Anzeige
Erschienen in:
1986 | OriginalPaper | Buchkapitel
Design and Test of a Novel Miniature Cryogenic Expansion Turbine
verfasst von : H. B. He, K. J. Yang
Erschienen in: Advances in Cryogenic Engineering
Verlag: Springer US
Enthalten in: Professional Book Archive
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
A small cryogenic expansion turbine has been designed and tested to meet the requirements for reliable and compact helium liquifier-refrigerators. The originality of the turbine is the use of self-acting grooved gas bearings for both thrust and journal bearing. In this case, the construction of the turbine becomes simpler and the rotation is stable at very high speed. Because the radial clearance of the grooved journal bearing is only a few micrometers, it is possible to choose a small gap between turbine wheel and nozzle ring, so that the leakage loss is decreased. Experimental results show that this turbine has advantages of simple structure, reliable operation and good adiabatic efficiency, therefore it has very good prospects for applications.