Siemens Aktiengesellschaft

Werner Elsel

Siegfried Birkle

Johann Gehring

Waldemar Nippe

Arnolf Maurer

Franz Bohm

Ju/ Rgen Fischer

Known large vibrating conveyors are not readily suitable as such for conveying bulk materials or small articles into or out of a liquid bath, because the liquid transmits the vibrations to other structural parts, for example a vessel for the liquid, as a result of the incompressibility of the liquid. In order to remedy this, the vibrating conveyor device according to the invention has a compressible space or chamber underneath the vibrating part which damps the vibrations, when suitably coordinated with the liquid bath. The space is preferably gas-filled and its damping properties can be varied by feeding additional gas through a line which can be shut off by a member, or by bleeding some of the filling through a further line which can likewise be shut off by a member.

Vibrating conveyor device dipping into a liquid with damping of

Device for transporting bulk material comprising a vibrator conveyor

A support structure for transmitting large forces between a superconducting magnet winding which is cooled to a very low temperature and an abutment which is at a higher temperature level and takes up the forces, especially in an energy storage device, contains support elements which point, at least approximately, in the direction of force transmission and between which stiffening elements are attached, and at least one sheet-like heat shield. This support structure has high buckling stiffness and nevertheless results in low losses due to heat transfer by making all support elements and all stiffening elements of the support structure of a really extended design formed in a honeycomb-like structure and using at least one plane of stiffening elements to form the heat shield which is kept at a predetermined intermediate temperature by means of a coolant conducted through cooling canals. In the stiffening elements of the heat shield parts of a material with high thermal conductivity such as wires of copper, are advantageously arranged.

Support structure for transmitting large forces

A device for transmitting large forces between a superconducting magnet winding cooled to a very low temperature and an abutment which takes up the forces and is at a higher temperature level, particularly of an energy storage device, includes support bodies which are arranged one behind the other in the direction of the force transmission and are subdivided thermally at least partially by a metal sheet serving as a heat shield in which a high buckling stiffness with only small thermal losses due to heat transfer is obtained by using at least one box shaped hollow support element as the support body and by keeping the sheet metal of the heat shield at a predetermined intermediate temperature by means of a coolant conducted through at least one cooling tube connected thereto.

Device for transmitting large forces

An evacuating device for generating an insulating vaccum around the superconducting winding of the rotor of an electric machine with an inner space which is surrounded by the winding and is permeated by the magnetic field of the winding in which a co-rotating ionization getter pump operating according to the sputter principle is diposed in the inner space and has at least two electrodes arranged perpendicular with respect the magnetic field eliminating the need for rotating sealing elements at a terminal head of the rotor.

Evacuating device for generating an insulating vacuum around the

The invention relates to an arrangement for cooling the rotor of an electric machine, especially a turbine-type generator. The rotor contains a superconducting field winding, a co-rotating cold shield and a co-rotating mixing chamber for receiving a phase mixture of a coolant. A first coolant stream with a liquid coolant is further provided for cooling the field winding and a second coolant stream for cooling the cold shield. A substream derived from the first coolant stream after the latter has passed through the field winding is admixed to the second coolant stream and that a corresponding connecting line is provided with a throttling device.

Arrangement for cooling the rotor of an electric machine, especially a

A holding arrangement is disclosed which can be employed to hold a winding enclosure which contains a low-temperature-cooled electric winding on which alternating external forces act, and which is fastened within a vacuum tank by means of tie rods. In particular, the arrangement includes pre-tensioned tie rods which are arranged to unilaterally pull, via pressure posts, with force-transmitting contact the winding enclosure against the inside walls of the vacuum tank. More specifically, the tensioning force at room temperature is selected such that at low termperature a residual tension force remains which is always at least as large as the component of the external force opposing it. With such a design for the holding arrangement no readjustment devices are necessary and the heat conduction effected thereby is relatively minor.

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Erlangen, Germany

Werner Elsel