Electronic fuel injection efi is interesting tech, critical to the performance of a modern engine. The efi engines run more smoothly, with lower emissions and fuel consumption. Gas engines can use gasoline direct injection, where the fuel is directly delivered into the combustion chamber, or indirect injection where the fuel is mixed with air before the intake stroke. Fuel injection systems diesel ruimanuelvieirapinto 1090039. Also get the seminar topic paper on electronic fuel injection with abstract or synopsis, advantages and disadvantages, presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2016 2017. The system is controlled by an electronic control unit ecu. Mk2 tr6 electronic fuel injection conversion history. The main difference between carburetor and fuel injection system carburetorzfuel is atomized by processes relying on the air speed greater than fuel speed at the fuel nozzle, zthe amount of fuel drawn into the engine depends upon the air velocity in the venturi fuel injection systemzthe fuel speed at the point of delivery is greater than the air speed to atomize the fuel. An electronic fuel injection system efi is a more complicated fuel system than a carbureted system. Diesel engine computer systems electronic unit fuel injection eui systemsrelying on data the oem loaded into the ecm, throttle position, engine and outdoor temperature, and even altitude, the computer system energizes and deenergizes the solenoids that control the. Hilborn fuel injection offers a wide range of ir manifolds and blown efi systems for street rodding to full race competition.
Todays impressively powerful vehicles are possible through direct fuel injection. Take a technological leap forward with a new electronic fuel injection system from summit racing. Virtually every vehicle built since the late 1980s and early 1990s have been equipped with some type of electronic fuel injection. It uses the electronic sensors for precise metering of fuel. An efi system relies on injectors and a fuel pump to control fuel flow and to feed the engine. Electronic components used in control systems are often designed to carry very low voltage, and are very susceptible to damage caused by electrostatic discharge. Contact us for a free cd catalog and price list to be mailed out or view flip catalog view pdf catalog view pdf current price list leader in the pioneering and implementation of fuel injection systems mechanical fuel injection 866 4646553 electronic fuel injection 215 6434607. Pdf development of an electronic fuel injection system for a 4. Basic efi electronic fuel injection fuel injection throttle scribd. Thank you very much for purchasing thefi system ecu electronic control unit. Electronic fuel injection seminar report, ppt, pdf for. An electronic control unit receives information in the form of electric signals from the sensors. Pdf automobile engineering report on electronic fuel. Fi is a fuel injection system for small displacement motorcycle, and this.
John beck robert barkhlmer david stelnmeyer john kelly bkm inc. Find out how fuelinjection systems work and about the various configurations used in the cars today. The fuel pump pulls fuel from the gas tank, pressurizes it and forces it to the fuel injectors. The following information is intended to offer a very brief tutorial on. Fuel injection system an overview sciencedirect topics. Control the amount of fuel that goes to the injector. This paper describes advanced electronic fuel injection system for small 4stroke vehicles. Next, well check out the basic, correction, and control inputs. Automobile engineering report on electronic fuel injection system. It was inevitable that electronic fuel injection technology, successfully introduced for highspeed diesel engines, would eventually be applied to benefit mediumspeed designs lucas bryce which became delphi bryce, now part of the woodward governor group first demonstrated. Vw ljetronic fuel injection workshop manual author. Caution to reduce the chance of personal injury andor property damage, the following instructions must be carefully observed. There are numerous benefits in replacing carburetors with electronic fuel injection efi for fuel delivery on uav engines. Principle of efi efi is an indirect, pressurized injection system with injectors operated by.
Pdf advanced electronic fuel injection systems an emissions. The following characteristics of an injection system are desirable in achieving these goals. Part 2 fuel system operation fuel pump the electric fuel pump, located in front of the fuel tank, is a roller type pump operated by a permanent magnet motor. We carry many efi systemsmany selftuning and selflearningfrom the top players in engine performance, including msd ignition, edelbrock, holley, fast, accel, chevrolet performance, quick fuel, and more. Originally hated as computercontrolled carburetors, efi gained reliability in the 1980s and picked up performance in the 1990s. The following guide primarily discusses multiport electronic fuel injection systems since it is the dominate system used in most performance and racing applications. These sensors are mounted at different parts of the engine. This system consists of the unit injectors, fuel manifolds, electronic pressure regulator, high pressure fuel pump, electronic control unit, wiring harness, and engine sensors. Since then, fuel injectors have been the primary means of getting gasoline into the engine cylinder so it can combust and you can drive. Fuel injection is the introduction of fuel in an internal combustion engine, most commonly automotive engines, by the means of an injector all diesel engines use fuel injection by design. Most of the theory and operation of multiport systems is. The electronic control unit has an internal program for this condition and provides the correct injection pulse duration when normal driving conditions are detected by the sensors.
In the modern world, automotive electronics play an important role in the manufacturing of any passenger car. The majority of the time the engine encounters partial load conditions. Pdf as a broadcast to attain it is not provided in this website. Pdf electronic fuel injection system electronic fuel. Injector nozzle breakage and leakage problems were solved. Electronic fuel injection efi system use engine sensors, a computer and solenoid operated fuel injector to meter and inject right amount of fuel into the cylinders. Basic efi electronic fuel injection free download as powerpoint presentation. Injection pressures during the whole process should be above 1200 bar for a good spray formation and airfuel. Electronic fuel injection systems hilborn fuel injection. December 1993 contract daaeo790cr030 prepred fot united states army tank automotive command wcffen, mi 48397. Advantages of electronic injection system over carburetor.
Electronic injection system advantages of electronic injection system over carburetor. In this way, by the use of mechanical petrol injection, the fuel is supplied to the engine cylinder via injector. Advanced diesel electronic fuel injection and turbocharging n. However, the achievement of these benefits necessitates a comprehensive integration and calibration for each engine installation. Modern automobiles use electronic fuel injection efi in their fuel delivery system in order to increase the efficiency. You may not be an electronic engineer, but after reading the. Pdf electronic control fuel injection system based on gt. Working of diesel fuel injector and how nozzle spray this animated video shows the working principle of a common rail. Electronic fuel injection system electronic control unit instruction. Efielectronic fuel injection systems at summit racing. Electronic control fuel injection system based on gtpower and mototron article pdf available in procedia engineering 174. In the mechanical injection system, there are some limitations, but in the case of the electronic petrol injection system, we can overcome that.
File type pdf bosch electronic fuel injection systems shop manual understand and work with the fi bosch electronic fuel injection systems shop manual understand and work with the fi en bosch gasoline direct injection bosch gasoline direct injection as the key to clean and economical engines. The benefits of electronic fuel injection efi power4flight. Depending on the system design, the timing of when injector opens is either relative each individual cylinder for a sequential fuel injection system, or injectors for. The armature and bearings are cooled and lubricated by the fuel flowing through the pump. Marine electronic fuel injection mefi section 1 general. Zenith electronic engine management system propane and gasoline electronic fuel injection. Because of that, fuel pumps are a popular product line for shops to carry. After a number of problems with the lucas mechanical injection system whilst touring in the tr6, the mk1 conversion was developed to overcome these short comings. Introduction the electronic fuel injection system fitted to most modern vehicles combines sophisticated computer controls with a high pressure fuel delivery system to provide optimum power and fuel efficiency. Get electronic fuel injection seminar report and ppt in pdf and doc. Electronic fuel injection system for a 2stroke all. The injection pumpfuel distributor assembly is driven. Explore electronic fuel injection with free download of seminar report and ppt in pdf and doc format.
Comparison of the fuel line pressure, injector needle lift and the in cylinder pressures of efi visavis mechanical fuel. Bosch electronic fuel injection systems shop manual. By clicking the link, you can find the further book to read. Well examine the fuel delivery system first and then the engine control module after a brief look at the idle air controls which are not controlled by the ecm. Doug woodyard, in pounders marine diesel engines and gas turbines ninth edition, 2009. Between the years 1973 and 1995, the highly reliable, mechanical multipoint injection system kjetronic was installed as original equipment in seriesproduction vehicles. Electronic fuel injection efi system explained merits. Principle and working of electronic fuel injection system. Automotive electronics consists of advanced sensors, control units, and mechatronic actuator making it increasingly complex. Vw ljetronic fuel injection workshop manual created date.
Electronic fuel injection efi is the most common example of automotive. Fuel injection is a system for mixing fuel with air in an internal combustion engine. Online library electronic fuel injection system diesel engine. The last carburetorequipped car came off the assembly line in 1990. Properly selecting electronic fuel injection components one of the more commonly misunderstood aspects of electronic fuel injection efi is how to select the correct size fuel injectors, fuel pump and mass air flow maf sensor for a particular engine horsepower output. The conversion was installed, setup at the emerald rolling road and featured in the. Understanding electronic fuel injection know your parts. Electronic fuel injection seminar report, ppt for me. When disconnecting and connecting the ecu couplers, make sure to turn off the ignition switch, or electronic parts may get damaged. Yeah, this is it book comes later the further assistance and lesson all become old. It is possible for less than 100 volts of static electricity to cause damage.
A servojet electronic fuel injection system was designed and manufactured for the cummins vta903 engine. The injection pump fuel distributor assembly is driven. This paper describes two advanced electronic fuel injection systems for small vehicles which have recently become commercially available. Advanced diesel electronic fuel injection and turbocharging. Acces pdf electronic fuel injection system diesel engine our customers have a better understanding of how a common rail diesel. A highpressure electric pump is required to generate pressure so. Efielectronic ignition k100 2v troubleshooting disclaimer.