FLUID DUCT

Provided herein is a fluid duct (2) comprising a tubular base wall (11) surrounding a duct channel and at least one bellows (10) formed along a section of the tubular base wall (11). The bellows (10)comprises a plurality of convolutes (12) having a profile (14) projecting radially from the base wall (11). At least one convolute (12) wraps around the duct channel at a wrap-around angle omega of between 180 degrees and 720 degrees from a first end (22a) to a second end (22b) of the convolute (12), said second end (22b) being offset in a flow direction F parallel to a centerline C of the duct channel by a non-zero offset distance D from the first end (22a). 本文提供了一种流体管道（2），其包括围成管道通道的管状基壁（11）和沿着所述管状基壁（11）的一区段形成的至少一个波纹管（10）。所述波纹管（10）包括多个旋绕卷（12），所述旋绕卷具有从所述基壁（11）径向突出的轮廓（14）。至少一个旋绕卷（12）从所述旋绕卷（12）的第一端部（22a）至第二端部（22b）环绕所述管道通道180°到720°之间的环绕角度Ω，所述第二端部（22b）在平行于所述管道通道的中心线C的流动方向F上与所述第一端部（22a）偏移非零偏移距离D。