Posted on 05/24/2023 1:22:18 PM PDT by Red Badger
LiquidPiston says its new XTS-210 solves the efficiency, lubrication and fuel type issues of Wankel rotary engines. This supercharged, liquid-cooled two-stroke claims 5X the power of an equivalent size or weight diesel engine, and 3X the torque.
Targeted at military, commercial and aerospace applications, the XTS-210 is about the size of a basketball, weighs in at 19 kg (42 lb), and displaces 210 cc. It'll run on multiple fuels, including diesel and kerosene/jet fuel. The company is shooting for about 20 kW (26.8 hp) and 29.4 Nm (21.7 lb-ft) of torque, both at 6,500 rpm.
These numbers compare favorably against the 18.8 kW (25.2 hp) and 63 Nm (46 b-ft) peak outputs of the Kohler KDW1003 E536A, says LiquidPiston, a diesel roughly five times the physical size of the XTS-210, and over four times the weight. And the XTS design uses just two primary moving parts: a rotor and a shaft. You can see a breakdown of an older version in the video below.
VIDEO AT LINK......
So how do they work? "If you recall the Wankel," LiquidPiston co-founder and CEO Alec Shkolnik explained to us in a 2020 interview, "they have a triangular rotor inside a peanut-shaped housing. We have the opposite, a peanut-shaped rotor in a tri-lobed housing. So take everything you know about the Wankel and turn it literally inside out.
"They have a long, skinny, moving combustion chamber, we have a stationary combustion chamber that's nice and round. You can drive it to a high compression, just by making the chamber smaller. And because it's stationary, we can directly inject fuel where the Wankel could not. So those are the two key advantages of the diesel: high compression ratio and direct injection.
(Excerpt) Read more at newatlas.com ...
I had the mazda MPV 1998.
Best designed family vehicle ever
My only complaint about it was that the back was too damned small unless you folded down the back seat. When you have kids, and have to pack up their world in the car every time you leave the house...you just give up and leave the seat down.
Hmmm . . .
Had two kids center row
two kids back row
and when going to the lake: I could double buckle in at least another bunch and have 10 or 11 of us with two innertubes hanging out the window and picnic and towels in the trunk
Live in the land of ice and snow and used the FWD all the time. very well put together car. I loved all except one practically had to remove the engine for any work beyond an oil change.
As opposed to British trannies who have an inside out wanker.
Did Mazda vehicles once have a type of rotary engine?
yep, Rx-1 and Rx-2 sedans, and then the Rx-7 sprts car.
Might have been some in between those.
The EPA will ban them.
Let’s try Mitch....
Yes, I remember. I had an RX-7 back in the day and it was fun. The engine was not good for “drag racing” type starts since it didn’t have a lot of power at lower RPMs. But at 3000 RPM on, it was really responsive and fun to drive.
Mine was the regular engine but I once drove a turbocharged version and WOW! Unreal. It would leap forward at the flick of the gas pedal.
Mazda Repu. I only know this because there’s a Hot Wheels version of it. I think it’s currently available again.
How come the Wankel engine never took off?
Emissions and fuel economy.
Thanks for this thread.
Mazda?....................
Apparently so...................
Apex seal problems.
Trivia:
The AMC Pacer was designed to have a Wankel Engine built by GM, but GM cancelled their plans to produce it.............
yes
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