ENGINE MECHANICS

PART 1:ENGINE MECHANICS

WHAT IS AN ENGINE?

Generally, we call a motor any device that provides work or mechanical energy, from natural energy such as heat or wind, or electrical energy. There are many types of engine depending on the mode of operation. .
we can define the gasoline engine, as a kind of combution device in other words, this engine transforms the heat released by the combustion of gasoline into a mechanical force to drive the vehicle.

how thermic energy is transformed into mechanical energy?

for example, the lid of a kettle begins to move when the water is heated. the heat gained from the gas or electrical energy boils the water as well, the water vapor pushes kettle blanket. a very important thing not to segregate, the driving force is not the result of the thermal energy but it is thanks to the air haud or the steam. It is a fluid that is necessary to transform the energy, in the case of an automobile engine the fluid is the air + fuel mixture that will be burned and repressed.

on mardi 13 novembre 2018

thermal engine

thermal engine

Definition

The engine indicates the heart of a standard automobile, that is powered by gasoline or diesel. This term has been used most often since the electric car, to mark the difference between the two.

It is called a heat engine for a non-electric car because it produces its energy by burning at very high temperatures (combustion or explosion phase) the fuel it has. This is the mode of operation of most transport vehicles. The flue gases are then released via the exhaust outlet.

Current state

Most cars on the market today operate with a combustion engine. Some of them, like the Toyota Prius, also house a power unit. Finally, cars using 100% of this energy are still rare. In France, the most common thermal blocks are the HDi and dCi diesels.

Evolution
The construction of the first heat engine dates back to the 19th century, a few years before the launch of the first cars during the industrial revolution. Since then, a lot of evolutions and alternatives have appeared: two- or four-stroke engines, with or without valves, with three, four, six, eight or twelve cylinders ... Today, it is often pointed as the first cause of pollution in urban areas, where the system of restricted traffic Anecdote Because it engages a fast and powerful combustion of chemical elements during its operation, the heat engine is naturally polluting: it emits a noise more or less strong and rejects various carbon particles in the air. In France, its level of toxicity is determined by calculating its CO2 emission rate. Related Info Bioethanol is the fuel most used on gasoline engines.

on dimanche 11 novembre 2018