otto cycle

CENTRO VENEZOLANO AMERICANO DEL ZULIA

LEVEL 12 - SPEAKING LEVEL

OTTO CYCLE

Participants:

Eng. Danny E. Veitia M.

Eng. Freddy J. Higuerey

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Higuerey and Veitia (2008)Otto Cycle

CONTENT

INTRODUCTION

BIOGRAPHY. NIKOLAUS AUGUST OTTO

PRINCIPALS MOTORS PARTS.

OTTO CYCLE.

APPLICATIONS.

IMPACTS ON SOCIETY AND ENVIRONMENT.

REDUCING THE NEGATIVE IMPACT

CONCLUSION.



June, 14 1832. He was bornJune, 14 1832. He was born

Nikolaus A. Otto

1832 - 1891

1848, he left school1848, he left school

1859, began experimenting with engines (Etienne Lenoir

´s academy)

1859, began experimenting with engines (Etienne Lenoir

´s academy)

1861, built his first engine1861, built his first engine

1864, Co-funded an engine manufacturing business

1864, Co-funded an engine manufacturing business

1884, Received an award1884, Received an award

January, 26 189, he diedJanuary, 26 189, he died

NIKOLAUS AUGUST OTTO. BIOGRAPHY


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MAINS MOTOR PARTS

C: CrankshaftC: Crankshaft

R: Connecting RodR: Connecting Rod

P: PistonP: Piston

S: SparkplugS: Sparkplug

W: Cooling water ducts W: Cooling water ducts

V: Valves. Red: exhaust, Blue: intake

V: Valves. Red: exhaust, Blue: intake

E: Exhaust valve camshaft E: Exhaust valve camshaft

I: Scavenge air valve camshaft

I: Scavenge air valve camshaft



PICTURES: MOTORS PARTS

C

R, P

S

V

E, I


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http://en.wikipedia.org/wiki/Image:Piston.jpg

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OTTO CYCLE (Four strokes)

Intake / Induction stroke

Intake

The piston descends and reduce the pressure.

Fuel and air is forced into the cylinder

The intake valve then close.

Intake

The piston descends and reduce the pressure.

Fuel and air is forced into the cylinder

The intake valve then close.


http://en.wikipedia.org/wiki/Image:Four_stroke_cycle_intake.png


Compression stroke


Compression

The piston ascends and compress the fuel-air mixture.

Compression

The piston ascends and compress the fuel-air mixture.

http://en.wikipedia.org/wiki/Image:Four_stroke_cycle_compression.png




Ignition of fuel and Power stroke


Ignition and power stroke

The air-fuel mixtured is ignited by an sparkplug.

The resulting expansion of burning gases pushes the piston downward

Ignition and power stroke

The air-fuel mixtured is ignited by an sparkplug.

The resulting expansion of burning gases pushes the piston downward


http://en.wikipedia.org/wiki/Image:Four_stroke_cycle_power.png

http://en.wikipedia.org/wiki/Image:Four_stroke_cycle_spark.png


Exhaust stroke


Exhaust stroke

The piston pushes the products of combustion from the cylinder trought an exhaust valve.

Exhaust stroke

The piston pushes the products of combustion from the cylinder trought an exhaust valve.





APPLICATIONS.

Internal combustion engines

(Otto Cycle)

Internal combustion engines

(Otto Cycle)

AutomobilesAutomobiles

TrucksTrucks

MotorcyclesMotorcycles

BoatsBoats

Electric generators, etc.Electric generators, etc.

AircraftAircraft



PICTURES: APPLICATIONS


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IMPACTS ON SOCIETY AND ENVIROMENT

Pollution Accidents

Obesity


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REDUCING THE NEGATIVE IMPACTS

Fuel Taxes

Alternative Fuels

Hybrids Cars


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CONCLUSION

OTTO CYCLE WAS PROBABLY THE GREATEST INVENTIONT FOR TRANSPORTATION IN THE 19TH CENTURY AND IT IS THE MOST COMMON ENGINE NOWADAYS.

AUTOMOBILE INSDUSTRY SHOULD TRY TO FIND THE WAY TO REDUCE THE AIR POLLUTION GENERATED BY CARS, LOOKING FOR OTHERS LESS POLLUTING FUELS OR TROUGHT THE INVENTION OF HYBRID CARS AS SOON AS POSSIBLE.


otto cycle

Documents

conclusion otto cycle

otto principals motors

strokes exhaust

strokes intake

fuelair mixture

piston s

air pollution

exhaust valve camshaft