Fuel injection is the introduction of fuel in an internal combustion engine, most commonly The primary difference between carburetors and fuel injection is that fuel injection atomizes the fuel through a small nozzle under high pressure, while  ‎Injector · ‎Atomizer nozzle · ‎Carburetor · ‎Indirect injection. Buy Monark Fuel Injector Nozzle: Fuel Injectors - ✓ FREE DELIVERY possible on eligible purchases. Reports from operators of fuel-injected engines and from Lycoming service representatives provide some insights into the subject of clogged fuel-injector.


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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. The limited production Chevrolet Cosworth Vega was introduced in March using a Bendix EFI system with pulse-time manifold injection, four injector valves, fuel injector nozzle electronic control unit ECUfive independent sensors, and two fuel pumps.

The EFI system was developed to satisfy stringent emission control requirements and market demands for a technologically advanced responsive fuel injector nozzle. L-Jetronic first appeared on the Porscheand uses a mechanical airflow meter L for Luft, German for "air" that produces a signal that is proportional to "air volume".


Fuel injector nozzle approach required additional sensors to measure the atmospheric pressure and temperature, to ultimately calculate "air mass". L-Jetronic was widely adopted on European cars of that period, and a few Japanese models a short time later.

Diesel Fuel Injector Nozzles

The Motorola technology was installed in Ford North American products. Elimination of carburetors In the s and s in the U. During that time period, the vast majority of gasoline-fueled automobile and light truck engines did not use fuel injection.

To comply with the new regulations, automobile manufacturers often made extensive and complex modifications to fuel injector nozzle engine carburetor s. While a simple carburetor system is cheaper to manufacture than a fuel injector nozzle injection system, the more complex carburetor systems installed on many engines in the s were much more costly than the earlier simple carburetors.

To more easily comply with emissions regulations, automobile manufacturers began installing fuel injection systems in more gasoline engines during the late s. Later closed-loop fuel injection systems improved the air—fuel mixture control with an exhaust gas oxygen sensor.

Although not part of the injection control, a catalytic converter further reduces exhaust emissions.

Fuel injection was phased in through the latter s and fuel injector nozzle at an accelerating rate, with the German, French, and U. Since the early s, almost all gasoline passenger cars sold in first world markets are equipped with electronic fuel injection EFI.

Fuel injection - Wikipedia

The carburetor remains fuel injector nozzle use in developing countries where vehicle emissions are unregulated and diagnostic and repair infrastructure is sparse.

Fuel injection is gradually replacing carburetors in these nations too as they adopt emission regulations conceptually similar to those in force in Europe, Japan, Australia, and North America. Many motorcycles still use carburetored engines, though all current high-performance designs have switched to EFI.

Early injection systems used mechanical methods to meter fuel, while nearly all modern systems use electronic metering. Fuel injector nozzle how much fuel to supply The primary factor used in determining the amount of fuel required by the engine is the amount by weight of air that is being taken in by the engine for use in combustion.

Modern systems use a mass airflow sensor to send this information to the engine control unit. Data representing the amount of power output desired by the driver sometimes known as "engine load" is also used by the engine control unit in calculating the amount of fuel required.

Fuel injection

A throttle position sensor TPS provides this information. Other engine sensors used in EFI systems include a coolant temperature sensor, a camshaft or crankshaft position sensor some systems get the position information from the distributorand an oxygen sensor which is installed in the exhaust system so that it can be used to determine how well the fuel has been fuel injector nozzle, therefore allowing closed loop operation.

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Supplying the fuel to the engine Fuel is transported from the fuel fuel injector nozzle via fuel lines and pressurised using fuel pump s. Maintaining the correct fuel pressure is done by a fuel pressure regulator.

Improved Fuel Injector Nozzles

Often a fuel rail is used to divide the fuel supply into the required number of cylinders. The fuel injector injects liquid fuel into the intake air the location of the fuel injector varies between systems. Unlike carburetor-based systems, where the float chamber provides a reservoir, fuel injected systems depend fuel injector nozzle an uninterrupted flow of fuel.

All nozzles must produce a fuel spray that meets the requirements of the performance and emissions goals of the market for which the engine is produced regardless of details of the fuel injector nozzle system design i.


Additionally, specific requirements for injection nozzles can also depend on the fuel system type []: Common rail—nozzle operates under more demanding tribological conditions and must be better designed to prevent fuel injector nozzle.

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