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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A fuel injection system Fuel pump Fuel filter Fuel accumulator Fuel distributor Inlet tract Inlet manifold Injectors Injecttion injector Pip from petrol tank Return pipe to tank A fuel injection system Petrol-engined cars use indirect fuel injection. Finally, the homogeneity of the fuel mixture allows for leaner air—fuel ratios, which together with more precise ignition timing can improve fuel efficiency.

Bosch superseded the D-Jetronic system with the K-Jetronic and L-Jetronic systems forthough some cars such as the Volvo continued using D-Jetronic for the following several years. In other projects Wikimedia Commons. The Ultimate 20 hour car mechanics video course Learn everything about modern cars from our new video series. The TCM system is even more simple. From there it passes into fyel fuel distributor, which sends a burst of fuel to each injector, from where it is fired into the inlet port.

The first automotive direct injection system fiel to run on gasoline was developed by Boschand was introduced by Goliath for their Goliath GP automobile, and Gutbrod in As the piston ascends once more, it squeezes compresses the fuel-air mix until it is nearly nine times as dense as it was to begin with.

This is the next step in evolution from multi-point fuel injection, and offers another magnitude of emission control by eliminating the “wet” portion of the induction system along the inlet tract. The injectors are one of two types, depending on the injection system. The New York Times. NY State Journal of Medicine. Because of the presence of the gas core, the discharge coefficient is generally low.


Journal of the American Medical Association. This computer is fed with information from sensors mounted on the engine.

How a fuel injection system works

Fuel is transported from the fuel tank via fuel lines and pressurised using fuel pump s. 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.

The injector valves are held closed by springs, and inejction by solenoids electromagnets when signalled to do so by the control unit. Aircraft Engine Historical Society. A throttle position injeftion TPS provides this information. Before we look inside the direct injection engine, let’s view a quick second in the life of a standard gasoline engine for a more feul look at the gasoline engine, check out How Car Engines Work.

How car oil is refined The fuel used in a modern c Petrol engines can use gasoline direct injectionwhere the fuel is directly delivered into the combustion chamberor indirect injection where the fuel is mixed with air before the intake stroke. Fuel injection is the introduction of fuel in an internal combustion enginemost commonly automotive enginesby the means of an injector. Once the engine has warmed up to a certain temperature, a thermoswitch automatically cuts off the cold-start injector.

Air filter Blowoff valve Boost controller Butterfly valve Centrifugal-type supercharger Cold air intake Dump valve Electronic throttle control Forced induction Inlet manifold Intake Intercooler Jnjection vacuum Naturally aspirated engine Ram-air intake Scroll-type supercharger Short ram air intake Supercharger Throttle Throttle body Turbocharger Twin-turbo Variable-geometry turbocharger Variable-length intake manifold Warm air intake. InLucas developed its injection system, which was first used for Jaguar racing cars at Le Mans.


Early injection systems used mechanical methods to meter injectiln, while nearly all modern systems use electronic metering. This mechanical system f57 used by some MaseratiAston Martinand Triumph models between and The fuel is sprayed with the help of a nozzle that is opened and closed with a needle valve, operated with a solenoid. With an assist from modern engine management computers, the fuel gets burned right where it’s needed, when it’s needed [source: Data representing the amount of power output desired by the driver sometimes known as “engine load” is ijnection used by the engine control unit in calculating the amount of fuel required.

Views Read View source View history. 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.

Direct Injection Basics | HowStuffWorks

The intake is only slightly wet, and typical fuel pressure runs between psi. Single-point injection was used extensively on American-made passenger cars and light trucks duringand in some European cars in the early and mids. The invention of mechanical injection for gasoline-fueled aviation engines was by the French inventor of the V8 engine configuration, Leon Levavasseur in While a simple carburetor system is cheaper to manufacture than a fuel injection system, the more complex carburetor systems installed on many engines in the s were much more costly than the earlier simple carburetors.

It needs fuel, air oxygen, to be precise and spark in order to operate.