Auto - 4-Stroke vs 2-Stroke

New to Engines?

Students new to Engines should review yesterday's animations and enter (into Weebly) information about a 4-stroke Engine.
(Don't confuse yourself by looking at a 2-stroke engine.)

Terms and Definitions for Engines
Put the following terms and definitions into your Weebly. (You may copy-and-paste.)

        Basic 4-Stroke Principles (Login: nbstudent, nbstudent)

1. The five events of an internal combustion engine
2. Crankshaft
3. Cylinder
4. Piston
5. Intake Valve
6. Exhaust Valve
   
   4-Stroke Engine Cycle (Login: nbstudent, nbstudent)
7. BDC
8. TDC
9. Stroke
10. Intake Stroke
    
11. Compression Stroke
12. Ignition & Power Stroke
13. Exhaust Stroke
    
    4-Stroke Engine (Toyota Video - top video)
14. SOHC
15. DOHC
16. 4 cylinder "Inline Design"
17. 6 or 8 cylinder "V Design" (so V6 or V8)

Not New to Engines?

Students who are not new to Engines should first answer the 4-Stroke terms-and-definitions on this page.

Then, answer the 2-Stroke Engine terms below.

Terms and Definitions for 2-Stroke Engines
Put the following terms and definitions into your Weebly. (You may copy-and-paste.)

        Basic 2-Stroke Principles

1. Does a 2-Stroke engine have the same 5 events as a 4-Stroke engine?
2. Complete the sentence: "In a 2-stroke engine the inlet and exhaust ports are open and closed by...".
   
   2-Stroke Engine Power Stroke
3. In one revolution of a 2-stroke engine, how many strokes does the piston do?
4. Of the strokes of a 2-stroke engine, how many actually produce power?