Results 81 to 90 of about 1,875 (170)

An Overview of SBIR Phase 2 In-Space Propulsion and Cryogenic Fluids Management [PDF]

open access: yes
Technological innovation is the overall focus of NASA's Small Business Innovation Research (SBIR) program. The program invests in the development of innovative concepts and technologies to help NASA's mission directorates address critical research and ...
Nguyen, Hung D., Steele, Gynelle C.
core   +1 more source

Valve, normally closed, titanium Pyronetics model 1426 [PDF]

open access: yes
Performance tests of the explosive actuated, normally closed titanium valve 1426, are outlined. The valves are used to control hydrazine flow in a monopropellant thruster. Data cover pressure tests, internal and external leakage tests, flow control tests,
Avalos, E.
core   +1 more source

Development and Testing of a Green Monopropellant Ignition System [PDF]

open access: yes
This paper will detail the development and testing of a "green" monopropellant booster ignition system. The proposed booster ignition technology eliminates the need for a pre-heated catalyst bed, a high wattage power source, toxic pyrophoric ignition ...
Eilers, Shannon D.   +4 more
core   +1 more source

Efficiency arcjet thruster with controlled arc startup and steady state attachment [PDF]

open access: yes, 1989
An improved efficiency arcjet thruster has a constrictor and electrically-conductive nozzle anode defining an arc chamber, and an electrically-conductive rod having a tip spaced upstream from the constrictor and defining a cathode spaced from the anode ...
Knowles, Steven C., Smith, William W.
core   +1 more source

Plasma Environment, Radiation, Structure, and Evolution of the Uranian System (PERSEUS): A Dedicated Orbiter Mission Concept to Study Space Physics at Uranus. [PDF]

open access: yesSpace Sci Rev, 2023
Cohen IJ   +13 more
europepmc   +1 more source

Green Liquid Monopropellant Thruster [PDF]

open access: yes
Physical Sciences, Inc. (PSI), and Orbital Technologies Corporation (ORBITEC) are developing a unique chemical propulsion system for next-generation NASA science spacecraft and missions.
Joshi, Prakash B.
core   +1 more source

Hydrogen/oxygen auxiliary propulsion technology [PDF]

open access: yes
A survey is provided of hydrogen/oxygen (H/O) auxiliary propulsion system (APS) concepts and low thrust H/O rocket technology. A review of H/O APS studies performed for the Space Shuttle, Space Tug, Space Station Freedom, and Advanced Manned Launch ...
Reed, Brian D., Schneider, Steven J.
core   +1 more source

Monopropellant combustion system [PDF]

open access: yes, 2005
An apparatus and method are provided for decomposition of a propellant. The propellant includes an ionic salt and an additional fuel. Means are provided for decomposing a major portion of the ionic salt.
Berg, Gerald R.   +2 more
core   +1 more source

The Advancing State of AF-M315E Technology [PDF]

open access: yes
The culmination of twenty years of applied research in hydroxyl ammonium nitrate (HAN)-based monopropellants, the NASA Space Technology mission Directorate's (STMD) Green Propellant Infusion Mission (GPIM) will achieve the first on-orbit demonstration of
Masse, Robert   +2 more
core   +1 more source

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