The New 'inside out' Wankel engine packs a punch despite its size

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LiquidPiston's latest XTS-210 solves, so the company claims, the problems associated with older Wankel engines by turning them inside out.

claims they have solved many of the issues Wankel engines suffered from with their XTS-210 "inside-out Wankel" rotary engine. They claim that its two-stroke supercharged liquid-cooled engine boasts three times the horsepower and five times the power of a diesel engine of comparable size or weight.Its development, and planned commercialization, have been boosted by a recent $9 million U.S. Army contract..

This is different from traditional piston engines, which obviously use pistons. Three curved sides on the rotor serve as pistons and compress the air and fuel as it rotates inside the chamber. They were renowned for their small size, smooth operation, and high power-to-weight ratio. Still, they used a lot of gas and caused a lot of pollution, which caused them to lose popularity.

"[The XTS-200] has a long, skinny, moving combustion chamber, we have a stationary combustion chamber that's nice and round. You can drive it to 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," LiquidPiston"And then there's our apex seals, they're like our piston rings.

According to LiquidPiston, these figures are competitive with the 25.2 hp and 46 lbs/ft peak outputs of theWith the growth of electric vehicles, LiquidPiston is in an interesting position with regards to developing a new combustion engine. However, the XTS-210's portability and ability to use multiple fuels could help it reach mass production if it proves effective and durable in various situations.

 

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