Patent ID: 6205788
Filing Date: 2001-03-27
Classification: F01K

Abstract:
A two stroke, external combustion, reciprocating engine having one or more similar working units, each working unit comprising:a) a first means for supplying compressed working fluid;b) a cylinder closed at one end containing a second means for controlling the flow of spent working fluid out of said cylinder and a power piston which moves in a reciprocating manner, and is connected to a power output shaft;c) a plurality of heat exchanging chambers;d) a third means for supplying hot heating fluid to said heat exchanging chambers;e) a valve for each of said heat exchanging chambers for controlling the flow of heating fluid into said heat exchanging chamber;f) a valve for each of said heat exchanging chambers for controlling the flow of heating fluid out of said heat exchanging chamber;g) a valve for each of said heat exchanging chambers for transferring said compressed working fluid into said heat exchanging chamber;h) a valve for each of said heat exchanging chambers for transferring said compressed working fluid out of said heat exchanging chamber;i) an alternating flow heat exchanger located within each of said heat exchanging chambers which moves within said heat exchanging chamber, and stores heat from the heating fluid as the alternating flow heat exchanger moves in one direction, and releases heat to the compressed working fluid as the alternating flow heat exchanger moves in the other direction;j) a low speed shaft powered by a speed reduction device powered by said power output shaft for moving: said valves for controlling the flow of heating fluid into said heat exchanging chambers, said valves for controlling the flow of heating fluid out of said heat exchanging chambers, said valves for transferring said compressed working fluid into said heat exchanging chambers, said a valves for transferring said compressed working fluid out of said heat exchanging chambers, and said heat exchangers.