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Lesson. Using Multiple Cylinder Engines. Interest Approach. Name the ways that engines may be classified. Student Learning Objectives. Explain general maintenance guidelines associated with multiple cylinder engines Describe the concept of power as it relates to multiple cylinder engines

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Lesson

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  1. Lesson Using Multiple Cylinder Engines

  2. Interest Approach • Name the ways that engines may be classified.

  3. Student Learning Objectives • Explain general maintenance guidelines associated with multiple cylinder engines • Describe the concept of power as it relates to multiple cylinder engines • Discuss common maintenance practices associated with multiple cylinder engines • Describe the operating characteristics of a diesel engine

  4. Bleed Coolant hydrometer Diesel engine Drawbar power Engine horsepower Fuel injectors Horsepower Multiple cylinder engines Power Power-take off shaft PTO power Preventative maintenance Turbocharger Terms

  5. Multiple Cylinder Engines • Have 2, 3, 4, 5, 6, 8, or more cylinders. • Preventative maintenance – performing periodic practice to keep equipment in good working order • Preventative maintenance helps multiple cylinder engines perform well

  6. General Preventative Practices • Read the operator’s manual • Know the history of the equipment • Follow all manufacturer recommendations • Use quality materials • Keep accurate records • Use common sense • Use safety practices

  7. Power • The rate of performing work • Engine power is stated as horsepower

  8. Types of Power • Engine horsepower – rates engines based on their displacement and configuration • Horsepower – the force needed to life 33, 000 lbs one foot in one minute or 550 lbs one foot in one second • Drawbar power – is derived as machines are pushed or pulled by the engine as power is delivered to the drive wheels

  9. Horsepower

  10. Types of Power • PTO power – rotary power converted to hydraulic or electrical energy. • Power-take-off (PTO) shaft transfers power from the engine to the attached implement.

  11. PTO shaft& implement

  12. Maintenance practices • Maintaining the intake system • Maintaining the fuel system • Bleed – to remove air from the system • Maintaining the exhaust system • Maintaining the cooling system • Coolant hydrometer – determines the proportion of antifreeze to water

  13. Antifreeze chart

  14. Maintenance practices (continued) • Maintaining the ignition system • Maintaining the lubrication system • Maintaining the starting systems

  15. Diesel engine • An engine with a very high compression ration in which the air-fuel mixture is ignited by the heat of compression • Available in two-stroke or four-stroke engines

  16. Diesel engines have: • Fuel injectors – measure the correct amount of fuel for injection at he correct time • Turbocharger – a turbine-type air pump that is driven by the engine’s exhaust gasses

  17. Comparison between spark ignition & diesel cycle engines

  18. Review/Summary • What are some common preventative maintenance practices associated with multiple cylinder engines? • What is power? How does it apply to multiple cylinder engines?

  19. Review/Summary • What are common maintenance practices associated with multiple cylinder engines? • What are the characteristics of a diesel engine?

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