| 摘要 |
A construction is described for the reduction of pressure in a liquid that flows through an extended hollow body, characterised in that the hollow body comprises a unit that defines one or more flow channels, said channels show a stepwise, or continuously, increasing flow cross section calculated from an inlet end to an outlet end of the one or more channels. Also described is an application area for the construction. In addition, a valve construction is described for the reduction of the pressure in a liquid flow comprising a closing body that can be set between a position that closes for through-flow of liquid and a position that opens for full through-flow, where the closing body comprises one or more pipes in which bodies are arranged for stepwise or continuous increase of the liquid flow area and thereby the reduction of the liquid pressure. |
