Hinged rotor internal combustion engine

A rotary apparatus comprising:

• a hinged rotor assembly having rotor segments, with each said rotor segment having opposite tips, said opposite tips defining:
• points A and B, and a point P midway therebetween, and
• a right isosceles triangle including points A and B and having a vertex point C inside of said hinged rotor;
• and
• a coaxial rotor housing in which said hinged rotor is housed for rotation, said rotor housing including two flat-plate side covers and an internal profile, the internal profile being:
• generally oval so as to define an X major axis and a Y minor axis which intersect at an origin point O,
• defined by having point P of each rotor segment moving along a circle with a center at origin point O and with a radius equal to one half of a distance between points A and B, and
• defined by having vertex point C always located on one of four lobes of the curve
• r=sin[2(θ+45°)]
• where:
• angle θ is the angle between the line connecting points O and A and a positive portion of axis Y, and angle θ is also the angle between the line connecting points O and B and a positive portion of axis X, and
• r equals the length of the line connecting points O and C.