Siemens Aktiengesellschaft

Norbert Huber

Dirk Diehl

Hans-Peter Krämer

Muris Torlak

Stefan Stocker

Lothar Schoen

Johann Schuster

Thomas Hammer

Wolfgang Rzadki

Harald Landes

Bernd Wacker

Alexander Hahn

Wolfgang Schmidt

Bernd Gromoll

Armin Datz

Jan Weigel

Bruno Gebhard

Wolfgang Weydanz

Andreas Koch

Jochen Straub

Rudolf Röckelein

Michael Meinert

Karsten Rechenberg

Klaus Dennerlein

Hagen Hertsch

Andreas Reiner

Ralf Cordes

Michael Koolman

Dieter Most

Carola Kuehn

Joachim Frauenhofer

Jürgen Rieger

Rudolf R&ouml;ckelein

Werner Straub

Martin Tackenberg

Jochen SCHÄFER

Carola KÜHN

Armin Rastogi

A method for cooling a generator using cooling air flowing through the generator, wherein a density of the cooling air when the generator is idling and running passively at a mains frequency of a mains network to which the generator is connected is reduced relative to a density of the cooling air when the generator is operating under load.

Method for cooling a generator

An apparatus is provided for delivering a substance containing hydrocarbons from a reservoir. The reservoir can be subjected to thermal energy in order to reduce the viscosity of the substance. The apparatus includes at least one conductor loop for inductively applying current as an electric/electromagnetic heater. A conductor of the conductor loop is surrounded in at least one section by a liquid-carrying conduit. The liquid-carrying conduit is perforated such that when a liquid is supplied the liquid penetrates into the reservoir from the liquid-carrying conduit via a perforation.

Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit

A cooling device for disposal between two flat coils of a gradient coil has at least one first and with at least one second foil that are connected to each other in areas such that continuous cooling channels for a cooling fluid are formed. The cooling channels are branched, whereby an improved cooling effect is produced with a smaller thickness of the cooling device.

Cooling device for a gradient coil and use thereof

A device is provided for extracting a hydrocarbon-containing substance from a reservoir. Thermal energy can be applied to the reservoir in order to reduce the viscosity of the substance. The device includes at least one conductor loop for inductively supplying electric current, to provide electric and/or electromagnetic heating, and a fluid conducting device for transporting and introducing a solvent fluid into the reservoir, to further reduce the viscosity of the substance.

Device and method for the recovery, in particular in-situ recovery, of a carbonaceous substance from subterranean formations

An electrolytic cell, a method for manufacturing the cell, and a method of operating same. The electrolytic cell has at least two bipolar plates, at least one fluid inflow and outflow, as well as at least one laminated core arranged between the at least two bipolar plates. The laminated core is constructed from laminations which are stacked one on top of the other. At least two laminations have recesses which are designed to extend through the entire thickness of the respective lamination. The at least two laminations are arranged one on top of the other in such a way that recesses in adjacent laminations overlap partially, but not completely, as a result of which ducts, which are continuous in the direction of the plane of the lamination, are formed.

Electrolytic cell having a laminated core of laminations which are stacked one on top of the other with recesses, and method for manufacturing and operating same

A device stores electric energy, in particular for the traction supply of a rail vehicle. The device has a plurality of chargeable storage cells with cell poles, a cooling body that is in thermal contact with the storage cells, and a plurality of bridge members, by way of which two of the plurality of storage cells are in electric contact. Accordingly, at least some of the bridge members contact the storage cells on the sides thereof facing the cooling body. A bridge member contains a connecting web having two recesses and two connecting parts, each being introduced into one of the recesses. Each connecting part is connected to a cell pole of a storage cell to be contacted. The connecting parts are fixed non-rotatably and non-displaceably in a connecting web by a releasable tensioning device. Thus the efficiency and service life of the energy storage device can be increased by reducing the thermal resistance between the storage cells and the cooling body.

Apparatus for electrical energy storage

A method for extracting bitumen and/or extra-heavy oil from an underground deposit is provided. The energy for producing the steam and for the electric heating is generated in situ, for which purpose part of the extracted bitumen and/or extra-heavy oil is burned in an industrial turbine with a downstream generator coupled to the turbine. The industrial turbine may be a gas turbine or a steam turbine. In particular the industrial turbine with downstream generator is assigned a waste heat recovery steam generator which serves for generating the steam and accordingly takes the form of a boiler. Through intermediate storage of the bitumen and/or ultra-heavy oil produced it is possible to implement a self-contained closed circuit which operates autonomously, independently of any external energy supply, using approx. 20% of the extracted bitumen and/or extra-heavy oil for the purposes of extraction.

Method for extracting bitumen and/or ultra-heavy oil from an underground deposit, associated installation and operating method for said installation

A method is for conveying bitumen or heavy oil in a deposit is provided. The bitumen or very heavy oil is liquefied by way of an inductive conductor loop as a heater and is led away using an extraction pipe, wherein the conductor loop and the extraction pipe are disposed relative to one another such that the heating and thus extraction of bitumen or very heavy oil is maximized. To this end, one of the conductors of the conductor loop is disposed substantially vertically above the extraction pipe.

Method and device for in-situ conveying of bitumen or very heavy oil

A method for the in situ extraction of bitumen or very heavy oil from oil sand deposits close to the surface, where thermal energy is introduced into the deposit to reduce the viscosity of the bitumen or very heavy oil is provided. Condensed water is used that is introduced into the deposit via an injection pipe and is horizontally conducted inside the pipe within the deposit such that the water can evaporate in situ and the heat can be applied to the deposit. An apparatus including an injection pipe, an extraction pipe, a converter and electrical conductors are also provided.

Method and apparatus for in situ extraction of bitumen or very heavy oil

An apparatus for the in situ extraction of bitumen or very heavy oil from oil sand deposits, and applying heat energy to the deposit to reduce the viscosity of the bitumen is provided. A high-frequency generator feeds electric power to a linearly extended conductor loop at a predefined depth of an oil sand deposit, the inductance of the conductor loop is compensated in some sections or continuously. Advantageously, one of the conductors of the conductor loop may be disposed substantially in a vertical direction above the extraction pipe.

Apparatus for in-situ extraction of bitumen or very heavy oil

A method to extract bitumen or very heavy oil in situ from oil sand seams close to the Earth's surface is provided. Energy is introduced via at least two pipes at a given, repeatable distance from the seam, a predefined geometry is maintained in relation to the well pair. The associated apparatus includes at least one additional pipe which is alternatively designed as an electrode or also for feeding vapor and is placed above the injection pipe.

A device for the in-situ extraction of a hydrocarbon-containing substance, while reducing the viscosity thereof, from an underground deposit, has at least one injection pipeline extending in the deposit and at least one production pipeline leading out of the deposit, which together form a so-called well pair. The injection and production pipelines each have a starting region extending above ground in some areas, and an active region connecting to the starting region inside the deposit. With the method, during a heating phase hot steam is applied to the injection and production pipelines, while during a production phase hot steam is applied only to the injection pipeline. Furthermore, the active region of the injection pipeline is additionally configured as an induction heater regarding the surrounding area in the deposit. In the associated device, for example, the well pair formed by the injection pipeline and production pipeline can be configured as electrodes.

Method and device for the in-situ extraction of a hydrocarbon-containing substance from an underground deposit

A gradient coil system for a magnetic resonance tomography apparatus has a layer structure including a gradient coil layer and a cooling layer. The cooling layer is fashioned as a plate heat exchanger, composed of plates, for cooling the gradient coil layer. In this way, a highly efficient cooling of the gradient coil layer is achieved with a lower structural height compared to conventional tubular configurations.

Gradient coil system and MR imaging system embodying same

Disclosed is a ship propulsion system comprising a synchronous machine () with an especially superconducting rotor winding that is to be subjected to intense cooling and a normally conducting stator winding () which is to be cooled. The stator winding () is disposed at least in part inside a support structure () encompassing a hollow cylindrical magnetically soft outer body () and web-type support teeth () that extend in an axial and radial direction. A hollow cylindrical part () of an exterior housing () encloses the outer body (). In order to cool at least some areas of said housing part (), the stator winding () is thermally coupled to water as a cooling medium (K) via the support structure () and the housing part ().

Ship propulsion system with cooling systems for the stator and rotor of the synchronous machine of the propulsion system

A cryostat having a connecting branch which is connected to a coolant chamber and is open on the end side. The connecting branch expands from an inside diameter to an outside diameter.

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Erlangen, Germany

Norbert Huber