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Message: <blockquote data-quote="Iintercooler" data-source="post: 16954877" data-attributes="member: 512218">Here is summery of the revolution of fuel injection system in automobilesRead the thread about  "4 stroke engines" for better understanding this<a href="http://www.elakiri.com/forum/showthread.php?p=16950512#post16950512" target="_blank">http://www.elakiri.com/forum/showthread.php?p=16950512#post16950512</a>• Fuel injection is a system for admitting fuel into an internal combustion engine• Almost all the diesel engines use that fuel injectionBut in petrol engines,• In old petrol engines used Carburetor which relies on suction created by intake air accelerated through a Venturi tube to draw the fuel into the airstream• In new petrol engines use fuel injection which atomizes the fuel by forcibly pumping it through a small nozzle under high pressureIt has become the primary fuel delivery system used in automotive engines, having replaced carburetors during the 1980s and 1990sThere are few advantages of fuel injection system over the carburetor system• Power output• Fuel efficiency• Emissions performance• Ability to accommodate alternative fuels• Reliability• Driveability and smooth operation• Initial cost• Maintenance cost• Diagnostic capability• Range of environmental operation• Engine tuningThere are two main categories in fuel injection in petrol engines. They are1.    Mechanical injection        -old version2.    Electronic injection (EFI)        -new version (talk about this later..)• In the 1970s and 1980s in the US and Japan, the respective federal governments imposed increasingly strict exhaust emission regulations• Automobile manufacturers began installing fuel injection systems in more gasoline/petrol engines during the late 1970s• Since the early 1990s, almost all gasoline passenger cars sold in first world markets are equipped with electronic fuel injection (EFI)• Carburetor remains in use in developing countries where vehicle emissions are unregulated and diagnostic and repair infrastructure is sparseVarious injection systems (talk about this later..)• Single-point injection• Continuous injection• Central port injection• Multiport fuel injection• Direct injection• Swirl injectionSource:<a href="http://en.wikipedia.org/wiki/Fuel_injection#Mechanical_injection" target="_blank">http://en.wikipedia.org/wiki/Fuel_injection#Mechanical_injection</a>Visit home for more on Automobile:<a href="http://www.elakiri.com/forum/showthread.php?t=1626999" target="_blank">http://www.elakiri.com/forum/showthread.php?t=1626999</a>Please correct me, comment your suggestions and add more detailsThank you for your time.</blockquote>

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