Двигатель LiquidPiston’s X патент на него

[is2006]

Это не Ванкель, но похож!

http://liquidpiston.com/
В 2013 году фирма получила $6.5 миллионов на доработку двигателя.
Вижу недостаток, такой же как у Ванкеля, негде особо расширяться газам (мал "ход"), да и сжатие тоже мало, конечно можно это поправить турбиной.

У фирмы есть патент:
Cycloid rotor engine
WO 2012135556 A3
ABSTRACT
A rotary engine has a cycloid rotor and a sealing grid including a face seal that rotates with the rotor, and including other seals that do not rotate with the rotor. As the rotor rotates within a housing, the rotor, housing and seal grid form at least one working chamber between them, the chamber undergoing a change from initial volume V1 to V2, which is less than V1, thus compressing a working medium, and subsequently expanding to volume V3, which may be larger than V1, such that the chamber volume is a smooth and continuous function of rotor's rotational angle.
https://www.google.com/patents/WO2012135556A3

Среди авторов: Nikolay Shkolnik, Alexander C. Shkolnik

Два брата с русской фамилией Школьник.
Вот так.