Insulating layer for solid fuel rocket engines

Details Insulating layer for solid fuel rocket engines Insulating layer for solid fuel rocket engines

1982-08-25

1985-11-12

Miller, Edward A.

Ammunition and explosives

Powder form

Having burning inhibiting means

60909, F42B 1500

Patent

active

045520704

ABSTRACT:
A solid fuel rocket engine comprises a casing which defines a combustion chamber with a solid propellant charge in the combustion chamber and an insulating layer of a water containing alkali silicate and fibers disposed between the casing and the charge. The layer is a type which will froth at a predetermined temperature which occurs during burn off of the propellant charge so that it increases in its thickness dimension in the area of the hot gases which develop and provides an adequate insulation. A method of producing the layer comprises heating the alkali silicate layer to a temperature in which it becomes plastic and sheathing the propellant charge with the plastic layer. Thereafter the sheath charge is inserted into the combustion chamber casing leaving an annular gap between this layer and combustion chamber casing. Thereafter heat is applied to the vicinity of the chamber to cause the layer to froth and expand to close the annular gap. It is advantageous to include a lining of a plastic alkali layer in addition to the layer which sheaths the propellant charge between it and the casing. In addition, it is sometimes advantageous to add a plastic foam material in the gap between the sheath, the cover charge and the casing.

REFERENCES:
patent: 2811467 (1957-10-01), Hull et al.
patent: 3124542 (1964-03-01), Kohn
patent: 3636881 (1972-01-01), Godfrey
patent: 3916618 (1975-11-01), Araki et al.
patent: 4001126 (1977-01-01), Marion et al.
patent: 4092186 (1978-05-01), Gordon et al.
patent: 4365558 (1982-12-01), Lippler et al.
Hawley, The Condensed Chemical Dictionary, 9th Ed., pp. 800-801, Van Nostrand Reinhold Co. (1977), New York.

Affiliated with

Also associated with

Rating

Insulating layer for solid fuel rocket engines does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Insulating layer for solid fuel rocket engines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Insulating layer for solid fuel rocket engines will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1874130