| 摘要 |
<p>The flow passage (4) for fluids has at least one wall bounding the flow passage in such a way that with a through-flow of a fluid at least one flow region is formed which has an axial and simultaneously tangential flow component. The wall is constructed in such a way that a circulating spiral flow is formed in areas or completely. The flow section of the flow passage is not cylindrical and is twisted in the axial direction so that with a throughflow of fluid a spiral-form flow is established at least in areas.</p> |
