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  2. Common ethanol fuel mixtures - Wikipedia

    en.wikipedia.org/wiki/Common_ethanol_fuel_mixtures

    Ethanol fuel mixtures have "E" numbers which describe the percentage of ethanol fuel in the mixture by volume, for example, E85 is 85% anhydrous ethanol and 15% gasoline. Low-ethanol blends are typically from E5 to E25, although internationally the most common use of the term refers to the E10 blend. Blends of E10 or less are used in more than ...

  3. Air–fuel ratio - Wikipedia

    en.wikipedia.org/wiki/Air–fuel_ratio

    Air–fuel ratio (AFR) is the mass ratio of air to a solid, liquid, or gaseous fuel present in a combustion process. The combustion may take place in a controlled manner such as in an internal combustion engine or industrial furnace, or may result in an explosion (e.g., a dust explosion),The air–fuel ratio determines whether a mixture is combustible at all, how much energy is being released ...

  4. Combustor - Wikipedia

    en.wikipedia.org/wiki/Combustor

    In a gas turbine engine, the combustor or combustion chamber is fed high-pressure air by the compression system. The combustor then heats this air at constant pressure as the fuel/air mix burns. As it burns the fuel/air mix heats and rapidly expands. The burned mix is exhausted from the combustor through the nozzle guide vanes to the turbine.

  5. Stratified charge engine - Wikipedia

    en.wikipedia.org/wiki/Stratified_charge_engine

    A stratified charge engine describes a certain type of internal combustion engine, usually spark ignition (SI) engine that can be used in trucks, automobiles, portable and stationary equipment. The term "stratified charge" refers to the working fluids and fuel vapors entering the cylinder. Usually the fuel is injected into the cylinder or ...

  6. Otto cycle - Wikipedia

    en.wikipedia.org/wiki/Otto_cycle

    The Otto cycle is a description of what happens to a gas as it is subjected to changes of pressure, temperature, volume, addition of heat, and removal of heat. The gas that is subjected to those changes is called the system. The system, in this case, is defined to be the fluid (gas) within the cylinder.

  7. Naturally aspirated engine - Wikipedia

    en.wikipedia.org/wiki/Naturally_aspirated_engine

    In a naturally aspirated engine, air for combustion (Diesel cycle in a diesel engine or specific types of Otto cycle in petrol engines, namely petrol direct injection) or an air/fuel mixture (traditional Otto cycle petrol engines), is drawn into the engine's cylinders by atmospheric pressure acting against a partial vacuum that occurs as the piston travels downwards toward bottom dead centre ...

  8. Lean-burn - Wikipedia

    en.wikipedia.org/wiki/Lean-burn

    Lean-burn. Lean-burn refers to the burning of fuel with an excess of air in an internal combustion engine. In lean-burn engines the air–fuel ratio may be as lean as 65:1 (by mass). The air / fuel ratio needed to stoichiometrically combust gasoline, by contrast, is 14.64:1. The excess of air in a lean-burn engine emits far less hydrocarbons.

  9. DOCUMENT RESUME ED 092 693 Aircraft Fuel, Fuel Metering ...

    files.eric.ed.gov/fulltext/ED092693.pdf

    (Aircraft Fuel, Fuel Metering, Induction and Exhaust Systems) Department 48 - Course 9057.02. ENGINE FUEL SYSrEMS (15 hours) A. Inspect, Check, Service, Troubleshoot and Repair. Engine Fuel Systems (Level-3) (Eir-6 hrs) (T-3 hrs) (L, /S -3 hrs) 1. Interpret Federal Aviation Regulations Governing. Fuel Systems. a. Fuel tanks. b. Fuel system ...

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