| 摘要 |
<p>The invention relates to a flexible pipe element, in particular for the exhaust gas system of a motor vehicle. Said element comprises metal bellows (1), which have a threaded or annular corrugated construction and a metal hose (2), which is positioned coaxially inside the metal bellows and consists of segments that are annular or are wound in the manner of a thread. The external cross-section of said hose is smaller than the internal cross-section of the metal bellows. Said element also comprises an external knitted sleeve (4) that surrounds at least sections of the exterior of the metal bellows. The flexible pipe element is configured in such a way that it has a dynamic transfer rigidity in an axial direction of below 50 N/mm, measured at an excitation amplitude of 0.1 mm, at ambient temperature over a frequency range for the excitation vibration of between 80 Hz and 140 Hz.</p> |
