Transfer hose, in particular for use at high temperatures

Abstract

A transfer hose is configured having multiple layers and contains at least one inner layer and one transfer layer, wherein the transfer layer is structured from at least 20 wt % of polyphenylensulfide (PPS) and/or polyoxadiazole (POD) and/or aramide (AR) and/or polyimide (PI) and/or polyether ether ketone (PEEK) and/or polyethylene-2,6-naphthalate (PEN) and/or polyphenylene (PPP) and/or polyphenylenoxide (PPO) and/or polyphenylensulfide (PPS) and/or polyphenylenether (PPE) and/or polybenzoxazole (PBO) and/or carbon fibers (CF) and/or metal fibers (MF). The hose-shaped article is in particular a turbocharger hose.

Claims

1. A multi-layer mantle hose comprising: at least one inner layer; and, a mantle layer, wherein the at least one inner layer consists of FKM, wherein the mantle layer comprises at least 20% by weight polyphenylene sulfide (PPS), polyoxadiazole (POD), polyphenylene (PPP), polyphenylene oxide (PPO), polyphenylene ether (PPE), polybenzoxazole (PBO), carbon fibers (CF), metal fibers (MF), or a mixture thereof, as a mixed braid, wherein the mantle layer further comprises a rigid reinforcing element, and wherein the mantle layer is the outermost layer.

2. The multi-layer mantle hose as claimed in claim 1, wherein the mantle layer consists of PPS.

3. The multi-layer mantle hose as claimed in claim 1, wherein the mantle layer as the mixed braid is in the form of staple fibers.

4. The multi-layer mantle hose as claimed in claim 1, wherein the mantle layer contains no glass fibers.

5. The multi-layer mantle hose as claimed in claim 1, wherein at least one intermediate layer and/or at least one embedded reinforcing element layer is arranged between the inner layer and the mantle layer.

6. The multi-layer mantle hose as claimed in claim 5, wherein the intermediate layer consists of FKM.

7. A turbocharger comprising the multi-layer mantle hose as claimed in claim 1.

8. A compressor comprising the multi-layer mantle hose as claimed in claim 1.

9. A diesel particulate filter system comprising the multi-layer mantle hose as claimed in claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention will now be described with reference to the drawings wherein:

(2) FIG. 1 shows a mantle hose constructed from: inner layer 1, mantle 4;

(3) FIG. 2 shows a mantle hose constructed from: inner layer 1, embedded reinforcing element ply 3, mantle 4;

(4) FIG. 3 shows a mantle hose constructed from: inner layer 1, embedded reinforcing element ply 3, intermediate layer 2, mantle 4;

(5) FIG. 4 shows a mantle hose constructed from: inner layer 1, intermediate layer 2, mantle 4;

(6) FIG. 5 shows a mantle hose constructed from: inner layer 1, intermediate layer 2, embedded reinforcing element ply 3, mantle 4;

(7) FIG. 6 shows a mantle hose constructed from: inner layer 1, intermediate layer 2, embedded reinforcing element ply 3, intermediate layer 2, mantle 4;

(8) FIG. 7 shows a mantle hose constructed from: inner layer 1, embedded reinforcing element ply 3, helix 5, mantle 4. Helix 5 may also be embedded in an elastomeric matrix. As an alternative to introducing helix 5 between two reinforcing plies (3, 3), a monofil reinforcing element may be used in order to improve bending sensitivity and at the same time increase partial vacuum stability (see also FIG. 9 and FIG. 10);

(9) FIG. 8 shows a mantle hose constructed from: inner layer 1, intermediate layer 2, embedded reinforcing element ply 3, helix 5, mantle 4. Helix 5 may also be embedded in an elastomeric matrix. As an alternative to introducing helix 5 between two reinforcing plies (3, 3), a monofil reinforcing element may be used in order to improve bending sensitivity and at the same time increase partial vacuum stability (see also FIG. 9 and FIG. 10);

(10) FIG. 9 shows a mantle hose constructed from: inner layer 1 and mantle 4. In this case, mantle 4 is also equipped with integrated monofilaments (heavy lines) as rigid reinforcing element 6, as is known from U.S. Pat. No. 4,693,726; and,

(11) FIG. 10 shows a mantle hose constructed from: inner layer 1 and mantle 4. In this case, mantle 4 is also equipped with integrated transversely wound monofilaments (heavy lines) as rigid reinforcing element 6, as is known from U.S. Pat. No. 4,693,726.

(12) It is understood that the foregoing description is that of the preferred embodiments of the invention and that various changes and modifications may be made thereto without departing from the spirit and scope of the invention as defined in the appended claims.

LIST OF REFERENCE NUMERALS

(13) (Part of the Description)

(14) 1 Inner layer 2, 2 Intermediate layer 3, 3 Embedded reinforcing element layer 4 Outer reinforcing element layer (mantle), one or more plies 5 Helix 6 Rigid reinforcing element (monofilaments)