You can find and buy High Pressure Fuel Pump / Fuel Injection Pump of high High Pressure Fuel Pump / Fuel Injection Pump – HYUNDAI H Box D (57 . The last carburetor-equipped car came off the assembly line in Since then, fuel injectors have been the primary means of getting gasoline into the engine. For the engine to run smoothly and efficiently it needs to be provided with the right quantity of fuel/air mixture according to its wide range of demands.

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How Fuel Injection Systems Work

The TCM system is even more simple. With an assist from modern engine management computers, the fuel gets burned right where it’s needed, when it’s needed [source: Fuel injection also dispenses with the need for a separate mechanical fuekwhich on carburetor-equipped vehicles must be adjusted as the engine warms up to normal temperature.

The process of determining the necessary amount of fuel, and its delivery into the engine, are known as fuel metering. Many of the carburetor’s supporting components – such as the air cleaner, intake manifold, and fuel line routing – could be reused.

This activates an extra injector mounted in the manifold, causing it to squirt in extra fuel to enrich the mixture. They are often started on gasoline and then switched to diesel or kerosene.

Split-single I2 V2 F2.

The solenoid lifts the needle valve from the valve seat, and fuel under pressure is sent in the engine cylinder. When signaled by the engine control unit the fuel injector opens and sprays the pressurised fuel into the engine.

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Scania fordonshistoria Scania: All this happens in a fiel of a second, the control unit responding instantly to changes in accelerator position, temperature and air pressure. In the s, the Isuzu Piazza and the Mitsubishi Starion added fuel injection as standard equipment, developed separately with both companies history of diesel powered engines.


These basic premises make a tremendous difference in an engine’s overall efficiency.

Direct Injection Basics | HowStuffWorks

The intake is only slightly wet, and typical fuel inhection runs between psi. However, they were a favorite in the aforementioned competition trials in which essentially wide-open throttle operation was prevalent. From the accumulatorthe fuel passes through a paper element filter and then feeds into the fuel-metering control unit, also known as the fuel distributor.

See Air—fuel ratioStoichiometryand Combustion. The system pumps more fuel than is needed for injection – a loop circuit returns the excess to the fuel tank via a fuep regulator which keeps the pressure in the pipes constant. NY State Journal of Medicine. The valve only opens when the fuel is squirted in. L-Jetronic was widely adopted on European cars of that period, and a few Japanese models vuel short time later. The first automotive direct injection system used to run on gasoline was developed by Boschand was introduced by Goliath for their Goliath GP automobile, and Gutbrod in The fuel then squirts out into the inlet port in the cylinder head.

When the solenoid is not activated, the spring forces the needle valve into the nozzle passage and prevents the injection of fuel into the fusl. Modern gasoline engines also use direct injection, which is referred to as gasoline direct injection.

To comply with the new regulations, automobile manufacturers often made extensive fufl complex modifications to the engine carburetor s.

The Mercedes-Benz W Formula 1 racing car engine used Bosch direct injection derived from wartime aircraft engines. The amount of fuel sprayed is increased or injectio by a mechanical or electrical control unit – in other words, it is just like turning a tap on and off. It is only with the advent of multi-point fuel injection certain engine configurations such as inline five cylinder gasoline engines have become more feasible for mass production, as traditional carburetor arrangement with single or twin carburetors could not provide even fuel distribution between cylinders, unless a more complicated individual carburetor per cylinder is used.


In fact, most aircraft that use the TCM fuel injection system feature a fuel flow gauge that is actually a pressure gauge calibrated in gallons per hour or pounds per hour of fuel. Most of the 35 vehicles originally so equipped were field-retrofitted with 4-barrel carburetors.

Diesel fuel injector for Citroen Saxo 1.5 D, 57 hp, 5 doors, 1999

Instead of hanging out in the air intake manifold, fuel is squirted directly into the combustion chamber. The system was subsequently adopted very successfully in Formula One racing, securing championships by CooperBRMLotusBrabhamMatraand Tyrrell in the years through All modeled in 3D We’ve created the most detailed 3D model ever produced so we can show you everything working.

Read more essential guides Servicing a mechanical fuel pump Do not clamp a pump in a vi Please injectin improve this article by adding citations to reliable sources.

To avoid fuel starvation when subject to lateral G-forcesvehicles are often provided with an anti-surge vessel, usually integrated in the fuel tankbut sometimes as a separate, small anti-surge tank.

This was a “port” injection where the injectors are located in the intake manifold, very near the intake valve.

As with continuous injection, timed injection can also be controlled either mechanically or electronically. During the s, other mechanical injection systems such as Hilborn were occasionally used on modified American V8 engines in various racing applications such as drag racingoval racingand road racing. Modern digital electronic fuel injection systems optimize these competing objectives more effectively and consistently than earlier fuel delivery systems such as carburetors.

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The relative proportions of fudl and fuel vary according to the type of fuel used and the performance requirements i. A special pump sends the fuel under pressure from the fuel tank to the engine bay where, still under pressure, it is distributed individually to each cylinder. Modern systems use a mass airflow sensor to send this information to the engine control unit.