Thermal insulating member for a vehicle component
AssigneeVolvo Truck Corporation
InventorKumaravel Manickam
Life of this patent
Estimating the term…
Abstract
A thermal insulating member includes a multilayer complex having first layer which is made of a hydrophobic aerogel; a second layer which is made of a fiber wool; and a metallic foil, called outer layer. The thickness of the first layer decreases along a variability direction of the multilayer complex. The thermal insulating member can be arranged around a vehicle component which extends in a longitudinal direction and which has a first end at a first temperature T1 and a second end at a second temperature T2 lower than T1, in use. In the mounted state, the variability direction of the multilayer complex is parallel the longitudinal direction of the vehicle component and the greatest thickness of the first layer is closer to the first end.
Claims19
A thermal insulating member for a vehicle component, comprising a multilayer complex having:
- a first layer which is made of a hydrophobic aerogel;
- a second layer which is made of a thermally insulating material that has small pockets of gas trapped in a fibrous or a foam structure, wherein the second layer is directly bonded to the first layer;
- a metallic foil, defining an outermost layer of the multilayer complex;
- the multilayer complex defining a depth direction across the layers;
- wherein a thickness of the first layer decreases along a variability direction of the multilayer complex which is orthogonal to the depth direction, at least over part of a dimension of the multilayer complex along said variability direction,
- wherein the thickness of the second layer increases in the same way as the thickness of the first layer decreases, along the variability direction, such that the overall thickness of the set comprising the first layer and the second layer is substantially constant.
Dependencies are inferred from the claim text.