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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Inside the control unit is another restriction, which controls the fuel mixture. Auxiliary power unit Coffman starter Hydraulic system Ice protection system Recoil start.

Fuel injection

The fuel is sprayed with the help of a nozzle that is opened and closed with a needle valve, operated with a solenoid. This makes it run more quietly than a mechanical system does. Fuel injection introduces potential hazards in engine maintenance due to the high fuel pressures used.

This little bang pushes the piston back down with tremendous force, causing fuek to turn the crankshaft and ultimately send power to the wheels. At precisely timed intervals, ijection valves open, corresponding to the different cylinders of the engine. Single-point injection SPI uses a single injector at the throttle body the same location as was used by carburetors.

Once the engine has warmed up to a certain temperature, a thermoswitch automatically cuts off the cold-start injector.

Exhaust emissions are cleaner because the more precise and accurate fuel metering reduces the concentration of toxic combustion byproducts leaving the engine.

In a common rail system, the fuel from the fuel tank is supplied to the common header called the accumulator. This system used a tuel gasoline fuel pump, to provide fuel ful a mechanically driven injection pump, which had separate plungers per injector to deliver a very high injection pressure directly into the combustion chamber. The relative proportions of air and fuel vary according to the type of fuel used and the performance requirements i.

From the metering unit, the fuel is delivered to each of the injectors in turn. This computer is fed with information from sensors mounted on the engine.


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. These systems suffer from the drawbacks of being mechanically complex and having poor response to backing off the throttle. Benefits of fuel injection include smoother and more consistent transient throttle response, such as during quick throttle transitions, easier cold starting, more accurate adjustment to account for extremes of ambient temperatures and changes in air pressure, more stable idling, decreased maintenance needs, and better fuel efficiency.

The plunger connected to the fuel metering system that mechanically dispensed fuel to the cylinders via distribution tubes. Later versions of the Rolls-Royce Merlin and Wright R used single point fuel injection, at the time called “Pressure Carburettor”.

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. It’s more injectionn to have single-point injection where a single injector feeds all the cylinders, or to have one injector to every two cylinders. This page was last edited on 20 Decemberat The invention of mechanical injection for gasoline-fueled aviation engines was by the French inventor of the V8 engine configuration, Leon Levavasseur in Modern digital electronic fuel injection systems optimize these competing objectives more effectively and consistently than earlier fuel delivery systems such as carburetors.

The more consistent and predictable composition of the exhaust makes emissions control devices such as catalytic converters more effective and easier to design. In a direct injection engine, fuel is injected into the combustion chamber as opposed to injection before ijnection intake valve petrol engine or a separate pre-combustion chamber diesel engine. 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.

Single-point injection was used extensively on American-made passenger cars and light trucks duringand in some European cars in the early and mids. Chevrolet introduced a mechanical fuel injection option, made by General Motors ‘ Rochester Products Divisionfor its V8 engine in U. Split-single I2 V2 F2.


Carburetor Gasoline direct injection Common rail. Earlier systems, relying on simpler injectors, often injected into a sub-chamber shaped to swirl the compressed air and improve combustion; this was known as indirect injection.

All modern petrol injection systems use indirect injection. Did cars ever have external combustion engines?

Gasoline fuel injector for Opel Astra F D, 57 hp, station wagon, Price: €

Fuel injection also dispenses with the need for a separate mechanical chokewhich on carburetor-equipped vehicles must be adjusted as the engine warms up to normal fuek. Due to the wartime relationship between Germany and Japan, Injecttion also had two radial aircraft engines using fuel injection, the Mitsubishi Kinsei kinsei means “venus” and the Mitsubishi Kasei kasei means “mars”. In a continuous injection system, fuel flows at all times from the fuel injectors, but at a variable flow rate.

In this system, fuel is drawn from the tank by an electric pump. It has no venturi, no pressure chambers, no diaphragms, and no discharge valve. The Bendix system is a direct descendant of the pressure carburetor. The intake is only slightly wet, and typical fuel pressure runs between psi. The fuel then squirts out into the inlet port in s57 cylinder head. The injectors through which the fuel is sprayed are screwed, nozzle-first, into either the inlet manifold or the cylinder head and are angled so that the spray of fuel is fired towards the injectioh valve.

Fuel pressure is similar to a single-point injection system.

How Direct Injection Engines Work

The most common automotive continuous injection system is Bosch’s K-Jetronicintroduced in Unlike carburetor-based systems, where x57 float chamber provides a reservoir, fuel injected systems depend on an uninterrupted flow of fuel. Because of the presence of the gas core, the discharge coefficient is generally low. Constant-flow injection systems continue to be used at the highest levels of fyel racing, where full-throttle, high-RPM performance is key.

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