Solid Propellant Cool Gas Generator GAS GENERATOR_

GAS
GENERATOR_
Solid Propellant
Cool Gas Generator
Moog Bradford B.V. is partnering with a Dutch consortium including technology research institute TNO Defense,
Security & Safety and CGG Technologies B.V., to jointly market the Cool Gas Generator (CGG) technology for spaceflight
applications. In this symbiotic relation, TNO provides the technology and research capability while Bradford acts as the
industrial partner, for the overall system design, manufacturing and verification aspects. The intellectual property rights
are with CGG Technologies B.V.
The Cool Gas Generator is a unique technology that produces pure gas through decomposition of a solid material, while
the gasses leave the gas generator at ambient temperature. Due to the unique design no external filtering or cooling is
needed for the gas, this giving a high storage efficiency. The gas generators can be sized from very small to large, covering
application areas from small nano-satellites to large inflatable structures such as airbag landing systems for planetary
landers. Nitrogen and oxygen generators are available for space applications and a hydrogen generator is in development.
Advantages
• Gas output at ambient temperature
• Volume, packaging and mass efficiency
• Long storage lifetime without leakage
• Simple and modular technology
© ESA
© ESA
• Not pressurized until activation
•No maintenance or pre-launch filling required
•Space qualified technology
© ESA
Solid
Propellant
Cool Gas Generator
Cool
Gas Generator
Performance Characteristics
Gas production
43 gram Nitrogen (customer adaptive)
Gas purity
> 98% nitrogen
Gas delivery temperature
ambient +10 ºC
40 bar Maximum Expected Operating Pressure (MEOP)
Pressure range
2 x MEOP (proof)
4 x MEOP (burst)
-10 … +40 °C operating
Environmental temperature range
-40 … +70 °C non-operating
Mass
550 grams (incl. COGEX specific interfaces, can be reduced to ~350 grams)
Dimensions
Ø 47 x 167 mm, mounting: Ø 94 mm
Fluid interface
Ø 10 mm, 1 mm thick weldable tube stub (customer adaptive)
Mechanical interface
4 x M5 (customer adaptive)
Igniter
ESA standard igniter
Body material
Titanium
Typical Applications of CGG Technology
• Inflatable structure (airbags, re-entry shield, deployable space structures)
• Cold gas propulsion (propellant gas supply, high pressure gas tank re-fill)
• Extension mechanisms (e.g. landing leg deployment)
• Hydrogen/oxygen gas supply for fuel cells
• Nitrogen, oxygen, hydrogen gas supply (e.g. for instruments)
De Wijper 26, 4726 TG Heerle (NB), The Netherlands
www.bradford-space.com or www.moog.com/space
© 2 0 13 Mo o g, Inc. All rig hts reser ved.
Form 500-846 0213