NASA NTRS · 19660000401
Rotary valve controls multiple hydraulic leveling cylinders
Abstract
Single rotary valve controls a circular bank of hydraulic leveling cylinders that must maintain large loads within plus or minus three arc minutes of the true vertical. Since the position of the valve spool determines the flow rate of each bank of cylinders and hence cylinder position, different flow rates may be obtained by changing the spool shape.
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1966-09-01. Rotary valve controls multiple hydraulic leveling cylinders. https://ntrs.nasa.gov/citations/19660000401
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