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US 11,236,848 B2Granted
Line element with air gap insulation
AssigneeWestfalia Metal Hoses GmbH
InventorsMichael Henkelmann, Karsten Schenk, Stefan Hauk
Life of this patent
Estimating the term…
Abstract
A line element for an exhaust pipe includes an inner hose, and an outer hose which is disposed in surrounding relation to the inner hose such as to form an intermediate space. At least one of the inner and outer hoses is formed from a wound profiled band. The band includes a radial projection which projects into the intermediate space and forms a spacer between the inner hose and the outer hose.
Claims15
A line element for an exhaust pipe, said line element comprising:
- an inner hose;
- and
- an outer hose disposed in surrounding relation to the inner hose such as to form an intermediate space,
- at least one of the inner hose and the outer hose being formed from a wound profiled band, said band including radial projections formed at opposing axial ends the band and projection into the intermediate space and forming a spacer between the inner hose and the outer hose, with abutting radial projections of neighboring hose turns being connected with one another.
1 more element
Dependencies are inferred from the claim text.