NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Variable-Displacement Hydraulic Drive UnitHydraulic power controlled through multiple feedback loops. In hydraulic drive unit, power closely matched to demand, thereby saving energy. Hydraulic flow to and from motor adjusted by motor-control valve connected to wobbler. Wobbler angle determines motor-control-valve position, which in turn determines motor displacement. Concept applicable to machine tools, aircraft controls, and marine controls.
Document ID
19860000078
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lang, D. J.
(Sundstrand Energy Systems)
Linton, D. J.
(Sundstrand Energy Systems)
Markunas, A.
(Sundstrand Energy Systems)
Date Acquired
August 12, 2013
Publication Date
June 1, 1986
Publication Information
Publication: NASA Tech Briefs
Volume: 10
Issue: 1
ISSN: 0145-319X
Subject Category
Machinery
Report/Patent Number
MSC-20728
Accession Number
86B10078
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

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