Dual pressure euler steam turbine

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

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F01D 5/04 (2006.01)

Patent

CA 2591231

A turbine, including a rotor on a shaft, and having in combination stationary nozzles discharging steam at a first pressure or pressures thereby producing impulse forces on the rotor; internal passages in the rotor producing a pressure head increase in the discharged steam, while simultaneously accelerating the steam, the steam discharged to a second pressure lower than the first pressure, producing reaction forces on the rotor; seal means between the stationary nozzles and the rotor, maintaining the pressure difference between the first pressure and the second pressure while minimizing steam leakage past the internal passages, turbine operations producing shaft power.

L'invention concerne une turbine comportant un rotor logé sur un arbre ; une combinaison de buses stationnaires expulsant de la vapeur à une première pression ou de premières pressions de manière à produire des forces d'impulsion sur le rotor ; des passages internes situés dans le rotor, produisant une augmentation du pic de pression dans la vapeur expulsée, tout en accélérant la vapeur, la vapeur expulsée à une deuxième pression inférieure à la première produisant des forces de réaction sur le rotor ; et des éléments d'étanchéité situés entre les buses stationnaires et le rotor, maintenant la différence de pression entre la première pression et la deuxième, tout en minimisant les fuites de vapeur en aval des passages internes, le fonctionnement de la turbine produisant la force de l'arbre.

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