External combustion rotary piston engine

F - Mech Eng,Light,Heat,Weapons – 01 – C

Patent

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Details

F01C 1/20 (2006.01) F01C 1/08 (2006.01) F01C 11/00 (2006.01) F01C 19/00 (2006.01)

Patent

CA 2552819

An engine (400) is disclosed and comprises: a compressor (428) which periodically defines a chamber and carries out a pressurization process wherein the chamber volume is decreased to produce pressurized air; a combuster (426) which combusts fuel with the pressurized air to produce primary exhaust; an air motor (408) which is driven by the primary exhaust to produce power and secondary exhaust; an expander (410) which expands the secondary exhaust to produce tertiary exhaust and power; and a shaft (314) which directs power produced by the motor (408) and the expander (410) to the compressor (428) and any load. The combuster (426) is adapted to receive varying amounts of fuel, thereby to vary the power to the load. The compressor (428), during pressurization, releases air from the chamber such that the chamber pressure during pressurization and the primary exhaust pressure is substantially constant at steady state conditions, said constant being a function of the load being driven by the power.

L'invention concerne un moteur (400) qui comprend : un compresseur (428) définissant périodiquement une chambre et mettant en oeuvre un processus de pressurisation dans lequel le volume de la chambre diminue afin de produire de l'air sous pression ; un chambre de combustion (426) qui brûle le carburant à l'aide de l'air sous pression afin de produire un échappement primaire ; un moteur à air comprimé (408) qui est actionné par l'échappement primaire afin de produire la puissance et l'échappement secondaire ; un expanseur (410) qui agrandit l'échappement secondaire afin de produire un échappement tertiaire et la puissance ; et un arbre (314) qui transmet la puissance produite par le moteur (408) et par l'expanseur (410) au compresseur (428) et à une charge quelconque. La chambre de combustion (426) est conçue pour recevoir des quantités variables de carburant afin de varier la puissance dirigée sur la charge. Pendant la pressurisation, le compresseur (428) libère l'air de la chambre de façon que la pression de la chambre pendant la pressurisation et la pression d'échappement primaire soient sensiblement constantes dans des conditions stables, cette constance étant fonction de la charge actionnée par la puissance.

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