Petrol engine

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2020-01-20 06:20:07

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Petrol engines – this is a type of internal combustion engine in which compressed fuel is ignited by a spark of electrical origin. Power to them is controlled and regulated by adjustment of air flow.

The Petrol engine compared to diesel has a greater frequency and volume (liter) capacity, and vibration and noise – on the contrary, below. The fuel mixture is regulated mainly quantitatively why small and medium power (normal operation for a passenger car) effective compression is low. Therefore, there is a lack of combustion efficiency and the following extensions – hence a significant fuel consumption.

It Turns out that at rated power the efficiency of the engine is lower than the same figure for diesel by 20%. In partial modes, this difference reaches 40% and even more. This fact was repeatedly confirmed by comparative and performance tests and tests of vehicles with both types of engines of equal power.

If to speak about degree of toxicity of emitted exhaust gases, it may be noted that due to the improvement of petrol engines in the last decade, this indicator was much better. This had an impact piston driven by the processor a short, direct injection with injectors. At the same time, in the opinion of many reputable experts of the leading automotive companies in modern conditions of high demands for measures to protect the ecology and the environment diesel engines are still inferior to diesel engines – the most promising and meet the described requirements engines. However, the work to improve and maintain sustainability first do not stop.

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If the car has a petrol engine, then it is normal going on 4 cycles:

  • Intake. The piston of one cylinder moves down, and the engine is like a pump, through the open valve "sucks" of gasoline and air.
  • Compression. Both valve – the exhaust and intake – closed. Now the piston goes up, compressing the mixture of air and fuel. At the end of this stroke the spark plug generates a spark which ignites the compressed mixture is already.
  • Stroke. Still closed inlet valve and a release valve, the fuel is combusted. The product of combustion is growing rapidly in volume, which pushes the piston down. The piston, in turn, rotates the crankshaft via the connecting rod.
  • Exhaust. The piston rises again. The exhaust valve opens and the exhaust gases out into the exhaust tract, and then – in the atmosphere.

There are some features of operation and the device of the petrol engine. Problems which may need repair of petrol engines, is a low quality fuel, untimely or poor maintenance, high mileage. For repair it is necessary to address in specialized care centers staffed by experienced masters in accordance with all manufacturer's requirements and routings that reglamentary all maintenance operations for each machine or node.

Summing up, you need to specify the benefits that is characterized by a petrol engine. First of all it is – more power for the same volume. This is due to the high energy output of fuel – gasoline or ethanol. In addition, the gasoline engine itself has a simple design and its price is lower than the price of diesel. Well, of course it's quieter works, especially start to appreciate the motorists who moved with a gasoline car with diesel because they can not get used to loud running motor.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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