A design methodology for automotive component manufacturing. The excess fuel is bypassed to the intake side of the fuel transfer pump through a relief valve. The fuel is stored in the fuel tank and the fuel pump draws fuel from the tank. Then it can be compressed in the engine cylinder and ignited to produce energy or power. The fuel injection pump is fed with fuel in abundance. Airfuel mixture chemically stored energy useful work. The unit includes identification and confirmation of work requirement, preparation for work, inspection, analysis and servicing of cooling systems and completion of work finalisation processes, including cleanup and documentation. A control system in its simplest form is the expression of a wish and then its fulfillment. Understand the function and operation of governors and fuel system components. The more complicated systems are not just onoff control they are built up as control systems, not just onoff.
Early vehicle fuel systems were completely mechanical systems delivering fuel through the use of a mechanical fuel pump and using a carburetor to atomize and mix the fuel with air. Because number 2 diesel fuel is less volatile, it tends to create hard starting in cold weather. Constantia arial calibri wingdings 2 flow flow flow flow powerpoint presentation understanding the. Fuel injectors and carburetors have tiny openings which clog easily so filtering the fuel is a necessity. It is this evolution that is the primary focus of this book. Aug 26, 2012 this feature is not available right now. Fuelmanagement systems are designed to effectively measure and manage the use of fuel within the transportation and construction industries. Find out how fuelinjection systems work and about the various configurations used in the cars today. Now, all cars sold in the united states have fuel injection systems. Principle and working of electronic fuel injection system. Electrical and computer engineering, university of wisconsinmadison 1990 submitted to the sloan school of management and the department of electrical engineering and computer science in partial fulfillment of the requirements for the degrees of. Overview as a construction mechanic, you will be working with different types of fuel systems for the internal combustion engine. Fuel pumps mounted to the engine use the motion of the engine to pump the fuel, most often being driven by the camshaft, but sometimes the crankshaft.
Turbocharging edit a turbocharger is a device which reuses the engines exhaust gases to cram more air into the engine, resulting in more power. Chapter 8 automotive electrical circuits and wiring. It is important to know how these components function. Explain how the air and fuel systems work together and why it is necessary to have an air filter and fuel filter. Fuel of the future rachel chamousis abstract hydrogen is an energy carrier that can transform our fossilfuel dependent economy into a hydrogen economy, which can provide an emissionsfree transportation fuel. Hydrogen fuel cell fuel cells are similar to batteries, but designed for continuous replenishment of energy via external fuel many different types of fuel cells, most common will likely be the pem fc hydrogen and oxygen in, water vapor and liquid water out typical output is about. The last carburetorequipped car came off the assembly line in 1990. Choke system there are six different systems fuel air circuits in a carburetor that make it work. Jim halderman brings a world of experience, knowledge, and talent to his work. Presentation given at the 16th directions in engineefficiency and emissions research \deer\ conference in detroit, mi, september 2730, 2010. Fuel cycle when car starts working when you put the key in contact and key rotates at the second time the starter go engaged with flywheel causes it to rotate which causes the crank shaft and timing belt to rotate and causes fuel pump to rotate. Major elements of the gasoline fuel supply system include the following. Automotive fuel and emissions control systems, 4th edition.
This chapter describes several specific sensors used in automobiles, such as. The main components of the fuel system in diesel engine are. Know the various components in a diesel engine fuel system. Clean fuel is critical to engine life and performance. The way these systems are arranged in the carburetor determines the carburetors size and shape. Automotive fundamentals 1 understanding automotive electronics 3 environmental regulations and an increased need for economy have resulted in electronics being used within a number of automotive systems. Both methods of forced induction increase fuel consumption because as more air is forced into the engine, more fuel must be added as well to maintain a safe airfuel ratio. But fuel injection has been around since the 1950s, and electronic fuel injection was used widely on european cars starting around 1980. The important properties of these fuels are given below.
This works much like the spray nozzle of a hose, ensuring that the fuel comes out as a fine mist. The 1990 subaru justy was the last car sold in the united states to have a carburetor. His automotive service experience includes working as a flatrate technician, a business owner, and a professor of automotive technology at a leading u. Introduction to automotive technology is the first in the ninemodule series. Chapter 6 cooling and lubrication systems topics 1.
Light vehicle mechanics who service and repair the mechanical parts of motor vehicles such as engines, transmissions clutch, gear box and differential and suspension systems. Introduction to fuels petrol and diesel are fuels that are particularly suitable for use in internal combustion engines fuel is mixed with air and introduced into the engines cylinder in order to be burnt within the engines otto cycle introduction to fuel systems mixture strength the mixture strength is the proportion of air that is mixed. Understand the principles and operation of the different diesel fuel systems. His automotive service experience includes working as a flatrate technician, a business owner, and a professor of automotive technology at a. Electronic fuel injection system is controlled by an electronic control unit.
May 04, 2019 there are two grades of diesel fuel used in automobiles today. Choke system there are six different systems fuelair circuits in a carburetor that make it work. Vehicle ignition systems have evolved significantly over the years to deliver improved, more reliable and more powerful performance. Overview the electrical systems on equipment used by the navy are designed to perform a variety of functions. The learning objectives of this video are that the learner will. Fuel systems presentation gasoline linkedin slideshare. Keywords waste heat recovery, thermoelectric generator, filled skutterudites, fuel economy. The fuel filter removes any impurities or debris from the gasoline before it gets into the engine. Thermoelectric generator development for automotive waste heat recovery author. Air fuel mixture chemically stored energy useful work. Most of the system today is either electronically controlled andor monitored.
This is a very important step and a clean fuel filter is key to a longlasting and cleanrunning engine. All automotive ignition systems except diesels have to. The airfuel mixture must be in proportion to the speed and load placed on the engine. In a gasoline engine, the speed of the engine is controlled by the amount of air admitted into the carburetor or gasoline fuel injection systems. This airfuel mixture then enters all of the combustion chambers as needed.
How fuel injection systems work auto howstuffworks. The function of the vehicle fuel system is to store and supply fuel to the engine. As the contained fuel burns, it expands, releases heat, and exerts the force to initiate the kinetic energy. Fuel injection systems are comprised of a complex array of components that work together to supply fuel to the vehicles engine.
Automotive engines have gone through tremendous changes since the automobile was first introduced in the 1880s, but all combustion engines still have three requirements that must be met to do their job of providing. The receiverdryer the receiverdryer the receiverdryer is used on the high side of systems that use a thermal expansion valve. Just like with wrist watches, fuel injection can work. Business process management for automotive end of life processes 3 changing dynamics in the automotive industry marketplace growth, outsourcing product development activities, customer demands for improved reliability, humanvehicle interaction software, and competition are changing the dynamics in the automotive industry. Fuel system gasoline points of presentation fuel cycle when car starts working design of fuel system parts types of fuel system carburetor working injection working which is preferable of fuel systems thanking 3. Introduction to engine repair study guide 2007 melior, inc. The automotive electrical system contains five electrical circuits. Know the requirements for a basic fuel system for a diesel engine. Fuel injection systems diesel ruimanuelvieirapinto 1090039 sistemas automoveis anolectivo20092010 fuel injectionsystems diesel sistemas automoveis anolectivo20092010 1 basic diesel fuel systems 2 injection pumps 3 injectors 4 inline injection pump 5 radial rotary injection pump 6 electronic injection systems 7 bibliography. The input to the control system is a wish, a desired value. Automotive repair maintenance apprenticeshipcentral. Depending on the particular system, the fuel is fired into either the inlet manifold or the inlet port via an injector. Sparkignition engine 32% diesel engine 43% 10% drivetrain loss fuel tank engine transmission wheel planetary gears switching valves h multidisc clutch.
Before it can get to the engine, the gas has to pass through the fuel filter. The engine intake system is where the fuel is mixed with air, atomized, and vaporized. The fuel mixes with the air passing through the inlet manifold or port and the fuel air mixture enters the combustion chamber. Actuators can adjust engine idle speed, change suspension height or regulate the fuel metered into the engine. Explosive force in the cylinder pushes the piston creating the initial movement in the mechanical energy train.
Three types of vehicle ignition systems and how they work. The fuel systems job it is to store and supply fuel to the engine. Fuelmanagement systems are used to maintain, control and monitor fuel consumption and stock in any type of industry that uses transport, including rail, road, water and air, as a means of business. The intake, compression, power, and exhaust strokes occur in the same order. An actuator is an electromechanical device such as a relay, solenoid or motor. Automotive systemsintake system wikibooks, open books. In the picture, fill in the vehicle material flow for air, fuel and exhaust and the energy flow. A design methodology for automotive component manufacturing systems by brian klippel b. As hot compressed gasses are introduced into the top of the condenser, theyre cooled off.
Nov 24, 2015 this air fuel mixture then enters all of the combustion chambers as needed. Fuel system overview below is an overview of fuel system operation the fuel system overview the purpose of the fuel system is to provide a mixture of fuel and air to the engine of the car. Business process management for automotive end of life. Incorporates introduction to some leading automobile technology with regards to their working principle, and how these technologies are provided to us. This makes it easier to monitor for faults, and then diagnose specific problems, rather than having to manually query numerous subcontrollers distributed throughout a car or truck. The necessity of controlling the energy and motion has led to the modern, complicated automotive engine systems. 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 management systems are used to maintain, control and monitor fuel consumption and stock in any type of industry that uses transport, including rail, road, water and air, as a means of business. Direct fuel injection systems also called port fuel injection have injectors delivering fuel right into the individual combustion chambers and have at least one injector per cylinder. Both methods of forced induction increase fuel consumption because as more air is forced into the engine, more fuel must be added as well to maintain a safe air fuel ratio. The common fuels for internal combustion engines are. The figure includes both in service vehicles and those that have been retired during the evaluation. Electronic fuel injection system is controlled by an electronic control unit working of efi.
Vehicles were retired due to performance loss, end of fuel cell life, end of vehicle test, or other catastrophic failure unrelated to the fuel cell system. Identify the major parts of an automotive brake system. Caution to reduce the chance of personal injury andor property damage, the following instructions must be carefully observed. Number 2 diesel fuel has a lower volatility and is blended for higher loads and steady speeds, therefore works best in large truck applications. Today, there are three primary ignition systems, and despite their differences in technology and components, they all work on the same basic principles. Mar 30, 2010 although fuel systems vary from engine to engine, all systems are the same in that they must supply fuel to the combustion chamber and control the amount of fuel supplied in relation to the amount of air. Overview all internal combustion engines are equipped with cooling and lubricating systems that work in conjunction with each other to promote efficient engine operation and performance. There are two grades of diesel fuel used in automobiles today. A systems design approach has been used to break down the whole engine management into three. Business process management for automotive end of life processes. Design of electronic control unit ecu for automobiles.
Fuel cell electric vehicle durability and fuel cell. This is an advantage in that the fuel cells require little warmup time, high temperature hazards are. Fuel management systems are designed to effectively measure and manage the use of fuel within the transportation and construction industries. As the gas cools, it condenses and exits the bottom of the condenser as a high pressure liquid. The pressure cap keeps the radiator from boiling over by increasing the pressure on the coolant. The can bus system consists of a primary controller that keeps watch over all vehicle systems from a central location. Mechanically, the diesel engine is similar to the gasoline engine. Automotive technology basic worksheets europalehrmittel. Automotive systemsintake system wikibooks, open books for. Ignition systems module 3 engine performance, section 2. Module 2 electrical systems module 3 engine performance, section 1. Thermoelectric generator development for automotive waste.
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