-
公开(公告)号：EP0660904A1
公开(公告)日：1995-07-05
申请号：EP94918260.0
申请日：1994-06-24
申请人： Stähle, Martin
发明人： Stähle, Martin
摘要： Proposed is a pump with an impeller (1) which is securely mounted by its boss (3) on a shaft (4) so that it cannot rotate. The rear (driven) edges of the impeller rotate, leaving a narrow clearance (a), over the rear wall (5) of the pump housing. Together with the impeller (1), this wall forms a labyrinth gap (6) which connects the pump chamber (2') with a hollow space (7) in the boss. Connected in this hollow space (7) to the impeller (1) so that it cannot rotate is a coaxial flywheel designed to impart a vigorous rotational motion to the liquid in the hollow space (7) and hence force it out of the space. The space (7) has a peripheral opening (12) to allow the liquid to pass out. The air which collects near the shaft (4) escapes through a gap (10) between the boss-housing wall (20) and the shaft (4). The peripheral opening (12) is located in the boss-housing wall (20) and designed as a propulsion nozzle. It opens out into a space (11) adjacent to the hollow space (7) in the boss and connected to it by the gap (10), the nozzle pointing towards a diffusion tube (13) and forming a jet pump (12, 13) through which the liquid emerging from the hollow space (7) in the boss flows.
-
公开(公告)号：EP0114932A1
公开(公告)日：1984-08-08
申请号：EP83109755.5
申请日：1983-09-29
申请人： Stähle, Martin
发明人： Stähle, Martin
IPC分类号： F04D29/22
CPC分类号： F04D29/225
摘要： Die von der Laufradachse durchsetzte Gehäusewand (23) ist als Kegelstumpf ausgebildet. Die diese Gehäusewand mit kleinem Spiel (24) bestreichende Stirnkante (28) der druckseitigen Laufradschaufelflanke (27) erstreckt sich von der Laufradschaufelspitze (35) spiralförmig bis zu einer Stelle (31), an der sie in der Nabe (21) endet; dadurch wird zwischen Schaufelaustrittspitze (35) und dieser Stelle (31) eine relativ grosse, zwischen druckseitiger und saugseitiger Schaufelflanke liegende Fläche mit nach innen abnehmender Breite b der Gehäusewand (23) freigelegt.
摘要翻译： 所述通过轮轴壳体壁遍历（23）被形成为截锥体。 其中这些壳体壁与压力侧叶轮叶片边缘的一小的间隙（24）bestreichende前边缘（28）（27）从叶轮叶片尖端（35）延伸螺旋到一个点（31），其中，它终止于所述轮毂（21）; 从而叶片出口点（35）和该点（31）的相对大的，压力侧和吸力侧叶片边缘表面之间躺在向内减小宽度b壳体壁的之间（23）露出。
-
公开(公告)号：EP0114932B1
公开(公告)日：1986-09-03
申请号：EP83109755.5
申请日：1983-09-29
申请人： Stähle, Martin
发明人： Stähle, Martin
IPC分类号： F04D29/22
CPC分类号： F04D29/225
-
公开(公告)号：EP0660904B1
公开(公告)日：1997-03-05
申请号：EP94918260.4
申请日：1994-06-24
申请人： Stähle, Martin
发明人： Stähle, Martin
摘要： Proposed is a pump with an impeller (1) which is securely mounted by its boss (3) on a shaft (4) so that it cannot rotate. The rear (driven) edges of the impeller rotate, leaving a narrow clearance (a), over the rear wall (5) of the pump housing. Together with the impeller (1), this wall forms a labyrinth gap (6) which connects the pump chamber (2') with a hollow space (7) in the boss. Connected in this hollow space (7) to the impeller (1) so that it cannot rotate is a coaxial flywheel designed to impart a vigorous rotational motion to the liquid in the hollow space (7) and hence force it out of the space. The space (7) has a peripheral opening (12) to allow the liquid to pass out. The air which collects near the shaft (4) escapes through a gap (10) between the boss-housing wall (20) and the shaft (4). The peripheral opening (12) is located in the boss-housing wall (20) and designed as a propulsion nozzle. It opens out into a space (11) adjacent to the hollow space (7) in the boss and connected to it by the gap (10), the nozzle pointing towards a diffusion tube (13) and forming a jet pump (12, 13) through which the liquid emerging from the hollow space (7) in the boss flows.
-
-
-
搜索结果
4 条记录 (耗时 0.007 秒)
