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Ferrofluid Would Seal Linear-Motion ValveProposed valve employs ferrofluid to make tight seal. Seal requires no precisely machined parts, and hand lapping of valve seats are unnecessary. Magnetic fluid fills gap between shaft and annular pole piece in chamber wall. Precise shaft fit is not necessary.
Document ID
19820000326
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Chandler, J. A.
Date Acquired
August 10, 2013
Publication Date
May 1, 1983
Publication Information
Publication: NASA Tech Briefs
Volume: 7
Issue: 2
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MSC-20148
Accession Number
82B10326
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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