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Electrically Controlled Valve With Small MotorDesign of electrically controlled valve exploits force-multiplying principle to overcome large back-pressure force resisting initial opening. Design makes possible to open valve by use of relatively small motor adequate for rest of valve motion, but otherwise not large enough to open valve. In simple linear lifting, small horizontal forces applied to pair of taut cables to lift large weight through short distance. In rotary lifting, similar effect achieved by rotating, about an axis, disk to which initially axial cables attached.
Document ID
19920000635
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Reinicke, Robert H.
(Eaton Corp.)
Mohtar, Rafic
(Eaton Corp.)
Nelson, Richard O.
(Eaton Corp.)
Date Acquired
August 15, 2013
Publication Date
October 1, 1992
Publication Information
Publication: NASA Tech Briefs
Volume: 16
Issue: 10
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MSC-21665
Accession Number
92B10635
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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