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公开(公告)号：EP0477153A1
公开(公告)日：1992-03-25
申请号：EP91850196.6
申请日：1991-08-14
申请人： ITT Flygt Aktiebolag
发明人： Forssberg, Alf , Fredriksson, Boris
CPC分类号： F16J15/34 , F04D29/128
摘要： The invention concerns a seal device for a submersible machine such as a pump or a mixer.
Two identical mechanical seals (6, 7) and (8, 9) resp and an intermediate spring device (17) are arranged in a holder which is easy to replace. The spring (17) is common for the two seals and is connected to sockets (13) and (14) resp which anchor the rotating seal rings (6) and (8) resp. The oil room (20) of the machine is connected to the room containing the spring (17).摘要翻译： 本发明涉及用于诸如泵或混合器的潜水式机器的密封装置。 两个相同的机械密封件（6,7）和（8,9）和中间弹簧装置（17）布置在易于更换的保持器中。 弹簧（17）对于两个密封件是共用的并且连接到分别固定旋转密封环（6）和（8）的插座（13）和（14）。 机器的油室（20）连接到包含弹簧（17）的房间。
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公开(公告)号：EP0395604A1
公开(公告)日：1990-10-31
申请号：EP90850102.6
申请日：1990-03-09
申请人： ITT Flygt Aktiebolag
发明人： Södergard, Bengt
CPC分类号： F04D7/045 , F04D29/2288
摘要： The invention concerns a centrifugal pump for pumping polluted liquids.
The pump comprises an impeller (6) of a so-called closed type having two cover discs (11) and (12) respectively and vanes (13) therebetween. The inner parts of the vanes (13) cooperate with cutting means (5) within the pump inlet, while the lower cover disc (12) together with a non-rotating insert part (4) in the pump inlet create a radial seal, which prevents medium from entering beside of the impeller (6).摘要翻译： 本发明涉及用于泵送污染液体的离心泵。 泵包括分别具有两个盖盘（11）和（12）的所谓的封闭式叶轮（6）和叶片（13）。 叶片（13）的内部部分与泵入口内的切割装置（5）配合，而下盖盘（12）与泵入口中的非旋转插入部件（4）一起产生径向密封， 防止介质进入叶轮（6）的旁边。
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公开(公告)号：EP0388384A1
公开(公告)日：1990-09-19
申请号：EP90850083.8
申请日：1990-02-28
申请人： ITT Flygt Aktiebolag
发明人： Forssberg, Alf
CPC分类号： F16J15/3404 , B01F2015/00084 , F03B11/006 , F04D29/128 , Y02E10/226
摘要： The invention concerns a mechanical seal in a seal arrangement for a submersible rotary machine.
The two seal rings in the mechanical seal, one stationary (2) and one rotary (3) are pressed towards each other by help of a spring (5). In order to lubricate and cool the sealing surface (4) between the two rings, an increased circulation of lubricant/cooling medium is obtained within the area of the sealing surface (4) by help of a cup (6) surrounding the shaft (1) so designed that it operates as a centrifugal pump.
The cup (6) is simultaneously designed as a housing accomodating a spring (5) which obtains the spring force between the two seal rings (2) and (3).摘要翻译： 本发明涉及用于潜水旋转机器的密封装置中的机械密封。 机械密封中的两个密封圈，一个固定（2）和一个旋转体（3）通过弹簧（5）的帮助相互挤压。 为了润滑和冷却两个环之间的密封表面（4），通过围绕轴（1）的杯（6）的帮助，在密封表面（4）的区域内获得润滑剂/冷却介质的循环增加 ）设计使其作为离心泵运行。 杯（6）同时被设计为容纳弹簧（5）的壳体，弹簧（5）获得两个密封环（2）和（3）之间的弹簧力。
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公开(公告)号：EP0286611A1
公开(公告)日：1988-10-12
申请号：EP88850102.0
申请日：1988-03-25
申请人： ITT Flygt Aktiebolag
发明人： Fries, Hjalmar , Kume, Koije
CPC分类号： B01F7/00733
摘要： The invention concerns a submersible mixer for mixing fluids being directed along a vertical guide.
The mixer is so arranged that the reaction force from its propeller causes the mixer to oscillate between two extreme positions, thus obtaining a more sufficiant mixing of the liquid.摘要翻译： 本发明涉及一种用于混合沿着垂直导向件引导的流体的潜水混合器。 混合器被布置成使得来自其螺旋桨的反作用力使混合器在两个极限位置之间振荡，从而获得更充分的液体混合。
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公开(公告)号：EP0845290A1
公开(公告)日：1998-06-03
申请号：EP97850154.2
申请日：1997-11-06
申请人： ITT Flygt Aktiebolag
发明人： Lisi, Arnaldo
CPC分类号： B01F7/066 , B01F3/04262 , B01F3/04588 , B01F3/04609 , B01F3/0876 , B01F5/0212 , B01F5/0475 , B01F5/0478 , B01F7/00341 , B01F7/02 , B01F2003/04319 , B01F2003/04361 , C02F3/207 , Y02W10/15
摘要： The invention concerns a mixing and aeration unit, especially for waste water treatment and comprising a submersible axial flow mixer (2), an elongated jet ring (6) with inlet (6a) adjacent the mixer propeller (3) and housing a number of air bubble diffusers (10).
摘要翻译： 本发明涉及混合和曝气单元，特别是用于废水处理，并且包括潜水式轴流混合器（2），具有与混合器螺旋桨（3）相邻的入口（6a）的细长喷射环（6）并且容纳多个空气 气泡扩散器（10）。
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公开(公告)号：EP0568508B1
公开(公告)日：1997-11-05
申请号：EP93850071.7
申请日：1993-04-05
申请人： ITT Flygt Aktiebolag
发明人： Södergard, Bengt
CPC分类号： H01H35/186 , G01F23/36 , G01F23/44
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公开(公告)号：EP0531267A3
公开(公告)日：1994-06-08
申请号：EP92850180.8
申请日：1992-07-24
申请人： ITT Flygt Aktiebolag
发明人： Brandt, Bengt Ake
IPC分类号： H02K9/19
CPC分类号： H02K9/19 , F04D13/086 , F04D29/588 , H02K5/20
摘要： The invention concerns a device for designing the internal cooling system in a centrifugal pump. The cooling jacket (3), which surrounds the stator (2) of the electric motor, is provided with transportation pipes (7) for cooling liquid and exhaust pipes (8) for air bubbles. In order to prevent said pipes from disturbing circulating flow of cooling liquid in the slot between the stator (2) and the jacket (3), the stator is arranged eccentrically with reference to the casing (3) thus obtaining a space (10) for the pipes (7) and (8) where those do not disturb the flow.
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公开(公告)号：EP0286611B1
公开(公告)日：1993-10-13
申请号：EP88850102.0
申请日：1988-03-25
申请人： ITT Flygt Aktiebolag
发明人： Fries, Hjalmar , Kume, Koije
CPC分类号： B01F7/00733
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公开(公告)号：EP0540486A1
公开(公告)日：1993-05-05
申请号：EP92850231.9
申请日：1992-10-02
申请人： ITT Flygt Aktiebolag
发明人： Bratthäll, Johan , Forssberg, Alf , Blixt, Bengt
IPC分类号： F16J15/32
CPC分类号： F16J15/3236
摘要： The invention concerns a seal element meant to seal off a slot between two cylinder formed surfaces, for instance when securing a mechanical face seal ring to a shaft. The element, which is arranged within a groove (3) between the two surfaces (1) and (2), is ring formed with a cross section having three sections (7), (8) and (9). The middle section (8) has a considerably shorter axial length than the other two sections, thus giving the element a considerable axial flexibility.
摘要翻译： 本发明涉及一种用于密封两个圆筒形成表面之间的槽的密封元件，例如将机械表面密封环固定到轴上时。 布置在两个表面（1）和（2）之间的凹槽（3）内的元件环形成具有三个部分（7），（8）和（9）的横截面。 中间部分（8）具有比其它两个部分短得多的轴向长度，从而使元件具有相当大的轴向灵活性。
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公开(公告)号：EP0538212A1
公开(公告)日：1993-04-21
申请号：EP92850179.0
申请日：1992-07-24
申请人： ITT Flygt Aktiebolag
发明人： Brandt, Bengt Ake
CPC分类号： F04D29/588 , F04D29/2288
摘要： The invention concerns a centrifugal pump impeller for pumping of liquids containing solid pollutions.
According to the invention the impeller (5) is on its back side provided with back vanes (8) for circulation of cooling liquid for the electric motor of the pump, a narrow slot (11) being provided between the impeller (5) and the pump housing (10) through which cooling liquid is taken in, said slot at certain areas being widened by help of axially directed grooves (12) at the tips of the back vanes (8).摘要翻译： 本发明涉及用于泵送含有固体污染物的液体的离心泵叶轮。 根据本发明，叶轮（5）在其背侧设置有用于循环用于泵的电动机的冷却液的后叶片（8），在叶轮（5）和 泵壳体（10）通过冷却液体被吸入，通过在后叶片（8）的尖端处的轴向定向的凹槽（12）来加宽在某些区域处的所述狭槽。
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