| 发明名称 | Pre-nozzle for a drive system of a watercraft to improve the energy efficiency | ||
| 摘要 | A drive system for a watercraft has a water inlet opening, a water outlet opening, and a fin system. A propellerless pre-nozzle for the drive system is configured rotationally asymmetrically in order to further improve the drive efficiency. | ||
| 申请公布号 | US8944869(B2) | 申请公布日期 | 2015.02.03 |
| 申请号 | US201213403586 | 申请日期 | 2012.02.23 |
| 申请人 | becker marine systems GmbH & Co. KG | 发明人 | Lehmann Dirk;Mewis Friedrich |
| 分类号 | B63H1/18;B63H5/16 | 主分类号 | B63H1/18 |
| 代理机构 | Kelly & Kelley, LLP | 代理人 | Kelly & Kelley, LLP |
| 主权项 | 1. A pre-nozzle for a drive system of a watercraft, comprising: a water inlet opening; a water outlet opening; and a fin system disposed inside the pre-nozzle, such that the fin system is not arranged in the inlet region of the pre-nozzle, and wherein no propeller is disposed inside the pre-nozzle; characterized in that the pre-nozzle is configured to be rotationally asymmetrical. | ||
| 地址 | Hamburg DE | ||