Clever Anumate BMW Engine

[pickersgill1]

Some may have already viewed this before, I thought it was good and share it with others who have not seen it.

 

http://www.animatedpiston.com/BMW.htm

[T__]

John, yes that is a nice animation… Unfortunately it isn’t an Oil Head that is an Air Head..

 

Still a nice animation just wanted to make sure it wasn’t confused with what the current Oil Head uses..

 

Twisty

 

[pickersgill1]

Ooopps

[effexer1]

This is very good. Note the cam shaft inside the block and pushrods, this is the air head design. It will make a nice screen saver! Thanks!

[10ovr]

I clicked on that link,,Then went down to the bottom of the page,,Clicked on Animation,,Watched the film ,, Delivery,,,Very Kool flick,,Though of Ken H for some risen,

[der Wanderer]

Nice graphics

Now, I was not aware of that "wasted spark" thing, as indeed represented on the graphics... Would someone please explain?

[SageRider]

Wasted spark means both cylinders spark whenever approaching TDC. The spark on the compression stroke is useful.

The spark on the exhaust stroke is wasted.

[der Wanderer]

Yes I can see that

 

But why??? Is it because it is simpler to get both to spark at the same time (common wiring)?

[smiller]

But why??? Is it because it is simpler to get both to spark at the same time (common wiring)?

Yes, simpler/cheaper. No real downside except for a little additional wear on the plugs.

[der Wanderer]

Should have thought of cheaper

Thanks!