Obviously fuel economy was quite low. It was this low fuel economy which inspired the creation of the engine running on diesel. The fuel economy of a diesel was obviously 20% to 30% better than the original. But what creates this difference? The answer lies in the way both of it are driven. While the gasoline runs on the Otto cycle the diesel runs on the compression engine. What exactly are these two engines all about?
As mentioned previously runs on the Otto cycle. This process is also known as the four stroke engine. Ideally this engine is supposed to be quite thermally efficient and is to produce real low waste material compared to what it consumes. The engine is basically powered by the internal combustion. To run it uses four basic steps, the reason the engine has been called the four stroke engine.
The first stage is where the air and gasoline is taken in by the engine and is known as the intake stage. The next stage or the compression stage is when pressure is applied on this mixture. The ignition phase follows where a spark is lit causing the mixture to ignite. In the nest and last stage the engine exhausts out the exhaust material from the engine.
While the it runs on these similar stages it is the third phase that sets it apart from the gas engine. While the latter needs a spark to be lit to ignite the engine the diesel does not. Instead, it uses the compression technique. The engine instead compresses air to add heat and once the heat is added the engine acquires its power. That is the basic difference between a gas and a diesel engine
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