Comprehensive Guide to Oil Breathers in Aviation: Types, Applications, and Key Features

Overview

Oil breathers are essential components in the aviation industry, particularly in aircraft engines. They play a crucial role in maintaining engine efficiency and longevity by preventing the buildup of pressure and contamination within the engine oil system. In this blog, we will delve into the specifics of oil breathers, their types, applications, key features, and their significance in aviation.

What is an Oil Breather?

An oil breather is a device designed to manage the pressure within the engine oil system. It allows the engine to "breathe," meaning it can release pressure and vapors from the crankcase without letting contaminants enter the system. This is vital for maintaining optimal engine performance and preventing oil leaks and seal failures.

Types of Oil Breathers

1. Open System Breathers

These breathers allow the crankcase vapors to escape directly into the atmosphere. While simple in design, they are less efficient at controlling emissions and can contribute to environmental pollution.

2. Closed System Breathers

Closed system breathers capture the crankcase vapors and redirect them back into the engine's intake system. This type is more environmentally friendly as it reduces the release of harmful emissions into the atmosphere. It also helps in improving engine performance by reusing the vaporized oil.

3. Filtered Breathers

Filtered breathers include a filtration element that traps contaminants before they can enter the crankcase. This type is highly effective in maintaining oil cleanliness and engine longevity.

Applications of Oil Breathers

Oil breathers are used in various aviation applications, including:

• Aircraft Engines: They help maintain proper oil pressure and prevent oil contamination, ensuring the engine runs smoothly.
• Auxiliary Power Units (APUs): Oil breathers are critical in maintaining the efficiency and longevity of Auxiliary Power Units (APUs).
• Hydraulic Systems: They are used to prevent the ingress of contaminants in hydraulic systems, ensuring their reliability and performance.

Key Features of Oil Breathers

1. Pressure Regulation

Oil breathers are designed to regulate the pressure within the engine oil system, preventing excessive pressure buildup that can lead to oil leaks and component failures.

2. Contaminant Filtration

Many oil breathers include filtration elements that trap dust, dirt, and other contaminants, ensuring only clean air enters the oil system.

3. Durability

Oil breathers are constructed from high-quality materials to withstand the harsh conditions within an aircraft engine, including high temperatures and pressures.

4. Environmental Compliance

Closed system and filtered breathers help in reducing harmful emissions, aiding in environmental compliance.

Material Used in Oil Breathers

Oil breathers are typically made from robust materials such as:

• Aluminum: Lightweight and corrosion-resistant, commonly used in aviation components.
• Stainless Steel: Offers excellent durability and resistance to corrosion and high temperatures.
• Synthetic Materials: Advanced plastics and composites are used for their lightweight and strong properties.

About ASAP AM Spares

ASAP AM Spares is a leading supplier of aviation parts and components, including oil breathers. We pride ourselves on providing high-quality, reliable parts that meet the stringent demands of the aviation industry. Our extensive inventory and commitment to customer satisfaction make us the go-to source for all your aviation part needs. Visit our website to explore our range of products and request a quote today. Trust ASAP AM Spares for all your aviation spare parts requirements.