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Post by wheelbender6 on Sept 10, 2015 18:42:58 GMT -5
Dan Gurney was the last guy to win a Formula 1 race in a car he constructed himself (only 3 racers have ever done it). But I digress. Gurney's shop had designed a "square four" engine. Basically, a pair of twins, side by side. it reduces vibration and emissions dramatically and can fit in spaces too small for an in-line four or v-four. He designed it years ago but has tweaked it to fit our current needs. More pictures at the link. He built some good lookin race cars too. "All American Racing Forever!" www.gizmag.com/dan-gurney-moment-cancelling-motorcycle-engine-patent/39344/   |
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Post by flyangler on Sept 10, 2015 19:33:27 GMT -5
Very interesting, I'd like to see him build it.
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Post by horace on Sept 10, 2015 19:46:06 GMT -5
I must aprove!!! only because a Mercury Cougar is pictured.... Otherwise, any engine could result in a Gurney  ( sorry bad pun ) Very Neat article though!!!!!!!!!! |
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Post by wheelbender6 on Sept 11, 2015 19:02:48 GMT -5
"I must aprove!!!
only because a Mercury Cougar is pictured...."
If you can find a pre-1975 Cougar in good shape, you'd better buy it. They are more scarce than Studebaker pickup trucks.
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Post by horace on Sept 12, 2015 15:32:41 GMT -5
HA HA!!! As A child I saw my first Stud Baker Truck ---- That's how I pronounced the Studebaker truck while learning to read--- My father still teases me EVERY time we see a Stud Baker........... ( inside joke ) I own a Merc. Cougar BTW.... It's a 92 XR7.... Not quite the same thing but, considered a "classic" next year..... T-birds and Cougars from the  's are basicly the same car--- Your opinion may very on what looks better. As for the Gurney Engine, Kudos for engeneering design-- Looks a lot like current in line engines-- I find it Amazing with all the new Technology out there, No REAL innovation has been made yet. No real creative ideas except how to copy other ideas more efficiently........ |
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Post by crawford on Sept 12, 2015 17:50:05 GMT -5
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Post by cyborg on Sept 12, 2015 19:53:54 GMT -5
HA HA!!! As A child I saw my first Stud Baker Truck ---- That's how I pronounced the Studebaker truck while learning to read--- My father still teases me EVERY time we see a Stud Baker........... ( inside joke ) I own a Merc. Cougar BTW.... It's a 92 XR7.... Not quite the same thing but, considered a "classic" next year..... T-birds and Cougars from the 's are basicly the same car--- Your opinion may very on what looks better. As for the Gurney Engine, Kudos for engeneering design-- Looks a lot like current in line engines-- I find it Amazing with all the new Technology out there, No REAL innovation has been made yet. No real creative ideas except how to copy other ideas more efficiently........ ,,,Go back and read the article again,,,the intake ports alone are very innovative and create more power just in it's shape,,, gurney is making more power with the same size engine,,,with self canceling vibration to boot,,,,lots of innovation in that engine,,, |
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Post by cyborg on Sept 12, 2015 20:13:39 GMT -5
Also if you look at the drawings ,,,there are no valve springs,,,,20-25% of a conventional engines power goes to just running its valve train and that's where a bunch of heat is generated too,,,so I think there's a bunch of innovation going on ,,,
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Post by horace on Sept 13, 2015 14:41:34 GMT -5
Indeed, Very Cool Technology Design
Just a better engineered internal combustion engine though---
Hear me out, V-tech is basicly just a complicated valve lash setting..... ( over simplifying I know )
What I mean by Innovation is,
Instead of replacing a Carb with EFI, something like a Jet engine needs to be invented.......
The Jet/Turbine or even Rotary, was the most recent Innovative way to make an engine.....
I'm not smart enough to design my own but, In the year 2015 will still have the basic internal combustion engine doing things more efficiently, Not a Brand New Power Plant ( so to speak ), Just a redesign of what already exists...
Heck, Even Electric motors are just more efficient versions of what was created 150 years ago.......
If someone was to come up with a whole new platform, It could be a Billion dollar idea.......
YES, This is a VERY cool Internal Combustion Engine Design, ( No doubt about that ) How about a Totally new Idea all together? I don't mean fuel but, Instead a different propulsion device entirely.......
Like I said this is a VERY COOL DESIGN!!!!!! I hope to see it in the market.....
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Post by beenriding on Sept 13, 2015 14:52:33 GMT -5
Thanks for posting this, interesting.... Even more outstanding is that Mr Gurney is  years old and engineering a new internal combustion engine. |
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Post by wheelbender6 on Sept 13, 2015 15:00:23 GMT -5
"there are no valve springs"
-What is holding the valves closed? Are they desmodromic, like a Ducati?
-I think the biggest advantage of Gurney's four square engine is compactness. You could possibly fit this 1800cc engine into the same space required for a Suzuki 650cc single.
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Post by horace on Sept 13, 2015 15:25:51 GMT -5
The intake port has a "double tapered" cross section, as its diameter gets thinner in the middle section, forcing the flow to accelerate, before gradually expanding to meet the exact valve seat size. Playing around with small variations in intake port diameter and inclination, as well as valve seat angles, results in what Gurney calls the "optimized taper configuration" and some astonishing output results. The first prototype engine to be built will be the liquid-cooled tandem twin (pictured above), with a displacement of 110 cubic inches (1,800 cc), two overhead camshafts and four valve heads. According to the simulations that Gurney has run, the MC4S engine with a standard straight intake port will produce 141 hp (105 kW), while the output of the very same engine with the special porting system skyrocketed to 262 hp (195.4 kW); that’d be an  percent increase, from a naturally aspirated engine burning normal pump fuel. According to the patent text, this is simply the result of delivering the air deeply and efficiently into the bore to enable a more efficient combustion process. Just sayn...... |
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Post by wheelbender6 on Sept 13, 2015 19:37:17 GMT -5
I knew this engine config was familiar. Aerial produced a square four motorcycle engine in the fifties. However, it was a 1000cc, air cooled engine.   |
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Post by scooter on Sept 13, 2015 19:56:41 GMT -5
Indeed, Very Cool Technology Design Just a better engineered internal combustion engine though--- Hear me out, V-tech is basicly just a complicated valve lash setting..... ( over simplifying I know ) What I mean by Innovation is, Instead of replacing a Carb with EFI, something like a Jet engine needs to be invented....... The Jet/Turbine or even Rotary, was the most recent Innovative way to make an engine..... I'm not smart enough to design my own but, In the year 2015 will still have the basic internal combustion engine doing things more efficiently, Not a Brand New Power Plant ( so to speak ), Just a redesign of what already exists... Heck, Even Electric motors are just more efficient versions of what was created 150 years ago....... If someone was to come up with a whole new platform, It could be a Billion dollar idea....... YES, This is a VERY cool Internal Combustion Engine Design, ( No doubt about that ) How about a Totally new Idea all together? I don't mean fuel but, Instead a different propulsion device entirely....... Like I said this is a VERY COOL DESIGN!!!!!! I hope to see it in the market..... I'm sure there are people out there who have designed engines, but they can't or don't know how to get them built. They mostly all have one thing in common, in that they use some energy to make their parts move, and what's left over is the output. You could try it. Imagine a fuel source like gas, and what you could do with the power of its combustion, to push a piston, turn a turbine, or something new. There's a type of clock I read about that uses ambient temperature to power it. As the temperature rises and falls each day, a piston or something is used to harness that difference and wind the clock. It's called an Atmos clock. www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0CB4QFjAAahUKEwjI0eD7pvXHAhXGuB4KHV1gAlo&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FAtmos_clock&usg=AFQjCNFiROXkVEXRTLBafsXHyque2QtLRQ&sig2=TceQTTtqo59yFgkJujJqpg&bvm=bv.102537793,d.dmo I knew a fellow some 20+ years ago that was developing an engine similar to a rotary engine. He was pretty darned old back then. I assume he's gone now. I never found out if he got his engine working. I had an interesting thing happen when I was cleaning my fish tank once. Water would siphon out of the tank into a smaller tank, and when the water in the smaller tank drained into the sump, a floating ball I put in there would cover the outlet. Then when the water got high enough, the ball would pop off of the outlet tube until the tank emptied again. I was fascinated with it. It was an engine of sorts, having a definite cycle, and surely could have been attached to a crank if one so desired. I can't remember why I put the ball in there, but I did and that was the result, a water powered reciprocating engine. Making a new kind of engine would be fun. We should have a discussion about the possible ways it could be done. Speaking of cool ideas, would you guys check out my post here: not getting fire? try a new kind of spark
I posted it the other day and I don't think anyone has found it.
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Post by horace on Dec 5, 2015 16:50:07 GMT -5
It's been a while,
I was thinking of starting a new thread but, this is a call back to "new engine design"
Not real sure this is possible but have a look at this design......
The MYT engine.... Seems like a neat idea.......
A visual demonstration of the idea-----
A working model...
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's are basicly the same car--- Your opinion may very on what looks better.
years old and engineering a new internal combustion engine. 
percent increase, from a naturally aspirated engine burning normal pump fuel. According to the patent text, this is simply the result of delivering the air deeply and efficiently into the bore to enable a more efficient combustion process.
