Abstract A transpiration cooled rocket chamber is made by forming a porous metal wall on a suitably shaped mandrel. The porous wall may be made of sintered powdered metal, metal fibers sintered on the mandrel or wires woven onto the mandrel and then sintered to bond the interfaces of the wires. Intersecting annular and longitudinal ribs are then electroformed on the porous wall. An interchamber wall having orifices therein is then electroformed over the annular and longitudinal ribs. Parallel longitudinal ribs are then formed on the outside surface of the interchamber wall after which an annular jacket is electroformed over the parallel ribs to form distribution passages therewith. A feed manifold communicating with the distribution passages may be fabricated and welded to the rocket chamber or the feed manifold may be electroformed in place.
A rocket chamber comprising: an inner annular wall of porous material, wherein said inner annular wall is tightly woven wire bonded at points of contact, said wire being selected from the group of metals consisting of stainless steel, bronze and copper; a network of annular and longitudinal ribs disposed outwardly of said wall and bonded thereto; an interchamber wall disposed outwardly of said ribs and bonded thereto to form distribution cavities, at least one metering orifice being located in said interchamber wall at every distribution cavity, a plurality of parallel longitudinal ribs disposed outwardly of said inter chamber wall and bonded thereto; an outer annular jacket bonded to said longitudinal ribs and defining with said longitudinal ribs and said inter chamber wAll a plurality of distribution manifolds; and a feed manifold bonded to the front of said rocket chamber and communicating with said distribution manifolds.
Claim 2
Dependent Claim
145 words
A rocket chamber comprising: an inner annular wall of porous material, wherein said inner annular wall is tightly woven wire bonded at points of contact, said wire being selected from the group of metals consisting of stainless steel, bronze and copper; a network of annular and longitudinal ribs disposed outwardly of said wall and bonded thereto; an interchamber wall disposed outwardly of said ribs and bonded thereto to form distribution cavities, at least one metering orifice being located in said interchamber wall at every distribution cavity, a plurality of parallel longitudinal ribs disposed outwardly of said inter chamber wall and bonded thereto; an outer annular jacket bonded to said longitudinal ribs and defining with said longitudinal ribs and said inter chamber wAll a plurality of distribution manifolds; and a feed manifold bonded to the front of said rocket chamber and communicating with said distribution manifolds.