Rotary internal combustion engine

An engine comprising:

• an intake/compression housing having an intake/compression bore, the intake/compression bore having an intake/compression cylindrical inner wall having a first axis, the intake/compression housing having N intake ports in fluid communication with the intake/compression bore, wherein N is an integer greater than 2;
• a power/exhaust housing having a power/exhaust bore opposed to the intake/compression bore and having a power/exhaust cylindrical inner wall having a second axis coaxial to the first axis, the power/exhaust housing having N exhaust ports in fluid communication with the power/exhaust bore;
• an intake/compression rotor disposed within the intake/compression bore and rotatable relative to the intake/compression bore about a third axis of rotation which is coaxial to the first axis, the intake/compression rotor having N sides and N apex portions which engage the intake/compression cylindrical inner wall and the intake/compression rotor having a circular intake/compression face plate which includes N intake/compression crossover ports;
• N reciprocating intake/compression vanes extending radially into the intake/compression bore through respective intake/compression vane slots in the intake/compression cylindrical inner wall, the N reciprocating intake/compression vanes spaced circumferentially around the inner wall of the intake/compression bore, the N reciprocating intake/compression vanes each having a contact surface which contacts an outer surface of the intake/compression rotor, the N reciprocating intake/compression vanes configured to reciprocate in and out of the intake/compression bore as the intake/compression rotor rotates about the third axis and the contact surface of the N reciprocating intake/compression vanes remains substantially in contact with the outer surface of the intake/compression rotor;
• a power/exhaust rotor disposed within the power/exhaust bore and rotatable relative to the power/exhaust bore about a fourth axis of rotation which is coaxial to the first axis, the power/exhaust rotor having N sides and N apex portions which engage the power/exhaust cylindrical inner wall and the power/exhaust rotor having a circular power/exhaust face plate which includes N power/exhaust crossover ports;
• and
• N reciprocating power/exhaust vanes extending radially into the power/exhaust bore through respective power/exhaust vane slots in the power/exhaust cylindrical inner wall, the N reciprocating power/exhaust vanes spaced circumferentially around the power/exhaust cylindrical inner wall, the N reciprocating power/exhaust vanes each having a contact surface which contacts an outer surface of the power/exhaust rotor, the N reciprocating power/exhaust vanes configured to reciprocate in and out of the power/exhaust bore as the power/exhaust rotor rotates about the fourth axis and the contact surface of the N reciprocating power/exhaust vanes remains substantially in contact with the outer surface of the power/exhaust rotor.