Ventilation fans for future space suits must meet demanding performance specifications, satisfy stringent safety requirements for operation in an oxygen atmosphere, and be able to increase output to operate in buddy mode. A regenerative blower is an attractive choice due to its ability to meet these requirements at low operating speed. This paper describes progress in the development and testing of a regenerative blower designed to meet requirements for ventilation subsystems in future space suits. The blower includes a custom-designed motor that has significantly improved its efficiency. We have measured the blower s head/flow performance and power consumption under conditions that simulate both the normal and buddy mode operating points. We have operated the blower for TBD hours and demonstrated safe operation in an oxygen test loop at prototypical pressures. We also demonstrated operation with simulated lunar dust.


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    Title :

    Performance and Life Tests of a Regenerative Blower for EVA Suit Ventilation


    Contributors:

    Conference:

    AIAA 42nd International Conference on Environmental Sytems ; 2012 ; San Diego, CA, United States


    Publication date :

    2012-01-01


    Type of media :

    Conference paper


    Type of material :

    No indication


    Language :

    English




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