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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Journal of the American Medical Association.

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 Manifold 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.

A fuel injection system Fuel pump Fuel filter Fuel accumulator Fuel distributor Inlet tract Inlet manifold Injectors Cold-start injector Pip from petrol tank Return pipe to tank A fuel injection system Petrol-engined cars use indirect fuel injection. Following this racetrack success, the Mercedes-Benz SLthe first production sports car to use fuel injection, used direct injection.

Archived from the d75 PDF on The limited production Chevrolet Vuel Vega was introduced in March using a Bendix EFI system with pulse-time manifold injection, four injector valves, an electronic control unit ECUfive independent sensors, and two fuel pumps. It works, but from an engineering standpoint, it leaves much to be desired, and it’s pretty wasteful.

Often a fuel rail is used to divide the fuel supply into the required number of cylinders. Inone of the first Japanese designed cars to use mechanical fuel injection was the Daihatsu Compagno.

This system used a normal gasoline fuel pump, to provide fuel to a mechanically driven injection pump, which had separate injectiob per injector to deliver a very high injection pressure directly into the combustion chamber.

With direct injection engines, fuel is squirted directly into the combustion chamber instead of hanging out in the air intake manifold. Fue, direct-injection systems incorporate piezoelectronic fuel injectors. Retrieved from ” https: The Hesselman engine was a low compression design constructed to run on heavy fuel oils.

The earliest systems were mechanically controlled.

How Fuel Injection Systems Work | HowStuffWorks

Modern diesels only change the amount of fuel injected to vary output; there is no throttle. Fuel injection systems are also able to operate normally regardless of orientation, whereas carburetors with floats are not able to operate upside down or in microgravity, such as encountered on airplanes. 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.

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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 complete look at the gasoline engine, check out How Car Engines Work. A fuel pump sends the petrol to the engine bay, and it is then injected into the inlet manifold by an injector. From Wikipedia, the free encyclopedia.

Mechanical systems have now been largely superseded by electronic fuel injection known as EFi for short. Auxiliary power unit Coffman starter Hydraulic system Ice protection system Recoil start.

This ensures that the fuel is well mixed with the air before it enters the chamber. By virtue of better dispersion and homogeneity of the directly injected fuel, the cylinder and piston are cooled, thereby permitting higher compression ratios and earlier ignition timingwith resultant enhanced power output.

This fuel is then sent through tubing to the injectors, which inject it into the combustion chamber. Throughout the early history of diesels, they were always fed by a mechanical pump with a small separate chamber for each cylinder, feeding separate fuel lines and individual injectors. Single-point injection was used extensively on American-made passenger cars and light trucks duringand in some European cars in the early and mids.

This is thanks to the increasing reliability and decreasing costs of electronic control systems. The duration that the injector is open called the pulse width is proportional to the amount of fuel delivered. Fuel injection is the introduction of fuel in an internal combustion enginemost commonly automotive enginesby the means of an injector.

This alters the position of a shuttle valve within the metering control unit to allow more fuel to be squirted into the cylinders. This system was not a “pulse” or intermittent injection, but rather a constant flow system, metering fuel to all cylinders simultaneously from a central “spider” of injection lines.

Early injection systems used mechanical methods to meter fuel, while nearly all modern systems use electronic metering. The fuel then squirts out into the inlet inejction in the cylinder head. Single-point injection SPI uses a single injector at the throttle body injectioj same location as was used by carburetors. Two-stroke Four-stroke Five-stroke Six-stroke Two-and four-stroke. Then, that cylinder’s designated spark plug fires, igniting the chamber into a high-pressure, high-energy explosion.


Aircraft piston engine components, systems and terminology. Porsche racing variants such as the RSR 2.

Diesel fuel injector for Citroen Saxo D, 57 hp, 5 doors, Price: €

The header has a high pressure relief valve to maintain the pressure in the header and return the excess injechion to the ijjection tank. Scania fordonshistoria in Swedish. Herbert Akroyd Stuart developed the first device with a design similar to modern fuel injection [ citation needed ]using a ‘jerk pump’ to meter out fuel oil at high pressure to an injector. This system was used on the hot-bulb engine and was adapted and improved by Bosch and Clessie Cummins for use on diesel engines Rudolf Diesel injecion original system employed a cumbersome ‘air-blast’ system using highly compressed air [ citation needed ].

Finally, the homogeneity of the fuel mixture allows for leaner air—fuel ratios, which together injectionn more precise ignition timing can improve fuel efficiency. InLucas developed its injection system, which was first used for Jaguar racing cars at Le Mans. Fuel injection was in widespread commercial use in diesel engines by the mids.

The main difference between electronic injection and mechanical injection is that an electronic system is controlled by a complex microprocessor control unit sometimes called an electronic control unit or ECUwhich is basically a miniature injedtion.

With the improved cylinder-to-cylinder fuel distribution of multi-point fuel injection, less fuel is needed for the same power output when cylinder-to-cylinder distribution varies significantly, some cylinders receive excess fuel as a side effect of ensuring that all cylinders receive sufficient fuel.

Gasoline fuel injector for Opel Astra F 1.7 D, 57 hp, station wagon, 1992

L-Jetronic was widely adopted on European cars of that period, and a few Japanese models a short time later. Views Read View source View history. The Ultimate 20 hour car mechanics video course Learn everything about modern cars from our new video series.

Constant-flow injection systems continue to be used at the highest levels of drag racing, where full-throttle, high-RPM performance is key.

Every part explained There’s ridiculous detail on every part. More precise management of the fuel injection event also enables better control of emissions. With a direct injection engine, however, the fuel gets to skip a step and add a bit of efficiency. Fueo functional objectives for fuel injection systems can vary.