4 piston with 2 cylinder engine......sweet!
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mildly retarded
SuperBike
Joined: Mar 2008
Posts: 1,278
From: Denver, CO
4 piston with 2 cylinder engine......sweet!
Out of my mind, back in 5
MotoGP
Joined: Nov 2006
Posts: 6,109
From: Skurup, Sweden
Well, considering that there apparently are opposing equal forces from the dual pistons on the camshaft at all times, folding it into a V shaped engine block should be possible... Will probably look a bit odd, but should reduce width... It might actually be possible to put the two halves of that engine side by side? Making a very narrow engine instead...
Last edited by Tweety; Mar 29, 2011 at 10:36 AM.
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MotoGP
Joined: Mar 2007
Posts: 3,132
From: Phoenix, AZ
yay, 1907 technology! Opposed-piston engine - Wikipedia, the free encyclopedia
I keep seeing these pop up, they have their own issues, either two cranks, or really long connecting rods for the "far" pistons, both of which increase rotating mass and don't work well for higher RPMs.
It's not like the "force" that is held in by a normal head is lost.
I keep seeing these pop up, they have their own issues, either two cranks, or really long connecting rods for the "far" pistons, both of which increase rotating mass and don't work well for higher RPMs.
It's not like the "force" that is held in by a normal head is lost.
Senior Member
MotoGP
Joined: Mar 2007
Posts: 3,132
From: Phoenix, AZ
Out of my mind, back in 5
MotoGP
Joined: Nov 2006
Posts: 6,109
From: Skurup, Sweden
yay, 1907 technology! Opposed-piston engine - Wikipedia, the free encyclopedia
I keep seeing these pop up, they have their own issues, either two cranks, or really long connecting rods for the "far" pistons, both of which increase rotating mass and don't work well for higher RPMs.
It's not like the "force" that is held in by a normal head is lost.
I keep seeing these pop up, they have their own issues, either two cranks, or really long connecting rods for the "far" pistons, both of which increase rotating mass and don't work well for higher RPMs.
It's not like the "force" that is held in by a normal head is lost.
Yeah, it's not that good for high RPM's but the proposed use in the link is for trucks and similar, so RPM's isn't an issue... Could be for bikes through...
Senior Member
MotoGP
Joined: Mar 2007
Posts: 3,132
From: Phoenix, AZ
Well, considering that the "modern" 4 stroke engine has it's roots in 1861, it's actually to be considered "new" and "hightech"...
Yeah, it's not that good for high RPM's but the proposed use in the link is for trucks and similar, so RPM's isn't an issue... Could be for bikes through...
Yeah, it's not that good for high RPM's but the proposed use in the link is for trucks and similar, so RPM's isn't an issue... Could be for bikes through...
Oddly enough the most efficient engine made is a 2 stroke diesel. (bigger than most houses) Most powerful diesel engine in the world Over 50% of the fuel burned gets turned into motion.
Simpler is often better.
Last edited by lazn; Mar 30, 2011 at 09:06 AM.
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Joined: Mar 2011
Posts: 238
yay, 1907 technology! Opposed-piston engine - Wikipedia, the free encyclopedia
I keep seeing these pop up, they have their own issues, either two cranks, or really long connecting rods for the "far" pistons, both of which increase rotating mass and don't work well for higher RPMs.
It's not like the "force" that is held in by a normal head is lost.
I keep seeing these pop up, they have their own issues, either two cranks, or really long connecting rods for the "far" pistons, both of which increase rotating mass and don't work well for higher RPMs.
It's not like the "force" that is held in by a normal head is lost.
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