Performance Diesel Inc, or PDI, has designed a Compressed Natural Gas (CNG) System, which runs on a 70% natural gas and 30% clean diesel mixture that increases performance while decreasing emission particulates. The new PDI
compressed natural gas system enables light-, medium-, and heavy-duty diesel engines to operate primarily on natural gas.
The diesel engine is basically unchanged and retains its high performance and high efficiency diesel cycle. By efficiently burning compressed natural gas, customers benefit from lower fuel costs and lower emissions. If the CNG supply runs out, your truck will change seamlessly to operate on 100% diesel fuel, giving a complete diesel operation backup.
PDI uses a fumigation method, so natural gas is drawn directly into the intake system. The CNG is combined with air and directed into the combustion chamber. This extra high octane fuel allows for a complete burn, increasing both power and fuel mileage.
Each natural gas system is predesigned for truck applications to operate during a predetermined boost pressure and can also be controlled by a toggle switch mounted in the cab to turn the system on and off during periods when the user wishes only to operate on diesel fuel.