Patent ID: 8777595

Claim:
A rotary piston engine, comprising: at least two rotors, a power component and a blocking component, which interact and which have spur gearings a number of teeth of which differs by one tooth, the rotors and an engine housing accommodating the rotors delimiting working compartments, wherein the rotors are twisted at a defined angle to each other to produce a lifting effect, wherein the power component is driven by an electric motor arranged on a common axis, the electric motor and said power component being rotationally connected and wherein the gearing is a trochoidal gearing, characterized, in that the electric motor is an external rotor motor having an internal stator and an external rotor, in that the engine housing is directly connected to said electric motor, in that said engine housing has a supporting tube section projecting into the internal stator and supporting the same, in that the external rotor has a rotor bell which encloses the internal stator and which has a center drive shaft extending through the supporting tube section and being rotationally connected to the power component, in that the drive shaft is mounted towards an inner wall of said supporting tube section, in that the engine housing comprises a flange-like center section having a mounting flange, and in that the mounting flange, the supporting tube section, and the engine housing are formed integrally as a single piece.