| 摘要 |
<p>A jet pump, particularly for hot water heating or supply systems having return flow mixing, has a feed head that is connected to a housing that contains a mixing nozzle, this containing a mixing tube that is connected (if necessary through a diffuser) to a second line connection, the diffuser being coaxial to the boost nozzle and being connected to a mixing nozzle, extending through a housing chamber into which opens at least a third line connection oriented transversely to the mixing tube. In order to achieve, amongst other things, a sufficiently lower noise level and at the same time a higher degree of efficiency the orifices (20, 21) of the third and if necessary of a fourth line connection (18, 19) are arranged at a lateral distance from the boost nozzle (10) in which regard, between the orifices (20, 21) and the boost nozzle (10) there is a portion of the housing chamber configured as a longitudinal annular channel (22) that surrounds the mixing tube (14).</p> |
