Automotive

When it comes to motors and pumps, pressure equalization is necessary to minimize condensation, and high airflow venting is key to manage rapid temperature and pressure changes.

With the ongoing transition to electronic pumps, the need for increased protection against all kinds of auto fluids, water and other contaminants is growing.

Venting protects sensitive electronics from pressure differentials to ensure reliable performance in harsh environments. Donaldson provides a complete range of venting solutions for:

• Door control unit (DCU)
• Powertrain control module (PCM)
• Speed control unit (SCU)
• Transmission control unit (TCU)
• Brake control module (BCM; ABS or ESC)
• Electrical steering units

Our unique membrane technology protects against clogging of pores with diesel exhaust fluid crystals. Our technology combines high airflow properties with ultra high barrier for water (WEP), oil (oil repellency rating) and other liquid or solid contaminants. Donaldson venting solutions are available for:

• Cap
• Valve
• Tank

Donaldson automotive venting solutions cover all types of electrical and hybrid vehicle batteries. Our vents function to improve battery life and reliability through:

• Continuous pressure equalization
• Adequate ventilation
• Emergency degassing

• Air quality
• Humidity
• Pressure
• Radar
• Lidar
• TPMS
• Positioning

The powertrain is the basic foundation of a vehicle. Donaldson powertrain vents provide lasting protection for a car's powertrain, preventing contamination of the lube system, and keeping lubricants from leaking out. Our venting applications include:

• Axles 
• Transmissions
• Power transfer unit