Rotary piston internal combustion engine

Claim 1

A ROTARY PISTON INTERNAL COMBUSTION ENGINE, WHICH COMPRISES: A FIRST ENGINE MEMBER HAVING AN INNER CONTOUR WITH A PLURALITY OF ARCHED SURFACES WITH AT LEAST TWO INWARDLY EXTENDING CREST PORTIONS, A SECOND ENGINE MEMBER ARRANGED WITHIN SAID FIRST ENGINE MEMBER AND ROTATABLE RELATIVE THERETO, SAID SECOND ENGINE MEMBER HAVING AN ARCHED OUTER PERIPHERAL SURFACE WITH AT LEAST THREE OUTWARDLY EXTENDING CREST MEANS FOR ENGAGEMENT WITH SAID INNER CONTOUR, SAID OUTER PERIPHERAL SURFACE OF SAID SECOND ENGINE MEMBER HAVING EACH OUTER PERIPHERAL SURFACE SECTION BETWEEN EACH TWO ADJACENT CREST MEANS PROVIDED WITH RECESS MEANS, AND FUEL INJECTION NOZZLE MEANS SUPPORTED BY SAID FIRST ENGINE MEMBER AND ARRANGED FOR INJECTING FUEL INTO SAID RECESS MEANS, SAID RECESS MEANS HAVING A LENGTH WHICH IS APPROXIMATELY THE TOTAL OF (A) THE DISTANCE OF TRAEL A POINT ON THE PERIPHERY OF SAID SECOND ENGINE MEMBER TRAVELS IN A PLANE WHICH IS PREPENDICULAR TO THE AXIS OF ROTATION OF SAID SECOND ENGINE MEMBER AND PASSES THROUGH THE AXIS OF SAID NOZZLE MEANS DURING THE INJECTION PERIOD OF SAID NOZZLE MEANS AND (B) THE EXTENSION OF THE NOZZLE SPRAY OF SAID NOZZLE MEANS IN SAID PLANE OVER THE BOTTOM OF SAID RECESS MEANS, THE WIDTH OF SAID RECESS MEANS BEING SELECTED IN CONFORMITY WITH THE WIDTH OF THE SPRAY OF SAID NOZZLE MEANS OVER SAID BOTTOM IN A DIRECTION PERPENDICULAR TO SAID PLANE.