Home
About Metex
Quality Assurance
Introduction to
Knitted Wire Mesh
Download
Technical Bulletins
Careers with Metex
Contact Us
Site Map
 
CUSTOM SOLUTIONS IN KNITTED WIRE MESH
           
           
 
 
Crankcase Ventilation
Meeting the Challenge for Better Control
of Crankcase Emissions in Combustion Engines
   
 

Four decades of experience in designing and manufacturing crankcase-emission filtration systems have made Metex the supplier of choice for all types of consumer- and commercial-vehicle applications, both on- and off-highway.

Due to our unique ability to manufacture Breather Elements and Assemblies from a wide range of ferrous and nonferrous metals, engineered plastics, and composites, Metex emission-control solutions can also be found in equipment designed for use in corrosive and high-temperature environments—such as marine engines as well as consumer and industrial generators and compressors.

In addition, Metex Breather Elements can be made from any material that can be formed into wire—allowing immediate changes in key performance criteria for even the most demanding applications.

Metex designed and manufactured Breather Elements and Assemblies provide long-lasting performance in reducing crankcase emissions as well as oil consumption and oil pooling on external engine and vehicle parts—while protecting air-intake products in closed-crankcase ventilation (CCV) systems.

Custom engineered to enhance engine performance and reliability Metex engine-filtration solutions are custom designed for enhanced performance in both open-crankcase and closed-crankcase ventilation systems, as either internal or external devices. Internal devices use baffles (which only remove particles of 5µm or larger) or coalescing filter elements in the cylinder head cover or other locations inside the engine.

External crankcase filtration systems consist of a breather assembly or mechanical device secured directly on the engine or by remote, bracket-mounting. Unlike other systems, Metex Breather Elements and Assemblies are designed to remove both fine and coarse particles, as well as fine oil-mist condensation.

In open-crankcase ventilation systems Metex helps reduce engine oil consumption, the threat of catastrophic engine failure due to oil loss in engines in remote locations, and invalid warranty claims due to deposition of oil on engine and other vehicle parts. They also help eliminate accumulation of oil mist on test-cell equipment.

In closed-crankcase systems, specifying the right Metex Breather Element or Assembly can help reduce warranty service levels due to pooling of lubrication oil in the crankcase pressure control valve, as well as turbocharger intake compressor and intercooler. Metex custom products also reduce the formation of an oil film within the heat exchanger or the aftercooler or intercoolers on certain turbo-charged engines.  

BENEFITS
  • Long service life—four times more durable than competing products
  • Cost-effective—can withstand temperatures between -45°C to 650°C, depending upon material selection
  • High separation efficiencies of 95-99% and low pressure drop
  • Can vary element density and surface area to solve the most difficult separation problems
  • Can accommodate any available engine space
  • Easy to install in existing or new cavities or housings
  • Ability to combine monofilament or multifilament material into one breather element
  • Element can be die formed, layered, or spiral wound
  • Better, more cost-effective solutions for reducing crankcase emissions

Reduced Crankcase Emissions & OEM Costs
Metex has the material-science knowledge, as well as design-engineering and manufacturing expertise, to supply breather elements and assemblies in any size and for any type of engine—with blow-by levels ranging from 0.2-40 cubic feet per minute.

In-house Testing Capabilities and Equipment
Metex uses the very latest test equipment and procedures to optimize the design of each Breather Element and Assembly. Variables such as flow rate, temperatures and pressure drop can all be measured and controlled in our custom-designed laboratory.

From initial inquiry, through prototype development, to low- and high-volume production, you can count on our decades of experience to deliver solutions that solve the most challenging crankcase-emission problems.
 

  Download Technical Bulletin