Patent ID: 6354332
Filing Date: 2002-03-12
Classification: B60H,F16L

Abstract:
A coolant line for use with an air conditioning system operating with carbon dioxide as a coolant, comprising:an inner, metallic, coolant-tight corrugated hose having crests defining a radial outside diameter; the hose having a hose end; a flexible metal jacket having a jacket end; the jacket surrounding said hose to provide an axial support resisting radial pressure in the coolant line; said jacket being spaced from said crests of said hose by a radial clearance; a connecting part connected to said hose end for coupling said hose end to the air conditioning system; said connecting part being formed of a metal tubular piece having a radially outward projecting collar; said metal tubular piece projecting into said jacket at said jacket end; said jacket surrounding and contacting said collar along an outer circumference of said collar; said jacket extending beyond said collar and being affixed to said metal tubular piece on a side of said collar oriented away from said hose end; and a substantially incompressible, temperature resistant intermediate plastic layer filling at least said radial clearance between said jacket and said crests to prevent play between said hose and said jacket.