered with a ceramic-coated cylinder and precision-machined eccentric wheel, our compressors provide an 8,000+ hour service life, with no risk of rotor seizure or rust after long-term vehicle shutdown. The primary energy efficiency rating reduces power consumption by up to 15% compared to oil-lubricated alternatives, preserving valuable battery range for new energy vehicles. With a maintenance-free design over the full service life, our oil-free air compressors cut maintenance costs by 60% for fleets and OEMs, while ensuring a stable and safe air supply for vehicle braking systems in all working conditions.