| 摘要 |
The present invention relates to an arrangement 1 for a pump operating with an ejector action, which comprises a part 5 which can be connected to a pressurized-fluid source, a number of parts 8, 9 leading to the desired place of use, and an ejector portion 14 which can be connected to the parts. The invention makes it possible inter alia to increase the effect of a pump of the type indicated, so that the consumption of pressurized fluid decreases at the same time as the discharge capacity increases. The ejector portion 14 comprises a pressurized-fluid supply duct 16 leading from the pressurized-fluid connection part 5 and provided with a throttle, and an evacuation part 27 of reduced width. The pressurized- fluid supply duct sleeve etc. 16 extends at least past the ejector portion connection 24, which can communicate with a suction line leading from a bucket or another place of use, seen in the axial direction of the ejector portion, so that pressurized water etc. is arranged so as to be spurted out from the sleeve etc. 16 beyond said outlet 24 on said converging fluid-receiving portion 27, and said sleeve etc. 16 has an end wall with an opening hole, and which end wall has reduced wall material thickness towards the centre of the duct and said opening hole, as a result of which water etc. spurted out from the sleeve is distributed in a conical shape from said opening. <IMAGE> |
