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1. WO2012064194 - HOT GAS HANDLING DEVICE AND MOTORIZED VEHICLE COMPRISING THE DEVICE

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[ EN ]

Claims

1. Hot gas handling device for exhaust gasses discharged from an internal combustion engine, comprising:

- a housing, enclosing a space for transporting the exhaust gasses, wherein the housing is provided with an entrance-opening for the exhaust gasses discharged from the engine and an exit-opening for transporting the exhaust gasses away from the engine,

wherein the housing comprises a thermal insulating layer, arranged for resisting the temperature of the exhaust gasses discharged from the engine, and a supporting structure at a side of the insulating layer opposite from the space, which supporting structure is made of reinforcing fibres embedded in a matrix,

wherein the housing further comprises a liner facing the space, the liner comprising a porous fibrous structure.

2. Device according to claim 1, wherein the liner comprises metal and/or mineral fibers, such as glass fibers.

3. Device according to claim 2, wherein the liner comprises a fibrous spiral, a fibrous mesh and/or a fibrous braid.

4. Device according to claim 1, 2 or 3, wherein the flexible thermal insulating layer comprises a first layer facing the space, arranged for withstanding a first temperature and a second layer at a side of the first layer opposite from the space, arranged for withstanding a second temperature, wherein the first temperature is higher than the second temperature, and wherein the second layer comprises a specific heat capacity higher than 0,5 (kJ/(kg*K)), preferably higher than 0,6 (kJ/(kg*K)) and most preferably higher than 0.7 (kJ/(kg*K)).

5. Exhaust according to claim 4, wherein the first layer is a permeable fibrous structure, comprising fibres selected from the group consisting of: steel, silicium, calcium, aluminium, titanium, zirconium, platinum and combinations thereof.

6. Device according to any of the claims 1 - 5, wherein the first and/or second layer comprise a material with an open-cell structure.

7. Device according to claim 6, wherein the second layer comprises an aerogel.

8. Device according to claim 7, wherein the aerogel comprises micro-fibres.

9. Device according to any one of the preceding claims, wherein the supporting structure comprises reinforcing fibres selected from the group consisting of: polyamide fibres, polyester fibres, carbon fibres, PBO-fibres, aramid-fibres, steel- fibres, platinum-fibres, PBI fibres, glass fibres, silicon carbide fibres and combinations thereof.

10. Device according to any one of the preceding claims, wherein the supporting structure comprises a matrix, which is composed of a material elected from the group consisting of epoxy, poly-imides, phenol, phenol- formaldehyde, melamine and combinations thereof.

11. Device according to any one of the preceding claims, wherein the first and/or second layer comprises a textile structure comprising fibres, such as a braid, a woven fabric and the like.

12. Device according to any one of the preceding claims, wherein the housing is provided with a ceramic coating on the side of the thermal insulating layer facing the space.

13. Device according to any one of the preceding claims, the device comprising at least two housings, each enclosing a space for transporting the hot gasses and wherein each housing is provided with an entrance-opening for the hot gasses discharged from a manifold connected to the engine and an exit-opening for transporting the hot gasses away from the engine.

14. Device according to any one of the preceding claims, the device comprising at least one coupling element, for connecting the device to a manifold or an internal combustion engine.

15. Motorized vehicle provided with an internal combustion engine and a device according to any of the preceding claims connected to the engine or a manifold of the engine.