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Powiadomienie o nowych ogłoszeniach for Engine and equipment

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What is a car engine?

The engine is called a device which changes the energy of a factor at work. Depending on the energy used is divided into the engines air, water, heat and electricity. The main parts of the piston engine are: cylinders, pistons and crankshafts.

Piston send tightly free passage of the cylinder and moves in the movement posuwistozwrotnym. It is connected via a piston pin and connecting rod with a crank pin of the crankshaft. In this way, movement of the piston causes posuwistozwrotne rotation of the crankshaft. The piston closes the inside of the cylinder from below and from above the cylinder head is closed, in which there are normally closed valves, channels, intake and exhaust.

Depending on the engine design, the piston during one working cycle has to perform two or four strokes, so that the motors are divided into two-stroke and four-stroke.

Higher compression pressure allows greater amount of useful work due to combustion of a specific quantity of fuel-air mixture. During the compression temperature of the gas increases, thereby compressing the fuel-air mixture in the cylinder of the internal combustion engine can easily arise samozapłonom friendly mixture. The engines operating on gasoline or similar fuel need to limit temperatures in the cylinders at the end of the compression stroke by the selection of appropriate low compression ratio. Therefore, the petrol engine or a fuel with similar tendencies to self-igniting engine called niskoprężnymi.

In addition to the low-pressure engines are built engines with a high compression ratio (diesel engine) in which the fuel is diesel. Such motors suck and compress the clean air and the fuel is supplied at the end of the compression stroke by a special injection device.