Applications

On-Road: Heavy Duty, Medium Duty, Light Duty & Passenger Car

Over the past decade the world has seen steady growth in the number of gasoline and diesel-powered vehicles. Diesel remains the dominant source of power for heavy duty trucks and is increasingly being introduced for lighter duty vehicles and passenger cars.

In the United States today, according to the EPA, on-road vehicles are responsible for nearly 60 percent of carbon monoxide (CO) emissions, one-third of the oxides of nitrogen (NOx) emissions and 20 percent of smog-forming volatile organic compounds nationwide. The total vehicle miles people travel in the United States increased 178 percent between 1970 and 2005 and continues to increase at a rate of two to three percent each year. In the United States, there are more than 210 million cars and light-duty trucks on the road.

Road transport is the principal means of transport in the European Union for both passengers and goods. Today, the European Union has almost one vehicle for every two residents, and road freight traffic represents more than two thirds of the total tonnage. European Union action focuses essentially on controlling the multiple costs of road transport. Transport development must comply with safety requirements as well as environmental protection.

On-road vehicles pollute the air through combustion and fuel evaporation and contribute greatly to air pollution worldwide. Fortunately, the harmful components of diesel exhaust: particulate matter (PM), CO, and hydrocarbons (HC) and toxics from gasoline emissions: CO, HC and NOx, are easily reduced with current and readily available technologies which provide immediate emissions reductions and hence immediate health benefits to the local population. Because exposure increases exponentially with proximity to the source, reducing emissions with these retrofit technologies in the vicinity of people provides critical public health benefits and minimizes a person's exposure to these harmful emissions.

The combination of innovation in emission technology along with tougher regulations has resulted in significant reductions of harmful exhaust emissions. Our extensively tested and governmental agency-approved technologies have contributed to this improvement, and continue to offer advanced emissions solutions to both automakers for all on-road applications, as well as retrofit solutions for existing vehicles such as school, shuttle and urban buses; municipal, state and utility fleet vehicles; refuse trucks; and urban delivery vehicles.

These technologies include our catalysts for gasoline engines; Purifilter®, Purifilter® Plus and Combifilter® diesel particulate filters; AZ Purifier™ and AZ Purimuffler® diesel oxidation catalysts; closed crankcase ventilation systems; and exhaust gas recirculation/selective catalytic reduction (EGR/SCR) solutions.

Please click here for more information on our CARB-compliant emission systems.

Please click here for more information on our EPA-compliant emission systems.

Please click here for more information on our TfL-compliant LEZ emission systems.