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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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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 injectiion intake Supercharger Throttle Throttle body Turbocharger Twin-turbo Variable-geometry turbocharger Variable-length intake manifold Warm air intake.

This is complex and can be expensive. It is then fed straight up pipes to the injectors. In swirl injector, the spray cone angle is controlled by the ratio of the circumferential velocity to the axial velocity and is generally wide compared with nonswirl injectors.

With an assist from modern engine management computers, the fuel gets burned right where it’s needed, when it’s needed [source: The fuel is sprayed with the help of a nozzle that is opened and closed with a needle valve, operated with a solenoid. The solenoid lifts the needle valve from the valve seat, and fuel under pressure is sent in the engine cylinder. Often a fuel rail is used to divide the fuel supply into the required number of cylinders.


How Direct Injection Engines Work

One solution is to fit twin-carburettors, but these are difficult to tune correctly. These examples specifically apply to a modern EFI gasoline engine. The amount of fuel injected depends on how long the solenoid holds the injector open.

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

This unit is driven from the camshaft and its job, as the name suggests, is to distribute the fuel to each cylinder, at the correct time and in the correct amounts.

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 Lucas Service Training Centre. All modern petrol injection systems use indirect injection.

How a fuel injection system works | How a Car Works

Many diesel engineshowever, use direct injection in which the diesel is injected directly into the cylinder filled with compressed air. The justification for single-point injection was low cost. With a direct injection engine, however, the fuel gets to skip a step and add a injecyion of efficiency.

Components Propeller governor Propeller speed reduction unit Spinner. The earliest systems were mechanically controlled. Later versions of the Rolls-Royce Merlin and Wright R used single point fuel injection, at the time called “Pressure Carburettor”. By using this site, you agree to the Terms of Use and Privacy Policy. It needs fuel, air oxygen, to be precise and spark in order to operate.

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.


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. The ECU interprets data from input sensors to, among other tasks, fyel the appropriate amount of fuel to inject.

Fuel injection

Instead a manual control on the dash resembling a choke knob or, on later models, a microprocessor alters the position of the shuttle valve within the metering unit. A fuel injection system Fuel pump Fuel filter Fuel accumulator Fuel distributor Inlet tract Inlet manifold Injectors Cold-start injector Pip from petrol ijnection Return pipe to tank A fuel injection system Petrol-engined cars use indirect fuel injection.

Some cars have multi-point fuel injection where each cylinder is fed by its own injector. This section needs additional citations for verification.

Fuel injection – Wikipedia

It has no venturi, no pressure chambers, no diaphragms, and no discharge valve. 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.

It works, but from an engineering standpoint, it leaves much to be desired, and it’s pretty wasteful. Porsche racing variants such as the RSR 2.

Due to the wartime relationship between Germany and Japan, Mitsubishi also had two radial aircraft engines using fuel injection, the Mitsubishi Kinsei kinsei means “venus” and the Mitsubishi Kasei kasei means duel.