Diesel engines - how they work

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Across
  1. 4. Device that controls the flow of fluid or air by opening and closing
  2. 7. The more _________ an engine has, the smoother it will operate
  3. 9. Steam engines are ______ combustion engines
  4. 10. Causes the movement of the piston during the exhaust stroke
  5. 11. Position of inlet and exhaust valves during the compression stroke
  6. 12. Pump that delivers fuel at high pressure to the combustion chambers (4,8)
  7. 15. Control opening and closing of valves
  8. 17. Part of the slider-crank mechanism, joins the piston to the crankshaft (10,3)
  9. 19. Supports the slider-crank mechanism (6,5)
Down
  1. 1. When the piston goes down, the inlet valve opens and air enters, the engine "breathes" (6,5)
  2. 2. One of the four elements of the slider-crank mechanism, moves up and down in the cylinder during combustion
  3. 3. Helps smooth out power
  4. 5. What happens when fuel is injected in during the power stroke
  5. 6. Houses the valves (8,4)
  6. 8. Fires and ignites the fuel mixture in petrol engines (5,4)
  7. 13. Diesel engines are ______ combustion engines
  8. 14. The more you compress air, the ______ it gets
  9. 15. Also help smooth out power
  10. 16. During the ____ stroke, chemical energy is converted to mechanical energy
  11. 18. Linear motion at the piston is converted to ______ motion at the crank
  12. 20. Diesel engines are more _________ than steam engines