Preview

Essay On Four Stroke Engine

Good Essays
Open Document
Open Document
874 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Essay On Four Stroke Engine
The four stroke engine includes various parts such as, intake, compression, combustion, and exhaust stroke. The term stroke is used to describe the full travel of the piston along the cylinder, in whichever direction. A four stroke engine is one of the most common engine types. It powers almost all trucks and cars today. Each one corresponds to one full stroke of the piston. All four of these parts help make the engine function as a whole.

The first stroke is called the intake stroke the first stroke in the four stroke engine. In the intake stroke, the piston moves downward, drawing a renewed charge of vaporized fuel/air mixture. Basically filling the combustion chamber by pulling in the air and fuel mixture. The intake event occurs when the
…show more content…
The upward stroke of the piston forces the exhausted fuel out of the cylinder. The exhaust stroke lets out the gases (just like a kid who has just passed gas) from the combustion chamber and let out into the air destroying the environment. The exhaust stroke is the last stroke and happens when the exhaust valve is open and the intake valve is closed. Piston movement moves out and the exhaust gases into the air. As the piston reaches the bottom dead center during the combustion stroke the combustion is finished and the cylinder is full with the exhaust gases. The exhaust valve then opens, and the flywheel and all the other moving parts moves the piston back to top dead center. All of the moving exhaust gases goes out through the open exhaust valve. At the end of the exhaust stroke, the piston is at top dead center and one operating cycle has been completed.

Ultimately, the four stroke engine basically has 4 stages which are intake, compression, combustion, exhaust. It basically sums up a combustion engine which is a mixture that is drawn into the cylinder on the first stroke and then is compressed when it is ignited on the second stroke. The work on it is done on the third stroke and the air and fuel mixture of combustion are released through the exhaust valve on the fourth stroke. All of the four stroke function collectively together to help the engine work efficiently as

You May Also Find These Documents Helpful

  • Good Essays

    The normally aspirated 2.4-liter four-cylinder engine provides adequate off the market acceleration and performs well on the highway. This engine makes 184 horsepower and 174 foot-pounds of torque. A 2.0-liter four-cylinder engine is available elsewhere as is a 1.4-liter turbocharged, four-cylinder engine.…

    • 1044 Words
    • 5 Pages
    Good Essays
  • Satisfactory Essays

    Chapter Quiz

    • 519 Words
    • 3 Pages

    Technician A says that an engine's size is called displacement and represents the volume displaced or swept by all of the pistons. Technician B says that engine power is expressed in horsepower and based on the amount of torque or twisting force the engine produces. Which technician is correct?…

    • 519 Words
    • 3 Pages
    Satisfactory Essays
  • Better Essays

    vanBussel, E. F.,Jeerakathil, T., Schrijvers, A. J.P.(2013, June 27). The Process Flow and Structure of an Integrated Stroke Strategy.International Journal of Integrated Car, 13.Retrived from http://www.ijic.org/index.php/ijic/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-114599/2010…

    • 4246 Words
    • 15 Pages
    Better Essays
  • Satisfactory Essays

    Chapter 6 Railroads Quiz

    • 263 Words
    • 2 Pages

    A diesel engine drives a generator/alternator which in turn drives electric traction motors that turn the wheels.…

    • 263 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Carburetor Research Paper

    • 434 Words
    • 2 Pages

    As the pistons move downward, a partial vacuum is created inside the barrel. This partial vacuum then draws air past through the carburetor's throat and into a nozzle that sprays fuel. The mixture of air and fuel in the carburetor is then delivered into cylinders for combustion.…

    • 434 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Chevrolet HHR

    • 502 Words
    • 3 Pages

    A 2.2-liter, four-cylinder engine making 143 horsepower was standard with base models and a 2.4-liter, four-cylinder engine making 172 horsepower was found in upper trim level versions. Both engines are paired with a five-speed manual or a four-speed automatic transmission.…

    • 502 Words
    • 3 Pages
    Good Essays
  • Good Essays

    The process of starting the car begins in the engine cylinders, where gasoline from the fuel injector and the air from the intake valve mix together before being ignited by a spark and form gasses that expand and push the piston. But combustion is an exothermic reaction, which means it release heat. In this process, a lot heat will be released and much of this heat will be escaped through the tail pipe.…

    • 562 Words
    • 2 Pages
    Good Essays
  • Good Essays

    The first step in an internal combustion engine is to acquire all the attributes to create combustion in a chamber. The necessary air flows through the air filter (usually a conical shaped, micro filament, located in either the front right or left of the engine bay). After the air is sucked into the filter it passes through some tubing until it reaches the mass air sensor. The mass air sensor does exactly what it says, senses the amount of air flow and converts it into a signal or number which then is used to determine the amount of fuel to be delivered. The air and fuel must be at a regulated ratio for maximum gas mileage and power efficiency. Next the air goes through the throttle body, this mechanism regulates the amount of air let into the lower half of the engine, and this is attached to the accelerator (gas pedal) by a cable. The further the gas pedal is depressed, the greater amount of air that is let into the engine, which results in faster acceleration.…

    • 943 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Airframe Systems

    • 1868 Words
    • 8 Pages

    An aircraft powered by a piston engine usually tends to have a pneumatic air supply system. This allows the function of different systems on the aircraft that are essential to the flight of the aircraft.…

    • 1868 Words
    • 8 Pages
    Good Essays
  • Good Essays

    Air-standard analysis treats the fluid flow through the entire engine as air and approxi¬mates air as an ideal gas. In a real engine inlet flow may be all air, or it may be mixed, up with 7% fuel, either gaseous or as liquid droplets, or both. In air-standard analysis, even if all fluid in an engine cycle were air, some error would be introduced by assuming it to be an ideal gas with constant specific heats. At the low pressures of inlet and exhaust, air can accurately be treated as an ideal gas, but at the higher pressures during combustion, air will deviate from ideal gas behavior. A more serious error is introduced by assuming constant specific heats for the analysis. Spe¬cific heats of a gas have a fairly strong dependency on temperature and can vary as much as 30% in the temperature range of an engine. During the cycle of a real engine there are heat losses which are neglected in air-standard analysis. Loss of heat during combustion lowers actual peak temperature and pressure from what is predicted. The actual power stroke, therefore, starts at a lower pressure, and work output during expansion is decreased. A detailed study of the performance of a reciprocating internal combustion engine would take into account many features. These would include the combustion process occurring within the cylinder and the effects of irreversibility have associated with friction and with pressure and temperature gradients. Heat transfer between the gases in the cylinder and the cylinder walls and the work required to charge the cylinder and exhaust the products of combustion also would be considered. Owing to these complexities, accurate modeling of reciprocating internal combustion engines normally involves computer simulation. To conduct elementary thermodynamic analyses of internal combustion engines, considerable simplification is required. One procedure is to employ an air-standard analysis having the following…

    • 499 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Like wise the engine is the heart and soul of your automobile, but instead of pumping plasma blood around veins, the engine compress a mixture of fuel and air. The main focus of the engine is to transform air and fuel into motion. This causes the pistons to move up and down to make the automobile to be able to drive down the road…

    • 449 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Now that we have overviewed some of the the major components in the engine, lets start explaining how a four-stroke engine works with the first stroke. The first stroke of the cycle is called the intake stroke. This is where the piston starts off at the top of the cylinder and begins to move downward. When the piston begins to move downward, the intake valve opens and allows air to be drawn into the cylinder. Also during this time, the fuel injector sprays a small amount of gasoline into the chamber that mixes with the air. The gasoline must be vaporized into the air because liquid gasoline will not burn.…

    • 613 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    Engine Performance

    • 14269 Words
    • 58 Pages

    Some of the main engine components This course will provide an introduction to automotive engines and engine performance. Subjects covered will include: • Major engine components • Engine classifications • The four stroke cycle and other engine design operations • Engine construction • Air-fuel systems • Ignition systems • Cooling and lubrication systems • Exhaust systems, computer systems, and emissions • Engine performance and diagnostic strategies • Engine diagnostic tools • Basic diagnostic testing…

    • 14269 Words
    • 58 Pages
    Good Essays
  • Better Essays

    Car Crash

    • 2986 Words
    • 12 Pages

    The difference between the four stroke and the two stoke engine is simple. The two stoke engine doesn’t have any valves; the pistons are the valve and in every revolution there is compression. In a four stoke engine every other revolution is compression, and has intake and exhausted valves (Ham).…

    • 2986 Words
    • 12 Pages
    Better Essays
  • Powerful Essays

    Plenum

    • 2362 Words
    • 13 Pages

    then mixed with the fuel and sent to the combustion chamber. The construction of the intake…

    • 2362 Words
    • 13 Pages
    Powerful Essays