engines how they work. a spark plug is used to ignite the fuel in an engine
TRANSCRIPT
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EnginesHow they work
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A spark plug is used to ignite the fuel in an engine
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Piston
Valves
Crankshaft
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THE FUEL GOES IN
SPARK IGNITES
THE EXPLOSION FORCES
THE PISTON DOWN
Engines produce power
RPMRevolutions per minute
TorqueThe energy produced on each cycle of the engine
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Fuel inEXHAUST OUT
4 - cycle engine
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PISTON CONFIGURATION
4 CYLINDER
4 cylinder 6 cylinder 8 cylinder
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BASIC ENGINE TYPES
• 2- STROKE
• 4- STROKE
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Engine Types
2- Stroke
4- Stroke
OIL & GAS MIX
OIL GAS
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2 -Stroke ENGINES
USED IN : Chain Saws Weed Eaters
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2 - Stroke Engines Oil & Gas mixed together
Notice There are no valves
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LAWN MOWERS
Use the right fuel for the engine your are running
LOOK AT GAS CAP
710 Fuel Type ?
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WARNING:
Never put gas only in a 2-Stroke engine.
THAT WOULDBE BAD NEWS!
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Two types of fuel
GASOLINE
DIESEL GAS
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Diesel engines burn
Diesel fuel
Gas engines burn
Gasoline for fuel
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GASOLINE ENGINES
Good for cars
Easier starting
DIESEL ENGINES
Good for long hauls , heavy trucks & machines
Difficult to start in cold weather
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Diesel fuel will jell up during cold weather. Makes for hard starting.
“Plug in heaters are used to keep the engine warm overnite ……..
BLANKET
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WHAT’S SO SPECIAL ABOUT A DIESEL ENGINE ?
Runs for long periods of time
More power
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VEHICLES USING DIESEL ENGINES
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Diesel Bus
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V-8 DIESEL ENGINE
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DIESEL TRAIN
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HEAVY EQUIPMENT
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Low octane High octane
Economy cars High horsepower
Gasoline Cars
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Octane describes the burn rate of the fuel
The higher the octane , the smoother the fuel will burn, however it will cost more.
87 Octane 91 Octane89 Octane
Econo
Fuel octane ratings
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Nascar engines
run on 117 high octane gas
Known as racing fuel
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Nitro- methane
Extremely
HIGH
OCTANE
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Dragster
Nitro-fuel
BURNING FUEL
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Ethanol: Made from corn
Methanol: Made from wood
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Indy-Cars
Use ethanol- fuel made from corn
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Indiana Corn
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One bushel of corn will make 3 gallons of ethanol fuel
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It will take 60 bushels of corn for an Indy-Car to go 500 miles.
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One semi will hold 1,000 bushels of corn
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Ethanol
E 10 10 % ethanol 90 % gas
E 85 85 % ethanol 15 % gas
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85 % Alcohol
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Will burn all mixtures of gas and alcohol
On board computer monitors the type of fuel being used ….. ECM
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½ Gas ½ Electric
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Bio - Fuels
Using grain like corn
and soybeans or vegetable
oils mixed with diesel fuel
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Fuel cells
Convert hydrogen gas to electricity
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McLaren P 1 .. Speed 240 MPHMade in England … basic production
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Supercar
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Economy
High performance
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TEST YOURKNOWLEDGE
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1. WHERE ARE 2-CYCLE ENGINES USED ?
A. LARGE TRUCKS
B. SMALL MACHINES
C. RACE CARS
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B. SMALL MACHINES
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2. WHAT ENGINE NEEDS TO HAVE OIL & GAS MIXED ?
A. 2- CYCLE ENGINE
B. 4- STROKE ENGINE
C. V- 8 ENGINE
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A. 2-CYCLE
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3. WHAT TYPE OF FUEL DOESA NASCAR ENGINE BURN ?
A. METHANOL
B. HIGH OCTANE GAS
C. DIESEL
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B. HIGH OCTANE GAS
Racing Fuel
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4. WHAT PART OF THE ENGINE PROVIDES THE FIRE
TO IGNITE THE FUEL ?
A. INTAKE VALVE
B. CARBURETOR
C. SPARK PLUG
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C. SPARK PLUG
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5. LARGE VEHICLES THAT RUN FOR LONG PERIODS OF TIME , USE WHAT KIND OF
FUEL ?
A. DIESEL
B. METHANOL
C. GASOLINE
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A. DIESEL
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6. WHAT TYPE OF FUEL DO INDY-CARS RUN ON ?
A. NITRO-METHANE
B. ETHANOL
C. DIESEL
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B. ETHANOL
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7. WHAT TYPE OF FUEL DOES A DRAGSTER USE ?
A. DIESEL
B. GASOLINE
C. NITRO-METHANE
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C. NITRO METHANE
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8. WHAT TYPE OF ENGINE WOULD BE USED IN THIS ?
A. 2- CYCLE
B. 4- STROKE
C. DIESEL
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A. 2- CYCLE
Oil and Gas
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9. MOST CARS ON THE ROAD TODAY USE WHAT KIND OF
ENGINE ?
A. 2- CYCLE
B. 4 - STROKE
C. DIESEL
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B. 4- STROKE
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10. HIGHER OCTANE FUELS DO WHAT ?
A. BURNS FASTER
B. BURNS WITHOUT EMISSIONS
C. BURNS SMOOTHER
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C. BURNS SMOOTHER
End