Fiber reinforced thermoplastic hoses and methods for forming the same

A hose, comprising:

• an inner tube that forms a flow path;
• an inner fiber layer formed around an outer surface of the inner tube;
• an intermediate fiber layer formed around the inner fiber layer;
• and
• an outer fiber layer formed around the intermediate fiber layer;
• wherein the inner fiber layer, the intermediate fiber layer, and the outer fiber layer are formed from support thread having a nominal linear density, measured according to ASTM D1907, of less than about 2500 denier (den);
• wherein the support thread of the inner fiber layer, the support thread of the intermediate fiber layer, and the support thread of the outer fiber layer comprises aramid fibers;
• and
• wherein each of the inner fiber layer, the intermediate fiber layer, and the outer fiber layer comprises support thread under tension greater than about 10 pounds (lbs).

A hose, comprising:

• an inner tube that forms a flow path;
• and
• one or more fiber reinforcement layers that support the inner tube, wherein:
• the one or more fiber reinforcement layers is formed from support thread comprising aramid fibers;
• the inner tube comprises micro-voids after 120 cycles between −65° Fahrenheit (F.) (about −54° Celsius (C.)) and about 275° F. (about 135° C.) at a static working pressure of 5080 pounds per square inch (psi);
• a maximum propagation of the micro-voids through the inner tube is less than 80%.

A hose, comprising:

• an inner tube that forms a flow path;
• and
• one or more fiber reinforcement layers that support the inner tube, wherein:
• the one or more fiber reinforcement layers is formed from support thread comprising aramid fibers;
• the inner tube comprises micro-voids after 120 cycles between −65° Fahrenheit (F.) (about −54° Celsius (C.)) and about 275° F. (about 135° C.) at a static working pressure of 5080 psi;
• less than 25% of the micro-voids propagate through greater than 50% of the inner tube.