Drag Racing 1/4 Mile times 0-60 Dyno Fast Cars Muscle Cars

4 Stroke Engine

Edit: I know Im spinning it backwards. There was an arrow that misled me when I took this video. This is an example of a 4 stroke(Otto Cycle) Heat Engine. Visible is the cylinder with surrounding water passages(cooling system routed to radiator) Valve train, which is control by the two cams attached to the smaller gears, and the crankshaft which is attached to the larger gear and is connected to the piston through connecting rods. If one pauses at the end, the Otto Cycle chalkboard work is visible, where the isothermal and adiabatic processes required to produce the net work are expressed. (Taken from Giancoli Ch. 20) The cycle is as such: a)the gasoline-air mixture flows into the cylinder as the piston moves down. b)the piston moves upward and compresses the gas c)the brief instant when firing of the spark plugignites the highly compressed gasoline-air mixture raising it to a high temperature d)the gases, now at high temperature expand against the piston(in the power stroke) e) the burned gases are pushed out to the Exhaust pipe; when the piston reaches to the top, the Exhaust valve opens, and the whole cycle repeats. a, b, d, and e are the four strokes of the cycle. There is a minor discrepancy in the mechanics of this particular demo; it's cranked the wrong way.


 


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I know it has been a while but better late than never. I recently had a conversation with someone who wanted to know why octane ratings were important and what they meant, I thought this would make a perfect video for ETCG and here we are. So in this video we go over the 4 parts of the 4 stroke cycle in a gasoline engine and how it is effected by octane. I like this video because it is a window into the direction I see these videos going in the future, more dynamic and more thought out. I hope you enjoy it and find it informative. Special thanks to Ford Motor Company for the use of their animation in this video. I did add some stuff of my own by the way, thanks guys. --- Click below and Stay Dirty Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://www.ericthecarguy.com/forum/default.aspx Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy --- BTW Keep checking back with EricTheCarGuy.com, in the not too distant future I will be updating the site and making more in dept videos available for purchase. See my blog for details. http://ericthecarguy.blogspot.com/ As always thanks for watching, be safe, and stay dirty. ETCG





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