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Modern Automotive Technology

Modern Automotive Technology. by Russell Krick. Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois. PowerPoint for. Body. Made of sheet metal, plastic, or fiberglass parts Forms the passenger compartment Serves as an attractive covering for the chassis Chassis

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Modern Automotive Technology

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  1. Modern Automotive Technology by Russell Krick PublisherThe Goodheart-Willcox Co., Inc.Tinley Park, Illinois PowerPoint for

  2. 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.

  3. 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

  4. Unibody Construction Frame is an integral part of the body

  5. Body-on-Frame Construction

  6. Sedan Uses center body pillars, or “B” pillars, between the front and rear doors Has 4 doors

  7. Coupe 2 door car

  8. Convertible Uses a vinyl or cloth top that can be raised or lowered

  9. Hatchback Large rear door allows easy accesswhen hauling items

  10. Station Wagon Provides a large rear interior compartment

  11. Minivan Has a higher roofline for moreheadroom and cargo space

  12. Sport-utility Vehicle Provides the comfort of a passenger car, the interior space of a station wagon, and the durability of a truck

  13. Automobile Body Parts

  14. Engine Locations

  15. Vehicle Identification • Door Jam

  16. Vehicle Identification • Windshield

  17. Vehicle Identification • Under hood

  18. Cylinder Arrangement

  19. 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

  20. Overhead Cam Engine Camshaft is located in the top of the cylinder head

  21. 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

  22. Rotary Engine Operation

  23. Rotary Engine Animation http://www.animatedengines.com/wankel.shtml

  24. Bore and Stroke

  25. If an engine has a bore of 4” and a stroke of 3”, what is its piston displacement? piston (22) x 3.14 x 3displacement 4 x 3.14 x 3 37.68 cu. in. = = = Piston Displacement

  26. Engine Efficiency

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