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Record Details

Record 57 of 22599
Venturi Air-Jet Vacuum Ejector For Sampling Air
Author and Affiliation:
Hill, Gerald F.(NASA Langley Research Center, Hampton, VA.)
Sachse, Glen W.(NASA Langley Research Center, Hampton, VA.)
Burney, L. Garland(NASA Langley Research Center, Hampton, VA.)
Wade, Larry O.(Planning Research Corp.)
Abstract: Venturi air-jet vacuum ejector pump light in weight, requires no electrical power, does not contribute heat to aircraft, and provides high pumping speeds at moderate suctions. High-pressure motive gas required for this type of pump bled from compressor of aircraft engine with negligible effect on performance of engine. Used as source of vacuum for differential-absorption CO-measurement (DACOM), modified to achieve in situ measurements of CO at frequency response of 10 Hz. Provides improvement in spatial resolution and potentially leads to capability to measure turbulent flux of CO by use of eddy-correlation technique.
Publication Date: Oct 01, 1990
Document ID:
19900000549
(Acquired Nov 04, 1995)
Accession Number: 90B10549
Subject Category: MACHINERY
Report/Patent Number: LAR-14024
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs (ISSN 0145-319X); 14; 10; P. 86
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: NASA Langley Research Center; Hampton, VA, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: AIR SAMPLING; VACUUM PUMPS; VENTURI TUBES
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
Availability Notes: Additional information available through: National Technology Transfer Center (NTTC), Wheeling, WV 26003, (Tel: 1-800-678-6882).
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