COAXIAL HOSE, IN PARTICULAR FOR ELECTROSTATIC LUBRICATION SYSTEMS, METHOD OF ELECTROSTATIC LUBRICATION AND ELECTROSTATIC LUBRICATION SYSTEM

摘要

FIELD: machine building.;SUBSTANCE: group of inventions relates to a heated coaxial hose suitable for lubrication systems, particularly for electrostatic lubrication of metal articles with solid lubricants. Coaxial hose has flexible external pipe (1), flexible internal pipe (3) for circulation of the second fluid medium inside it. Inner pipe together with the external pipe forms annular space (7) for circulation of the first fluid medium. Inner pipe comprises: inner layer made from polytetrafluoroethylene (4), intended for containing second fluid medium; inner sheath (5), intended to impart resistance to internal pipe to pressure; outer layer (6) of polyamide material intended to prevent the first fluid from passing through the braid. Also disclosed are a lubrication system equipped with coaxial hoses, and a method of electrostatic lubrication, in which inner and outer tubes of coaxial hose provide circulation of heat transfer fluid medium and lubricant.;EFFECT: proposed are coaxial hose, in particular for electrostatic lubrication systems, method of electrostatic lubrication and electrostatic lubrication system.;10 cl, 1 dwg