What are the primary benefits of a fuel injection engine over a carbureted engine?
EFI-equipped engines provide higher power and torque than a carbureted version of the same engine. They optimize air/fuel ratios and ignition timing while compensating for other factors to maintain continuous optimum performance.
When did cars switch from being carbureted to injected?
Most car manufacturers stopped using carburetors in the late 1980’s because newer technology was coming out, such as the fuel injector, that proved to be more efficient. There were only a few cars that continued to have carburetors, such as the Subaru Justy, until about the early 1990’s.
When did cars become fuel injected?
In passenger car petrol engines, fuel injection was introduced in the early 1950s, and gradually gained prevalence until it had largely replaced carburetors by the early 1990s.
What is the purpose of the fuel injection system?
Abstract: The purpose of the fuel injection system is to deliver fuel into the engine cylinders, while precisely controlling the injection timing, fuel atomization, and other parameters. The main types of injection systems include pump-line-nozzle, unit injector, and common rail.
What is the working principle of carburetor?
The carburetor works on Bernoulli’s principle: the faster air moves, the lower its static pressure, and higher the dynamic pressure is. The throttle (accelerator) linkage does not directly control the flow of liquid fuel.
What is the difference between carbureted and fuel injected engines?
In carbureted engines, the fuel/ air mixture meets in the carburetor. The mixture then travels to each cylinder through the air intake. In the fuel injected engine, the fuel and air do not mix until they reach the cylinders. Since fuel injection systems shoot fuel directly into the cylinders, they are easier to flood (too much fuel) when starting.
Why do diesel engines have fuel injection?
Fuel injection was always on diesel engines that used a fuel that evaporates only at the high temperature reached by the air compressed in the cylinder. Aircraft engines before the First World War used carburetors, primarily because they were lighter and simpler than fuel injection systems.
What is the history of fuel injection?
Past History of Fuel Injection. This direct fuel injection system was invented by Jonas Hesselman who was a Swedish engineer, in early 1925. The invention came timely and was deployed by various governments especially during the World War II.
How does fuel injection work in airplanes?
By 1954, The CAA required fuel injection on piston engines used by the airlines. For the ideal gasoline direct injection engine, fuel injected directly into the cylinder as a very well atomized spray vaporizes completely by absorbing heat only from the in-cylinder air.