Take a breath in. Now, let it out. If you keep doing that for a whole day, you’ll breathe close to 3,000 gallons of air. That’s enough to fill a tanker truck! Now imagine doing that in a world where the air is filled with harsh gases and harmful particulates like soot. Suddenly, taking deep breaths becomes a lot less appealing.
That’s where Corning comes in. You can breathe easier knowing that Corning’s particulate filters and ceramic substrates help make the air cleaner, removing harsh gases and particulate matter from the vehicle exhaust of cars and trucks of all sizes before they become a part of the air around you.
Substrates and filters are key components of the emissions control system, which lives in the engine compartment and underneath trucks and cars, connecting the engine to the exhaust pipe. When an engine burns fuel, diesel, or gasoline, its exhaust carries harmful byproducts like hydrocarbons, nitrogen oxides, carbon monoxide, and particulates. As exhaust moves through the system, it passes through Corning’s substrates and filters -- this is where the magic happens.
Corning makes substrates and filters for gasoline and diesel vehicles of all sizes, from passenger cars to heavy-duty trucks, construction, and agricultural equipment. Diesel-powered vehicles use substrates to remediate gaseous pollutants and filters to remove particulate pollutants. Current gasoline-powered vehicles only use substrates to remediate gaseous pollutants, though future regulations will require particulate filters for gasoline exhaust, too.
Filters and substrates are created from high-temperature, low-expansion materials, which can withstand scorching temperatures and rapid temperature changes. They are made using an extrusion process to create thousands of parallel channels with porous walls, which eventually anchor catalysts. The extruded bodies are fired at high temperatures and then cut to a finished size.
With filters and substrates, one size does not fit all. Corning works with engine and vehicle manufacturers to understand their emissions control system needs and constraints, using different materials, sizes, and shapes to fit each system.