| 摘要 |
A multi-channel hose comprises a first wall layer 4 of an elastomeric and / or thermoplastic material. A reinforcing, second wall layer 5 is wrapped around the first wall layer. At least one secondary tube 6 is spirally wrapped around the reinforcing, second wall layer 5, and a cover layer 7 of an elastomeric and / or thermoplastic material is arranged around the first 4 and second wall layer 5 and embeds the secondary tube 6. The secondary tube 6 can also comprise a reinforcing layer surrounding its main wall layer. The reinforcing layers can comprise a wire mesh or textile, and can include metal yarns. The invention also relates to a method for manufacturing such a multi-channel hose. This method comprises extruding the first wall layer 4 and secondary tube 6. It further comprises arranging the reinforcing layer 5 around the first wall layer 4, and wrapping the secondary tube 6 around the reinforcing layer 5. Lastly the cover layer is extruded over it all and this is vulcanized. |
