PowerPoint for

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PowerPoint for
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Body

• Made of sheet metal, plastic, or fiberglass parts
• Forms the passenger compartment
• Serves as an attractive covering for the chassis
• Chassis
• includes the engine, suspension, steering,
  brakes, wheels, tires, etc.

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Frame

• Strong metal structure that supports various
  vehicle components
• Body-over-frame construction
• body bolts on to the frame
• Unitized (unibody) construction
• inner body sections support the engine,
  suspension, and other major assemblies

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Unibody Construction

• Frame is an integral part of the body

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Body-on-Frame Construction
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Sedan

• Uses center body pillars, or B pillars, between
  the front and rear doors
• Has 4 doors

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Coupe
2 door car
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Convertible

• Uses a vinyl or cloth top that can be raised or
  lowered

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Hatchback

• Large rear door allows easy accesswhen hauling
  items

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Station Wagon

• Provides a large rear interior compartment

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Minivan

• Has a higher roofline for moreheadroom and cargo
  space

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Sport-utility Vehicle

• Provides the comfort of a passenger car, the
  interior space of a station wagon, and the
  durability of a truck

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Automobile Body Parts
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Engine Locations
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Vehicle Identification

• Door Jam

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Vehicle Identification

• Windshield

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Vehicle Identification

• Under hood

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Cylinder Arrangement
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Number of Cylinders

• Most car and truck engines have either 4, 6, or 8
  cylinders
• Some may have 3, 5, 10, 12, or 16 cylinders
• Engine power and smoothness are enhanced by using
  more cylinders

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Overhead Cam Engine

• Camshaft is located in the top of the cylinder
  head

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Overhead Cam Engine

• OHC engines may use one or two camshafts
• Single overhead cam (SOHC) engine
• uses only one camshaft per cylinder head
• Double overhead cam (DOHC) engine
• uses two camshafts per cylinder head
• one cam operates the intake valves, while the
  other cam operates the exhaust valves

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Rotary Engine Operation
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Rotary Engine Animation

• http//www.animatedengines.com/wankel.shtml

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Bore and Stroke
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Piston Displacement

• If an engine has a bore of 4 and a stroke of 3,
  what is its piston displacement?

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Engine Efficiency