Hose for fluids pulsating at high pressure and frequency and method of construction

Abstract

A hose assembly resistant to internal high frequency high pressure fluid impulses including a tubular liner having an inner surface, an outer surface, and a wall therebetween defining a passageway, and at least one extrusion preventing layer operatively connected to said outer surface of said tubular liner. A method for making a hose assembly by extruding a flexible tubular liner, disposing an extrusion preventing layer by disposing an inner wrap of flattened fabric yarn with no interstices between adjacent windings onto an outer surface of the flexible tubular liner, and disposing an outer wrap helically counterwound about the inner wrap, securing the inner and outer wraps of the extrusion preventing layer to each other and to the tubular liner by applying a bond coating, and heating the assembly to dry, fuse, and cure the bond coating. A method of using the hose assembly.