ciclo otto ingles

7/31/2019 Ciclo Otto Ingles

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OTTO ENGINE


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ELEMENTS OF MOTOR

1. Cylinder Block

2. butt3. sump4. Multiples (Collectors)


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Cylinder Block

The cylinder block are located with their shirts, holes orcavities that arepracticed in it, inside which thepistons move. The latter is considered the heartof theengine.


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The most common provisions of the cylinders canbe found in the blocks ofgasoline engines are:

1.- On-line

2.- "V"3.- Planes with cylinders arranged oppositely


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PISTON Is the component which moves inside the cylinder whichreceives it directly onthe impact of combustion of themixture. It is divided into two main parts, the so-called head of the piston and piston skirt another call.


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SPARCK PLUG

Electrode coated with a ceramic insulator material. At itsupper end is connected to one of the high tensionwires or voltage from the distributor, where hereceived an electric charge of between 15 000 and 20

000 volts or so.


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At the other end of the spark plug has a screw tofit lica goal in the butt and an electrode that is locatedinside the camera Fuel n.

The function n of the spark plug is to jump on the

electrode spark ela ctricawithin the camera Fuel n of the cylinder when it receives the burdenof highvoltages n from coil ignition n and distributor. Oncue, the spark caused theexplosion of the fuel-air mixture sets in motion the pistons. Eachengine requires a spark plug per cylinder thatcontains the block.


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OTTO ENGINE OPERATION


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When the crank arm is in an upright position, the

piston is ranked highest of his career. This situationis said to be in the top dead center (TDC).

And when the piston is at the lower part of his tour, issaid to be in the bottom dead center (PMI). Thedistance between two points is called a dead career.

As the piston makes a stroke, the crankshaftrotates around.


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The four-stroke Otto engine are:

ADMISSION At the beginning of this time the piston is at TDC. At thistime the intake valve is open and the piston, in your

career or downward movement is creating a vacuuminside the combustion chamber as it reaches the PMI,be helped by the starterwhen we start engine, orbecause the movement itself that gives the

wheelinertia once it is running.


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The vacuum created by the piston at this

time, causes the air-fuel mixture that sends thecarburetor to the intake manifold from enteringthe combustion chamber of the cylinderthrough the intake valve open.


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COMPRESSION

Once the piston reaches BDC, the camshaft, whichrotates synchronously with the crankshaft and has until

now kept open the inlet valve to allow the air-fuelmixture enters the cylinder, closed. At that

moment the piston begins to risecompressing themixture of air and gasoline inside the cylinder.


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EXPLOSION. Once the cylinder reaches TDC and the air-

fuel mixture has reached themaximum compression in an electrical spark jumps theelectrode of the spark plug that ignites the mixture andmakes it explode. The force of the explosionforces

the piston down sharply and this movement istransmitted straight through the rod to thecrankshaft, where it becomes useful work and rotationalmovement.


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ESCAPEEl pistn, que se encuentra ahora de nuevo en el PMI

despus de ocurrido el tiempo de explosin, comienza asubir.

El rbol de leva, que se mantiene girandosincrnicamente con el cigeal abre en ese momento lavlvula de escape y los gases acumulados dentro delcilindro, producidos por la explosin, son arrastrados porel movimiento hacia arriba del pistn, atraviesan lavlvula de escape y salen hacia la atmsfera por un tubo

conectado al mltiple de escape.

ciclo otto ingles

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