Rotary internal combustion diesel engine

A rotary engine comprising:

• an outer rotor housing having an internal cavity the peripheral surface of which has a yousroid profile;
• an anterior plate, a posterior plate, and, in configurations using at least two outer rotor housings, at least one intermediate partition plate, whereby said anterior plate and said posterior plate, in cooperation with said outer rotor housing's internal cavity, form a yousroid chamber;
• a two-apex rotor of a vesica piscis profile mounted for relative rotation within said outer rotor housing with the two working faces of said two-apex rotor extending between the apex portions, each face functioning as a piston, the apex portions of said two-apex rotor having continuous sealing cooperation with an interior surface of said outer rotor housing to define a smaller yousroid sub-chamber and a larger yousroid sub-chamber between said two-apex rotor and said outer rotor housing which vary in volume in response to said relative rotation;
• and
• a generating point within said internal cavity through which all straight lines extending from cavity wall to cavity wall in any direction, and also passing through said generating point, are exactly the same length, and wherein said generating point is also located such that when said smaller yousroid chamber is at maximum compression said generating point is not located at the center of said two-apex rotor.