Rotary engine

Claim 1

A rotary engine comprising in combination: a. a plurality of connected rotors mounted on a main shaft and adapted to rotate with said shaft, each said rotor having a plurality of chambers formed therein; b. a plurality of dividing sections separating each rotor from the next said rotor; c. housing means enclosing said plurality of rotors and including two end plates; d. a plurality of input and output ports directing steam through each said input port into a rotor chamber and exhausting steam through each output port from a rotor chamber; e. each said rotor being enclosed by said housing means and defining a plurality of enclosed chambers with said rotor chambers, each enclosed chamber having a generally arcuate teardrop cross section having flat sides, and each rotor chamber being open to the interior of said housing means by a predetermined length to allow only one input or output port to be open to any one chamber at a time; and each said rotor chamber being located in a different angular position around said shaft, said plurality of input and output ports including one input and one output port for each rotor chamber whereby said rotor will open and close said input and output ports in a predetermined cycle and will drive a plurality of rotors simultaneously.