Tungsten as a hypergolic fuel gel additive

Details Tungsten as a hypergolic fuel gel additive Tungsten as a hypergolic fuel gel additive

1997-05-02

1998-05-05

Diamond, Alan

Fuel and related compositions

Solidified liquid

149 20, 149 36, 1491082, 60211, 60215, 60216, C06D 500

Patent

active

057476659

ABSTRACT:
Tungsten is added to fuel gels to increase the density specific impulse. l gels contain monomethylhydrazine or other hypergolic liquids well known in the art. The quantity of tungsten employed can vary from 10%-98% weight percent depending on the specific application. The important parameters to consider during formulation are particle size, concentration, combustion efficiency, physical properties, and plume signature. Tungsten particle sizes ranging from 10 microns to 0.5 micron were compared with carbon of 0.24 when burned in air. It is shown that tungsten burns as well as or better than carbon; however, the increased density specific impulse achieved with tungsten as compared with carbon verifies that tungsten as a high energy additive to hypergolic fuel gels is superior. The burning temperature with small particle size tungsten is controlled to yield a plume with minimum signature since all of the tungsten exist in the gaseous state in the exhaust gases thereby yielding an exhaust plume which is transparent as attractive for tactical missiles to avoid detection.

REFERENCES:
patent: 3933543 (1976-01-01), Madden
patent: 4039360 (1977-08-01), Allan
patent: 4202668 (1980-05-01), Sippel et al.
patent: 5133183 (1992-07-01), Asaoka et al.
patent: 5438824 (1995-08-01), Asaoka et al.
patent: 5597947 (1997-01-01), Stephens

Affiliated with

Also associated with

Rating

Tungsten as a hypergolic fuel gel additive does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tungsten as a hypergolic fuel gel additive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tungsten as a hypergolic fuel gel additive will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-56228