NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
An air bearing fan for EVA suit ventilationThe portable life-support system (PLSS) ventilation requirements are outlined, along with the application of a high-speed axial fan technology for extravehicular-activity (EVA) space-suit ventilation. Focus is placed on a mechanical design employing high-speed gas bearings, permanent magnet rotor, and current-fed chopper/inverter electronics. The operational characteristics of the fan unit and its applicability for use in a pure-oxygen environment are discussed. It delivers a nominal 0.17 cu m/min at 1.24 kPa pressure rise using 13.8 w of input power. It is shown that the overall selection of materials for all major component meets the NASA requirements.
Document ID
19900062378
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Murry, Roger P.
(Allied-Signal Aerospace Co. Torrance, CA, United States)
Date Acquired
August 14, 2013
Publication Date
July 1, 1990
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE PAPER 901432
Accession Number
90A49433
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available