Mazdas Original forgotten 16B motor
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Joined: Jul 2004
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From: Oregon
Mazdas Original forgotten 16B motor
OBEY YOUR MAZDA
Joined: Oct 2002
Posts: 3,060
Likes: 2
From: Denmark
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OBEY YOUR MAZDA
Joined: Oct 2002
Posts: 3,060
Likes: 2
From: Denmark
OK i'm no pro cad designer, so here's a sketch in MS-Paint
Basicly it has the same port configuration of a S4 NA 6-port engine, side intake ports and peripheral exhaust ports, twin spark configuration as we all know it today. By the look of the pictures it doesnt look to be much larger, if at all, than a regular 13B or 12A.
The valve for the Aux. port system is in the intake, its actually just a vaccum controlled valve which closes off the shorter intake ports for the aux. ports.
It's pretty obvious that Mazda engineers was influenced by this little monster when designing the 6-port NA motor for the FC.
The dead link pics in my previous post are just display stand pics from what looks like a mazda museum. nothing special.
Hope this helps.
Kim - Rotary Powered Motorsports
Basicly it has the same port configuration of a S4 NA 6-port engine, side intake ports and peripheral exhaust ports, twin spark configuration as we all know it today. By the look of the pictures it doesnt look to be much larger, if at all, than a regular 13B or 12A.
The valve for the Aux. port system is in the intake, its actually just a vaccum controlled valve which closes off the shorter intake ports for the aux. ports.
It's pretty obvious that Mazda engineers was influenced by this little monster when designing the 6-port NA motor for the FC.
The dead link pics in my previous post are just display stand pics from what looks like a mazda museum. nothing special.
Hope this helps.
Kim - Rotary Powered Motorsports
I found a pic of an earlier design that has 6 sides, but it's in a PDF format and I can't pull out individual pics off the page. For those that don't know, the rotary was originally designed as an airpump/supercharger, for use on a piston engine. Funny things happened when fuel and spark was added though. The rotary reved smoother, faster and higher than the piston engines did.
Soft & Wooly
Joined: Jan 2007
Posts: 291
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From: Lakewood, CO (formerly Seattle)
Kim's pic is a good example of what I was talking about. Imagine the funny square rotor turns clockwise. Air comes in through the port right where the "wankelator" valve is. Then the rotor turns to the right and you have an intake stroke until the port closes. It keeps rotating right and you have a compression stroke centered over the indentation between the top lobe of the housing and the bottom right lobe. Then it fires and you start an expansion stroke... but as soon as you do that you uncover the bottom right intake port! Oops!
That is what I mean about the cycles not lining up with the physical arrangement of the motor.
That is what I mean about the cycles not lining up with the physical arrangement of the motor.
On today's comtemporary rotarys, the chambers and faces are not an equal # either. There are 2 chambers and 3 faces. You also need to consider the dynamic effect between the incoming intake charge and the expanding exhaust gases. As the exhaust gases exit, it helps draw the intake charge in.
actually if we pull our heads out of the rotary engine and and think more like a piston which i think we have to with thise design, you can actually make it work with a valving system like piston engines. Which i think is what they were aiming for. By that you can use the same port for intake and exhaust and they would just rotate their use for every cycle. The other way that I see you can make this work, is by dedicating either the centerplate or the front and rear plate for intake, and the other one or two left for just exhaust. Now you might think oh well dumbass, so all the stuff that you put in goes right outside to exhaust, that would be true but this is where my solution for that comes in. We can built a circular rotatring disc with slots in there that would be used as a "timing" disc to open and close the ports when needed. There would be 4 disc one on either side of the rotor. Porting the engine would be similar to porting the ports on a renesis ... which as most of you guys know mayb not be the best engine but its still something. And having the discs inthere that would still maintain the rotory engine to rev up high maintaining its traditional smooth feel.
Lol ... for just coming up with this idea i think its actually a pretty damn good one ... prototype anyone? Let me know what you guys think
Lol ... for just coming up with this idea i think its actually a pretty damn good one ... prototype anyone? Let me know what you guys think
couldn't resist ... but from my precious post ... VTEC anyone? lol ... maybe this is the kind of thing that we need to help emmision on our engine and improve gas milleage?
Hunting Skylines
Joined: Apr 2001
Posts: 3,431
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From: Brisbane, Queensland, Australia.
Originally Posted by trochoid
On today's comtemporary rotarys, the chambers and faces are not an equal # either. There are 2 chambers and 3 faces. You also need to consider the dynamic effect between the incoming intake charge and the expanding exhaust gases. As the exhaust gases exit, it helps draw the intake charge in.
