|(11)||EP 3 447 355 A3|
|(12)||EUROPEAN PATENT APPLICATION|
|(54)||HEATED HOSE WITH IMPROVED POWER FEEDTHROUGH|
|(57) A heated hose 12 has pressure housings 20 at or near its inlet and outlet. Heat is provided by an electric resistance heater 80 located within the flow channel of the hose 12. Power feedthroughs 100 in the pressure housings 20 provide fluid-tight electrical power and return connections to the heater 80. The power feedthroughs 100 may comprise a generally cylindrical body 102 having a central axial bore 21. A conductor pin is situated within the central axial bore 21 in spaced apart relation thereto creating an annulus. The annulus may be filled with an insulating material such as a ceramic. The power feedthroughs 100 are retained within bores in each of the pressure housings 20. The bores 21 have a circumferential groove 120 in their inner walls which hold a seal 110 such as an O-ring in sealing engagement with the outer surface of the generally cylindrical body 102 of the power feedthrough 100.