Ducati Monster Forum

Moto Board => General Monster Forum => Topic started by: Capo on December 10, 2008, 01:35:03 PM

Title: Interesting Engine Design
Post by: Capo on December 10, 2008, 01:35:03 PM
http://uk.youtube.com/watch?v=uClePL7EdfE (http://uk.youtube.com/watch?v=uClePL7EdfE)

http://www.asphaltandrubber.com/bikes/polish-jj2s-x4-motorcycle/#more-721 (http://www.asphaltandrubber.com/bikes/polish-jj2s-x4-motorcycle/#more-721)
Title: Re: Interesting Engine Design
Post by: Slide Panda on December 10, 2008, 01:53:06 PM
Steel trellis frame w/ the engine as a stressed member... now that is new!

Jokes aside, this should be interesting.  a 500cc 2-smoker could put down a lot of power and weigh very little.  The X pattern's interesting. 
Title: Re: Interesting Engine Design
Post by: superjohn on December 10, 2008, 03:23:33 PM
I don't get it? The crankshaft appears to move around, how does that work?
Title: Re: Interesting Engine Design
Post by: Capo on December 10, 2008, 03:28:28 PM
Quote from: superjohn on December 10, 2008, 03:23:33 PM
I don't get it? The crankshaft appears to move around, how does that work?

It's a sleeve valve two stroke
Title: Re: Interesting Engine Design
Post by: superjohn on December 10, 2008, 03:29:43 PM
Quote from: Capo on December 10, 2008, 03:28:28 PM
It's a sleeve valve two stroke

So it's sort of like old Aircraft engines?
Title: Re: Interesting Engine Design
Post by: Oldfisti on December 10, 2008, 03:41:21 PM
Me likey!  [thumbsup]   Ever see a Quasiturbine?

(http://static.howstuffworks.com/gif/quasiturbine-6.gif)     (http://www.ecogeek.org/images/stories/quasiturbine3.gif)
Title: Re: Interesting Engine Design
Post by: superjohn on December 10, 2008, 03:54:56 PM
Quote from: alfisti on December 10, 2008, 03:41:21 PM
Me likey!  [thumbsup]   Ever see a Quasiturbine?


Neat, kind of a take on a Wankel.
Title: Re: Interesting Engine Design
Post by: Slide Panda on December 10, 2008, 04:12:32 PM
Quote from: superjohn on December 10, 2008, 03:29:43 PM
So it's sort of like old Aircraft engines?

Sorta.  You're probably thinking of a rotary or radial engine (look similar when off - but very different in operation).  But the ones on planes were 4 strokes though sleeve valves were used in them

Radial engine cut away
(http://upload.wikimedia.org/wikipedia/commons/a/ab/Radial_engine.gif)
Title: Re: Interesting Engine Design
Post by: IRISH on December 10, 2008, 06:51:18 PM
True that, radial engines that go up to to like 10 cylinders
Title: Re: Interesting Engine Design
Post by: Sleeper_I on December 10, 2008, 11:23:17 PM
Quote from: yuu on December 10, 2008, 04:12:32 PM
Radial engine cut away
(http://upload.wikimedia.org/wikipedia/commons/a/ab/Radial_engine.gif)

Oh my, that thing is mesmerizing!
Title: Re: Interesting Engine Design
Post by: RichD on December 11, 2008, 02:22:56 AM
Quote from: IRISH on December 10, 2008, 06:51:18 PM
True that, radial engines that go up to to like 10 cylinders

Older Russian warships used radials for power that had over a hundred cylinders!
Title: Re: Interesting Engine Design
Post by: Raux on December 11, 2008, 05:13:09 AM
Quote from: RichD on December 11, 2008, 02:22:56 AM
Older Russian warships used radials for power that had over a hundred cylinders!


100 cylinders but i am certain in a few banks. you couldn't fit too many in a single bank. remember the F4U Corsair or the Baa Baa Black Sheep?  It had 18 cylinders and it was packed.
Title: Re: Interesting Engine Design
Post by: Slide Panda on December 11, 2008, 08:19:16 AM
Quote from: Raux on December 11, 2008, 05:13:09 AM
100 cylinders but i am certain in a few banks. you couldn't fit too many in a single bank. remember the F4U Corsair or the Baa Baa Black Sheep?  It had 18 cylinders and it was packed.

Yeah lots of banks.

The Corsairs 'Double Wasp' had 18 cylinders
http://www.aviation-history.com/vought/f4u.html (http://www.aviation-history.com/vought/f4u.html)

Lots of neat info on this site:
http://www.aviation-history.com/index-aircraft.htm (http://www.aviation-history.com/index-aircraft.htm)
Title: Re: Interesting Engine Design
Post by: hypurone on December 11, 2008, 01:31:15 PM
Quote from: yuu on December 10, 2008, 04:12:32 PM
Sorta.  You're probably thinking of a rotary or radial engine (look similar when off - but very different in operation).  But the ones on planes were 4 strokes though sleeve valves were used in them


Ahh, the rotary! The mighty little engine that could:
http://www.youtube.com/watch?v=Gr8nOeHOkNY (http://www.youtube.com/watch?v=Gr8nOeHOkNY)

powerful, smooth, seamless, sexy! It's why I still have my twin turbo 94 RX7 after 14 years, well, that and it is drop dead gorgeous!  ;D
Title: Re: Interesting Engine Design
Post by: Slide Panda on December 11, 2008, 02:22:42 PM
Quote from: hypurone on December 11, 2008, 01:31:15 PM
powerful, smooth, seamless, sexy! It's why I still have my twin turbo 94 RX7 after 14 years, well, that and it is drop dead gorgeous!  ;D

Actually - I was talking about the original rotary - as opposed to a Wakle.  The old school rotarys - the whole f'ing engine turned. Think WWI, not Mazda

edit - found a video.  Kinda scary buggers

http://www.youtube.com/v/P_-HhEfH1XQ&hl=en&fs=1 (http://www.youtube.com/v/P_-HhEfH1XQ&hl=en&fs=1)
Title: Re: Interesting Engine Design
Post by: MendoDave on December 11, 2008, 02:44:16 PM
Quote from: yuu on December 11, 2008, 02:22:42 PM
Actually - I was talking about the original rotary - as opposed to a Wakle.  The old school rotarys - the whole f'ing engine turned. Think WWI, not Mazda

edit - found a video.  Kinda scary buggers



Yea No throttle. when they came in for a landing those guys had to turn off and on the ignition. If the ignition was off a little too long and the engine died.... :'(
Title: Re: Interesting Engine Design
Post by: Slide Panda on December 11, 2008, 02:53:21 PM
Quote from: MendoDave on December 11, 2008, 02:44:16 PM
Yea No throttle. when they came in for a landing those guys had to turn off and on the ignition. If the ignition was off a little too long and the engine died.... :'(
Yeah - hence the brrrr... brrr... bbb brrrrr brrr noise those planes when making a landing.  That's the sound of the poor pilot intermittently shutting the engine off to reduce the speed.  Can imagine spinning sevral hundred pounds of metal made for a fast direction change...
Title: Re: Interesting Engine Design
Post by: A.duc.H.duc. on December 11, 2008, 02:54:57 PM
That's cool, I dig it.