Swaged tube and duct connector feasibility
Design of fluid line connectors depending solely upon cold forming of metal to carry structural loads and to make helium leak-tight seal
SEALING↗
SEARCH · Engineering Papers
Results for “leak”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Evaluation program for secondary spacecraft cells. Acceptance test of Sonotone Corporation 3.5 ampere-hour sealed nickel-cadmium cells
Leak, capacity, overcharge, and internal resistance tests of ceramic sealed nickel cadmium secondary spacecraft cells
STORAGE BATTERY↗
Evaluation program for secondary spacecraft cells. Acceptance test of C and D batteries, 5.0 ampere-hour sealed-calcium cells
Leak, capacity, overcharge, and internal resistance tests of sealed lead-calcium secondary spacecraft cells
SPACECRAFT POWER SUPPLY↗
Orbital tube flaring system produces tubing connectors with zero leakage
An orbital tube flaring system produces tubing connectors with a zero-leak potential needed in high pressure hydraulic and pneumatic systems. The flaring system incorporates a rolling cone and rolling die to closely control flare characteristics.
Williams, J. R.↗
Portable fixture facilitates pressure testing of instrumentation fittings
Portable fixture facilitates pressure testing to detect possible leaks in instrumentation fittings mounted on tank bulkheads. It uses a vacuum cup which seals a pressure regulator adapter around one side of the fitting to be pressure tested. Leakage is detected with a gas sniffer.
Olson, G. A.↗
Apparatus for fabrication of americium- beryllium neutron sources prevents capsule contamination
Modified gloved enclosure is used to fill a capsule with a mixture of americium and beryllium radioactive powders to seal weld the opening, and to test it for leaks. It contains a horizontal partition, vortex mixer, mounting press, welder, test vessel, and radiation shielding to prevent surface contamination.
Mohr, W. C.↗
Advanced studies on multi-layer insulation systems Final report
Reduction of heat leak rate into stored cryogenic propellants by multilayer insulation systems
CRYOGENIC STORAGE↗
Pioneer project support
Pioneer project support - Doppler tracking data analysis, trajectory dispersions and initial tracking station acquisition, and gas leak effect on orbit
PIONEER SPACE PROBE↗
Liquid propulsion systems
Bladder and expulsion devices for spacecraft liquid propulsion systems - pinhole leak test fixture, heat sterilization of ethylene propylene with hydrazine, and metal diaphragms
PROPYLENE↗
Criterion for mass drop-off measurements based upon precise pressure and temperature measurements
Mass drop-off measurements, based on precise pressure and temperature measurements, evaluated for space vehicle gas leak detection
PRESSURE MEASUREMENT↗
Thermionic converter life-test results and failure mechanisms.
Thermionic converter life-test results and failure mechanisms noting braze failure, collector deposit, emitter warpage and separation and cesium reservoir leak
THERMIONIC CONVERTER↗
Development of an increased sampling rate monitoring system.
Need for increased sampling rates of particle counters to improve monitoring system performance for clean room sampling and leak testing of HEPA FILTERS
PARTICLE COUNTER↗
Thermal short improves sensitivity of cryogenically cooled maser
In-line, quarter-wave thermal short cools the center conductor of the signal-input coaxial transmission line to a cryogenically cooled traveling wave maser. It reduces both the thermal noise contribution of the coaxial line and the heat leak through the center conductor to the maser at 4.4 degrees K.
Clauss, R. C.↗
Method for reinforcing tubing joints
Joint repair technique uses a longitudinally split aluminum shield over the joint ferrule and immediately adjacent tubing to reseal or reinforce leaking or weak joints in small tubing. Epoxy resin coating on inside surfaces of the two shield halves provides a tightly sealed bond between shield and tubing.
Kinzler, J.↗
Nondestructive testing of brazed rocket engine components
Report details study made of nondestructive radiographic, ultrasonic, thermographic, and leak test methods used to inspect and evaluate the quality of the various brazed joints in liquid-propellant rocket engine components and assemblies. Descriptions of some of the unique equipment and methods developed are included.
Adams, C. J.↗
Study of a Renovated Command Module Laboratory and Renovated Command Module. Volume 2 - Mission System Performance and Configuration Analysis Final Report
Diffusion of Freon and helium trace gases for detection of leaks in aerospace systems
Dodds, J. I.↗
Nondestructive testing - Applications in the outer space environment.
Nondestructive testing techniques for in-space use, discussing leak detection and repair and fuel and pressure line checkout
Beal, J. B.↗
Nondestructive testing - Applications in the outerspace environment.
Nondestructive testing techniques for in-space use, discussing leak detection and repair and fuel and pressure line checkout
Beal, J. B.↗