Engines that drive vehicles or factory machines are examples of what scientists call heat engines. They burn an energy-rich fuel (coal, gasoline, or something else) to release heat energy, which is used to make a gas expand and cool, push a piston, turn a wheel, and drive the machine. Engines come in two basic types: external combustion engines
Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion, gas or vapor explosion or in a thermobaric weapon).
Clearly, diesel engines save more fuel than gasoline engines, thanks to high compression. Also, diesel fuel contains about 12% more energy than gasoline fuel, and diesel further has about 20% more thermal efficiency than gasoline. In practicality, diesel engines are poised to be able to go 25% farther than gasoline engines with the same amount
The combustion in diesel engines does not work with spark like gas engines do. Unlike gas engine diesel engines take only air through the intake valve during the first stroke, during the second stroke the intake valves are closed and air is compressed as the air is highly compressed on the cylinder the temperature of the air rises and almost reaches one thousand three hundred degrees
This 50:1 mix of gas to oil can be used in four-stroke and two-stroke engines. It's intended as a pretreatment for hard-starting and rough-running engines damaged by ethanol. Just drain the fuel
Hydrogen and hydrogen engines have been receiving a lot of attention in business circles, in the media, and in government. With good reason—the need to reduce global greenhouse gas emissions and reach destination zero is greater than ever. And hydrogen fuel is one of the most promising carriers of non-fossil energy.
In a direct injection engine, however, the fuel skips the waiting period it would have to endure inside a standard engine and instead proceeds straight to the combustion chamber. This allows the fuel to burn more evenly and thoroughly. For the driver, that can translate to better mileage and greater power to the wheels.
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how does a diesel engine work vs gas
