Abstract: The invention comprises an atomizing device capable of efficient conversion of liquids to a gaseous state by subjection in a primary atomization zone of a liquid to a first high velocity flow of an atomizing medium in order to impart substantial aerodynamic shear to the liquid, a mixture of finely dispersed atomizing medium and liquid being thus formed. The mixture is then subjected in a secondary atomization zone to a second high velocity flow of an atomizing medium downstream of the first atomization zone. The present structure is particularly useful in fuel burner applications, especially high fuel flow and high heat applications where rapid emulsification and dispersion of fuel is necessary to promote rapid and complete combustion. Fuel materials previous considered difficult to burn can be combusted readily through use of the present structure.

Abstract: 1. A method manufacturing solid propellant grains comprising:Providing an elongated center core,Disposing metal filaments radially extending therefrom,Inserting said core and filaments in a porous cylinder having a diameter less than that of said core and filaments, whereby said filaments protrude through said cylinder,Bonding said protruding ends of said filaments to said porous cylinder,Casting a solid propellant matrix between said porous cylinder and said coreAnd curing said propellant matrix.