First, though, we have to take a look at an engine's basic functions. An engine works by igniting fuel in two ways: heat and compression. Spark-ignition engines are found in most gasoline cars. In these types of engines, the spark plugs fire to ignite fuel in the combustion chamber, while the fuel and air mixture is also being compressed. COMBUSTION. A gasoline fueled IC engine takes in premixed fuel and air via the induction system, compresses it in each cylinder with a piston and ignites the mixture with a spark plug. Fuel is added during the intake stroke to create a desired air/fuel mixture ready for combustion. Gassers do have a lifespan. A gas RV engine lasts either 20 years or 200,000 miles. With proper maintenance, the engine will last longer, but it may require replacing essential components. Diesel RV engines can flip 500,000 miles and keep on rolling. Diesel Class A motorhomes use the same engines that commercial and industrial machinery use. The Diesel Engine. The diesel internal combustion engine differs from the gasoline powered Otto cycle by using a higher compression of the fuel to ignite the fuel rather than using a spark plug ("compression ignition" rather than "spark ignition"). In the diesel engine, air is compressed adiabatically with a compression ratio typically between
A heavy duty natural gas vehicle generally costs more than a diesel vehicle. According to a study of California LNG trucks, a conventional diesel truck may cost $70,000, but a natural gas truck
Step 1: The Intake Stroke. The intake stroke refers to how air and fuel enter an engine’s combustion chamber. The process behind this first step, however, varies by engine type. In port-fuel-injected (PFI) engines, the piston moves down the cylinder while the intake valve draws an air and fuel mixture into the combustion chamber. 9LX0Em.
