公开(公告)号：US3640186A

公开(公告)日：1972-02-08

申请号：US3640186D

申请日：1970-01-12

Applicant: ASEA AB

Inventor： LUNDSTROM HANS

IPC: B21C23/00 ,  B21C27/00 ,  F16J12/00 ,  F16L9/22 ,  F02F1/00 ,  F16L9/16

CPC classification number: F16J12/00 ,  B21C23/007 ,  B21C27/00

Abstract: A high-pressure cylinder for hydrostatic extrusion is formed of an inner tube, a prestressed outer tube around the inner tube and a prestressed sheath surrounding the outer tube. The inner tube is of such a structure that pressure medium introduced into the cylinder can reach the outer side of the inner tube. When the pressure in the cylinder is low, the inner tube takes up pressure from the outer tube, whereas when the pressure is increased the outer tube is expanded out of contact with the inner tube. The inner tube may be formed of three tube sectors with longitudinal radial partition surfaces.

Abstract translation: 用于静液压挤出的高压缸由内管，围绕内管的预应力外管和围绕外管的预应力护套构成。 内管具有能够到达筒内侧的压力介质的结构。 当气缸中的压力低时，内管从外管吸收压力，而当压力增加时，外管膨胀而不与内管接触。 内管可以由具有纵向径向分隔表面的三个管段形成。

公开(公告)号：US3640116A

公开(公告)日：1972-02-08

申请号：US3640116D

申请日：1970-06-15

Applicant: ASEA AB

Inventor： HELLMAN ERIK

IPC: B23K9/00 ,  B23K31/02

CPC classification number: B23K9/0035

Abstract: A hollow, elongated, thin-walled body is formed by welding at least one seam to close the body around a mandrel of a material having a greater coefficient of thermal expansion than the material of the body, whereafter the body and mandrel are heated until the thermal stresses in the body are greater than the yield strength of the material of the body.

Abstract translation: 通过焊接至少一个接缝来形成中空的，细长的薄壁体，以使主体围绕具有比主体材料更大的热膨胀系数的材料的心轴闭合，此后主体和心轴被加热直到 身体的热应力大于身体材料的屈服强度。

公开(公告)号：US3639872A

公开(公告)日：1972-02-01

申请号：US3639872D

申请日：1970-12-31

Applicant: ASEA AB

Inventor： HESSEN PETTER ,  SIIRAK RUUDI

IPC: H01F27/33 ,  H01F27/36 ,  H01F27/24

CPC classification number: H01F27/33 ,  H01F27/365

Abstract: In transformers for high power amounts, for collecting the leakage flux and leading it back to the iron core, plates of laminated magnetic material are arranged close to the ends of the winding coils and at least one end of the plates is in magnetic connection with the core.

Abstract translation: 在用于高功率量的变压器中，为了收集漏磁通并将其引回到铁芯，层叠磁性材料的板被布置成靠近绕组线圈的端部，并且板的至少一端与 核心。

公开(公告)号：US3629687A

公开(公告)日：1971-12-21

申请号：US3629687D

申请日：1970-12-18

Applicant: ASEA AB

Inventor： HESSEN PETTER

IPC: H02M7/06 ,  H02M7/757 ,  H02M7/00

CPC classification number: H02M7/7575 ,  Y02E60/60

Abstract: In converter stations in DC networks for ultrahigh voltages there is at least one chain of converter bridges. The converter bridges in each chain are series connected on the DC side and connected over transformers to an alternating current network on the AC side. When there are two or more chains all chains are connected in parallel between earth and the transmission line in the DC network. At least some of the apparatus connected to high potential, such as transformers, reactors and the like, have their tanks connected to the DC side of the converter chain at a point where the potential in relation to earth is at least half the voltage in the DC network.

公开(公告)号：US3629685A

公开(公告)日：1971-12-21

申请号：US3629685D

申请日：1970-11-20

Applicant: ASEA AB

Inventor： JOHANSSON ARNE

IPC: H02H3/28 ,  H02H9/06 ,  H02M1/18 ,  H02P

CPC classification number: H02H3/28 ,  H02H9/06

Abstract: A static converter station connected to a DC transmission line over a DC reactor is provided with lightning arrester protection means which includes a spark gap stack connected to the DC line and provided with a starting mechanism for its ignition, and with an arrangement responsive to earth faults in the station to control the starting mechanism to trigger the lightning arrester.

公开(公告)号：US3629066A

公开(公告)日：1971-12-21

申请号：US3629066D

申请日：1968-08-09

Applicant: ASEA AB

Inventor： ANDERSSON HERBERT OLOF ,  EKWALL PER ANDERS

IPC: G21C3/338 ,  G21C3/32

CPC classification number: G21C3/338 ,  Y02E30/40

Abstract: A fuel assembly for nuclear reactors is formed of a polygonal sheathing tube and a bundle of fuel pins inside the tube. The pins are provided with helically wound spacer elements of equal pitch. The fuel pins are of two different types, pins of type B having one more spacer element than those of type A. Each pin of type A is surrounded by six pins of type B, and each fuel pin of type B, except those at the sides of the bundle, is surrounded by alternate pins of types A and B.

公开(公告)号：US3625819A

公开(公告)日：1971-12-07

申请号：US3625819D

申请日：1968-02-12

Applicant: ASEA AB

Inventor： SODERGARD BENGT MARTIN

IPC: G21C5/10 ,  G21C15/16

CPC classification number: G21C5/10 ,  Y02E30/40

Abstract: In a light water boiling reactor, a superstructure comprising a steam treating unit and a lid for the moderator tank is arranged above the moderator tank and is detachable for the purpose of interchange of fuel. A shield substantially concentric with the moderator tank and having a greater diameter is attached to the tank in such a position that the upper end of the shield is at a level above the lid of the tank. The superstructure is fixed to the upper part of the shield by a detachable hook joint which transmits compressive force against the lid to force it against the top of the tank through rodlike supporting members.

公开(公告)号：US3622820A

公开(公告)日：1971-11-23

申请号：US3622820D

申请日：1970-09-21

Applicant: ASEA AB

Inventor： TJERNSTROM OVE

IPC: H02K9/19 ,  H02K3/22

CPC classification number: H02K3/22 ,  Y10T29/49012

Abstract: In a liquid-cooled electric machine, a rotor-cooling system is provided for avoiding thermal unbalance. This includes a number of cooling channels which run axially in the rotor and a distribution chamber for coolant arranged outside of the coil ends of the rotor winding, to which the cooling channels are connected by tubes. Each tube passes in a liquid-type way through two opposed walls of the distribution chamber and has at least one opening between the walls into the interior of the chamber. The opening is in the form of an elongated slot and its size may be varied by a pistonlike member which can be adjusted longitudinally of the tube to cover more or less of the opening.

公开(公告)号：US3618917A

公开(公告)日：1971-11-09

申请号：US3618917D

申请日：1970-02-09

Applicant: ASEA AB

Inventor： FREDRIKSON BENGT ,  HELLSING SVEN ,  FOLGERO KARE

IPC: H05B6/16 ,  C21C5/52 ,  C22B4/00 ,  F27D11/06 ,  H05B6/20 ,  C21C7/00

CPC classification number: H05B6/20 ,  C21C5/5241 ,  C22B4/00 ,  Y02P10/253

Abstract: A channel-type induction furnace has one or more inductors, a bottom channel beneath the inductor or inductors and side channels connecting the bottom channel to the hearth. In the case of more than one inductor, there is also at least one central channel running between the inductors. Nozzles are provided openings into the bottom channel opposite the side and central channels for the supply of inert and/or active gas into the channels to modify the flow therein and to carry to the top of the melt various impurities.

公开(公告)号：US3610813A

公开(公告)日：1971-10-05

申请号：US3610813D

申请日：1970-04-27

Applicant: ASEA AB

Inventor： LINDERHOLM SVEN

IPC: H01B17/34 ,  H02G15/22 ,  H02G15/04

CPC classification number: H02G15/22 ,  H01B17/34 ,  Y10S411/96

Abstract: An oil filled electric bushing consists of an elongated, tubular insulator, through which an electric conductor extends. The conductor is provided at one of its ends with a terminal assembly comprising an inner tap firmly joined to the conductor and an external terminal tap threaded on to the inner tap and pressed against an end seal member. A resilient tubular locking pin holds the inner tap in a fixed position in relation to the end seal member.