Tuesday, July 31, 2012

Injection vs. Carburetor


A long time ago, that the use of fuel injection systems have replaced carburetors widely, at least in the world of automobiles. But it is not the same when it comes to two-wheeled vehicles. Let us look at what each power system, and discover the realities and myths about bikes injection. To begin to describe injection systems we can say that is a fuel supply system for internal combustion engines. The injection allows better fuel metering, thanks to electronics and various sensors can obtain a more homogeneous mixture depending on the driver's needs, and environmental standards against pollution. Injection systems can be multipoint or single point. This is related to the number of nozzles that have the system, has a unique single point injector for all cylinders, while the multipoint have an injector for each cylinder of the injection motor.Las electronic calculators (called ECU or ECM) also handle ignition of the combustion process, they also have an injection map for all operating conditions and engine speed, allowing consumption and improve performance across all conditions.

The early stages of injection occurred in 1980, the first system used was the indirect injection, which consists in performing the injection of fuel into the intake manifold, in later years came, direct injection, which consists of injecting the fuel into the combustion chamber. The latter system is more suitable for reducing fuel consumption.

Before turning to the carburetors, let lambda probe, which is part of the injection system. The Lambda sensor is a device that is mounted in the exhaust pipe upstream of the catalyst, which receives data from the configuration of the exhaust gases and, depending on your reading, command injection necessary modifications to maintain the relationship in the optimum. Now, let the carburetor, this has a division where gasoline and air are mixed and a portion where gasoline is stored (Cuba). These parties are split, but are connected by the main nozzle. In the intake stroke of the engine, the piston inside the cylinder and lower the pressure inside the cylinder decreases, drawing air from the cleaner, carburetor and intake manifold flow until the cylinder. When air passes through the narrow portion of the carburetor, the speed rises and sucks the gas from the main nozzle. The aspirated gas is blown and scattered by the air flow and is mixed with air. This air-fuel mixture is then sucked into the cylinder. The amount of air is controlled by the throttle valve connected to the accelerator, and determine the amount of air / fuel mixture sucked.

Well, briefly explained what each fuel feed system. Now comes the big question. Which is better? And the truth that for many the question is not simple, but really it is!! The carburetor evolved into what we now know as the injection is a much more modern technology, we get more power, better fuel economy, and also we damage the environment less. The automotive industry was the first to adopt the injection in 90% of its models, and although the bikes we see that even not so popular, this is simply a matter of costs. But beware, all bikes use medium and high cylinder injection carburetor only exists today for this range of small displacement motorcycles where the cost of the injection system would be felt in the final price. The detractors of the injection we will find those who hide behind saying that the injection has a much higher maintenance costs. If something fails, repair is much more expensive. It is true that the carburetor is so simple that anyone is encouraged to get their hands, and therefore do not need to be a specialist or expensive equipment to work, but the question is how much trouble brings the injection system, and the answer is ..

Far less than a carburetor. Like it or not, the fuel injection is a trend, and how much we resist, in a couple of years, bikes will not exist without it. More information at: MotoVsMoto.com.ar

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