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Old 02-19-2010, 02:15 PM   #1
GAU-8
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crossplane crankshaft. whats special?

here is what i cant figure out..

i thought ALL engines since the start of ..well since engines with pistons surfaced, had the pistons 90 degrees apart from each other. right?

RIGHT?

i mean all computer animations (i thought)show pistons at 90 degree intervals..so what makes the "crossplane" different? I dont remember my 67' volks beetle having something weird when i rebuilt it (maybe i didnt pay attention)


mean to tell me i had an ingenious engine firing order in my head for 30 years....and i thought it was commonplace




maybe they realized the "big bang" motor design was starting to suck..and wanted to get back to old tech, but didnt wasnt to admit it, and came up with something new?????

i thought a generic motor was spaced like that.
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Old 02-19-2010, 02:18 PM   #2
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Old 02-19-2010, 02:27 PM   #3
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Wow, that about sums it up.
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Old 02-19-2010, 02:53 PM   #4
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but thats how i THOUGHT (modoern engines) it fired normally. ah well. (for some reason i just assumed this..thinking that 1,2,3,4, firing allready caused problems years ago (??) meh.

ok well...onto my new engine power delivery :P


next up. the "SEE-SAW" engine.

two pistons on a see-saw rather than a traditional cranckshaft, thus negating rotational mass from the pistons. 2 sets of seesaws side by side. end to end (OR maybe place side to side, for a "square" firing order.)

"its not an inline 4, its not a v4..but a square 4"

i need a patent officer to live with me. or just monitor my brain activity.

Last edited by GAU-8; 02-19-2010 at 02:57 PM.
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Old 02-19-2010, 03:23 PM   #5
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Thats called a rotary engine.
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Old 02-19-2010, 03:39 PM   #6
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Old 02-19-2010, 03:55 PM   #7
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Quote:
Originally Posted by GAU-8 View Post
here is what i cant figure out..

i thought ALL engines since the start of ..well since engines with pistons surfaced, had the pistons 90 degrees apart from each other. right?

RIGHT?
No. Most four-stroke, four-cylinder engines have the pistons 180 degrees apart. A piston in a four-stroke engine fires once every two full revolutions of the crankshaft - that's 720 degrees revolution. To evenly spread firings across that 720-degrees, it's set up for 720/4 = 180 degrees per firing. The R1's crankshaft doesn't have even spacing between firings - at some points they're bunched up, at others they're more spread out.
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Old 02-19-2010, 06:05 PM   #8
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well that just sucks, what i thought was "everyday" engine for the past 30 years..was actually yammys new engine. :(

i thought "whats so special about that?" lol

allright , well thanks for clarifying.
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Old 02-19-2010, 06:13 PM   #9
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Now to real talk.
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Old 02-19-2010, 07:11 PM   #10
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Quote:
Originally Posted by GAU-8 View Post
but thats how i THOUGHT (modoern engines) it fired normally. ah well. (for some reason i just assumed this..thinking that 1,2,3,4, firing allready caused problems years ago (??) meh.

ok well...onto my new engine power delivery :P


next up. the "SEE-SAW" engine.

two pistons on a see-saw rather than a traditional cranckshaft, thus negating rotational mass from the pistons. 2 sets of seesaws side by side. end to end (OR maybe place side to side, for a "square" firing order.)

"its not an inline 4, its not a v4..but a square 4"

i need a patent officer to live with me. or just monitor my brain activity.

Whats your plan for converting the see-saw action into rotary motion to drive the wheel/s?
Whatever it is it is unlikely to be more efficient that a crankshaft.
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Old 02-19-2010, 07:34 PM   #11
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Quote:
Originally Posted by ducoop View Post
Thats called a rotary engine.
since when do rotary engines have pistons?
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Old 02-19-2010, 07:36 PM   #12
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Quote:
Originally Posted by GAU-8 View Post
but thats how i THOUGHT (modoern engines) it fired normally. ah well. (for some reason i just assumed this..thinking that 1,2,3,4, firing allready caused problems years ago (??) meh.

ok well...onto my new engine power delivery :P


next up. the "SEE-SAW" engine.

two pistons on a see-saw rather than a traditional cranckshaft, thus negating rotational mass from the pistons. 2 sets of seesaws side by side. end to end (OR maybe place side to side, for a "square" firing order.)

"its not an inline 4, its not a v4..but a square 4"

i need a patent officer to live with me. or just monitor my brain activity.
kinda sorta, not really, but closest comparison I have to that is the horizontally opposed WRX motor.
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Old 02-19-2010, 09:05 PM   #13
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Quote:
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Whats your plan for converting the see-saw action into rotary motion to drive the wheel/s?
Whatever it is it is unlikely to be more efficient that a crankshaft.
TRUE...but thats something to work out in the future. im just thinking new ideas that are way ahead of ..well the game.

my thinking is like how the japanese think "develope the technology FIRST, then find a use for it."

rather than have a need, and develope around it.

typically im about 10 years ahead, but the technology to make what i think of, isnt up to par yet for manufacturing or if it IS, people think, "whats the point of THAT!?" but later on, it shows up :(


I have a bunch of drawing and designs from the late 80's 90's that have dates on em (not like it matters though) from bike/helmet designs, video game concepts that are similar to those out today..etc etc.. clothing. just too "out there" for today..but its getting closer.

anyways back on track.. probably right, about the cams (either being in effect somewhere (thus negating the need for the engine idea, OR the idea to replace it would have less efficiency. so in short, I agree with what you are saying though.
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Old 02-19-2010, 09:15 PM   #14
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Thats called a rotary engine.

Not quite.

rotary engine intro
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Old 02-19-2010, 09:19 PM   #15
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Quote:
Originally Posted by GAU-8 View Post
but thats how i THOUGHT (modoern engines) it fired normally. ah well. (for some reason i just assumed this..thinking that 1,2,3,4, firing allready caused problems years ago (??) meh.

ok well...onto my new engine power delivery :P


next up. the "SEE-SAW" engine.

two pistons on a see-saw rather than a traditional cranckshaft, thus negating rotational mass from the pistons. 2 sets of seesaws side by side. end to end (OR maybe place side to side, for a "square" firing order.)

"its not an inline 4, its not a v4..but a square 4"

i need a patent officer to live with me. or just monitor my brain activity.
That's a boxer...

2003 Porsche Boxster Engine Cutaway
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Old 02-19-2010, 09:24 PM   #16
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I heard an 09r1 drive by me twice today, it had an exhaust and I must say holy , I know what my next bike is, that thing sounded sooo sick. YouTube vid cannot replicate the sound
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Old 02-19-2010, 09:26 PM   #17
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Quote:
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That's a boxer...

2003 Porsche Boxster Engine Cutaway
almost same design as the WRX motor, just set at an angle.
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Old 02-19-2010, 09:33 PM   #18
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Quote:
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almost same design as the WRX motor, just set at an angle.
Isn't the whole point of the boxer engine that the pistons aren't at an angle? 180 deg opposed and all.
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Old 02-19-2010, 09:38 PM   #19
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Quote:
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Isn't the whole point of the boxer engine that the pistons aren't at an angle? 180 deg opposed and all.
I said set at an angle. WRX motors are also 180 deg opposed just perpendicular/parallel to the tranny.
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Old 02-19-2010, 10:03 PM   #20
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I said set at an angle. WRX motors are also 180 deg opposed just perpendicular/parallel to the tranny.
Ah, OK
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