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16C engine ??
The CEOs of Toyota, Mazda, and Subaru held a press conference committing to make more emission compliant engines and show off latest tech.
Mazda showed off a new 2-rotor engine. The rotor housing looks like that of the 8C range extender, obviously the middle side housing is new (it's no longer iron, right?), but the front side housing looks a bit different. https://toyotatimes.jp/upload_images...ath_001_21.jpg Compare to the 8C engine in the other thread: https://cimg6.ibsrv.net/gimg/www.rx7...f00515003d.jpg |
yeah it looks like a two rotor version of the single rotor. its so simple to do, i'm not surprised that they did it, i am surprised we're seeing it.
anyways it was at a conference for carbon neutral engines, so of course Rotary. "We will continue to offer customers exciting cars by honing internal combustion engines for the electrification era and expanding the multi-pathway possibilities for achieving carbon neutrality. Given the rotary engine's compatibility with electrification and carbon-neutral fuels, Mazda will continue to develop the technology through co-creation and competition to ensure it can contribute broadly to society." （Masahiro Moro, Representative Director, President and CEO, Mazda Motor Corporation） |
what's interesting is that it's dry sump!
they also showed a new 8C prototype with Toyota's Hybrid Drive which allows for the engine to power the wheels together with the E motor, different than the MX-30 system |
couple more pics from Mazda USA,
https://cimg3.ibsrv.net/gimg/www.rx7...d81edb94a1.jpg https://cimg8.ibsrv.net/gimg/www.rx7...97e36d02a5.jpg |
Originally Posted by neit_jnf
(Post 12604315)
what's interesting is that it's dry sump!
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yeah, I think the plate is for mounting it on that platform.
The belt driven pump looks like it's for water because of the big pipe for a hose. Now I'm wondering what the opening in the front is for. |
check here https://motor-fan.jp/mf/article/232547/
The reason for the extremely low height is the dry sump lubrication system. Instead of providing an oil reservoir at the bottom of the engine (the black part of the 1 ROTOR, which can also be seen in the e-SKYACTIV R-EV), the low mounting position is achieved by adopting a system that forcibly recovers oil using a pump. This is the same system used in racing cars and commercially available super sports cars. The components are arranged in the following order from the front: 8C, 8C, generator motor. On the left side, you can see the water pump, oil pump, and oil tank. https://cimg4.ibsrv.net/gimg/www.rx7...2a570fce5e.png |
Maybe the center port isn't divided equally so most of the front rotor's exhaust goes out the front plate?
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Interesting.
I wonder if it has to do with egt and side housing localized temperature regulation. I know they did a huge study on trying to get the rotor oil seal rings to stay flat on the side housings. |
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