Abstract: A heat pump includes an internal heat exchanger and a regulating device designed to bring the temperature of the working fluid at the outlet of a compressor to a specifiable minimum difference above the dew point at the same pressure. This allows the use of novel coolants in heat pumps, e.g., coolants having a low dew line slope of under 1000/kJ in the temperature-entropy diagram and characterized by very good safety and environmental properties.

Abstract: An electric generator, in particular a power station generator is provided, having at least one inlet and an outlet for at least one hollow conduit for receiving a coolant fluid. The hollow conduit is situated in or on a rotor and/or a stator/stator bars and/or a shaft and/or a housing of the electric generator wherein the hollow conduit is set up as an evaporator for receiving thermal energy from the electric generator via the coolant fluid. The cooling process allows the efficiency of the electric generator to be increased.

Abstract: An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.

Abstract: A heat pump arrangement including a first heat pump through which a first fluid flows, a second heat pump through which a second fluid flows, and a heat exchanger to transfer heat from the first fluid to the second fluid. The heat is transferred from the first fluid to the second fluid at a fluid temperature of at least 120° C. for the second fluid. The first fluid and the second fluid each have a volumetric heating capacity of at least 500 kJ/m3 when the heat is transferred from the first fluid to the second fluid. Useful heat is extracted from the second fluid at a fluid temperature of at least 120° C. for the second fluid, and the first fluid and the second fluid each have a volumetric heating capacity of at least 500 kJ/m3 when the useful heat is extracted.

Abstract: A heat pump includes an internal heat exchanger and a regulating device designed to bring the temperature of the working fluid at the outlet of a compressor to a specifiable minimum difference above the dew point at the same pressure. This allows the use of novel coolants in heat pumps, e.g., coolants having a low dew line slope of under 1000/kJ in the temperature-entropy diagram and characterized by very good safety and environmental properties.

Abstract: An electric generator, in particular a power station generator is provided, having at least one inlet and an outlet for at least one hollow conduit for receiving a coolant fluid. The hollow conduit is situated in or on a rotor and/or a stator/stator bars and/or a shaft and/or a housing of the electric generator wherein the hollow conduit is set up as an evaporator for receiving thermal energy from the electric generator via the coolant fluid. The cooling process allows the efficiency of the electric generator to be increased.

Abstract: A device for separating ferromagnetic particles from a suspension has a reactor (2) through which the suspension can flow, with at least one magnet (3, 4) arranged on the outside of the reactor (2), wherein the reactor (2) has an interior space (7) and an exterior space (8) surrounding the former, wherein the interior space (7) and exterior space (8) are separated from one another by an insert (6), and the insert (6) has at least one opening (9, 10) near the at least one magnet (3, 4).

Abstract: A method for magnetic ore separation and/or dressing is provided, in which metalliferous recoverable materials are separated from conveyed metalliferous ore rock.

Abstract: An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are arranged in the base body. The rotor shaft is embodied as a hollow shaft through which the liquid cooling medium can flow. The heat exchanger dissipates heat contained in the liquid cooling medium to the surroundings of the electric machine. The heat exchanger, the rotor shaft and the cooling ducts are fluidically connected in series, producing a closed circuit for the liquid medium. A feed element is arranged to co-rotate with the rotor shaft. The feed element is inserted in the closed circuit for the liquid cooling medium to forcibly circulate the liquid cooling medium in the closed circuit as the rotor shaft for the liquid cooling medium rotates.

Abstract: A travelling field reactor and a method for separating magnetizable particles from a liquid using said travelling field reactor are disclosed. The travelling field reactor may include a tubular reactor, the outer circumference of which is provided with at least one magnet for producing a travelling field and through the interior of which the liquid flows. A displacement element may be located in the interior of the tubular reactor, said element admitting a liquid into the interior of the tubular reactor, which mixes with the liquid flowing in the reactor.

Abstract: Ferromagnetic particles are separated from a suspension using a tubular reactor having at least one magnet, where a suspension is able to flow through the reactor. A displacer is arranged inside the reactor.

Abstract: A method for magnetic ore separation and/or dressing is provided, in which metalliferous recoverable materials are separated from conveyed metalliferous ore rock.

Abstract: A method monitors an ESP with a pump for pumping oil, gas, water or other fluid media, which pump is driven by an electrical motor. Acoustical phenomena of the motor and/or the pump are used as a state variable for pumping the media. The acoustic phenomena are measured as electrical signals and the electrical signals are discriminated in respect to the pumped media. In the corresponding apparatus for monitoring of ESP, with pump section(s) for pumping a mixture of oil, gas and water, which is driven by a motor section(s), whereby at least one acoustic sensor is placed near the ESP.

Abstract: Steam is produced from a working medium of a steam generator, e.g., a waste heat steam generator, a Kalina steam generator or an ORC steam generator, using a thermal generator mounted upstream from the steam generator. To evaporate the working medium, the steam generator uses a hot heat transmitting medium that is heated in the thermal generator before being supplied to the steam generator, thereby increasing the efficiency of the steam generator.

Abstract: Ferromagnetic particles are separated from a suspension using a tubular reactor having at least one magnet, where a suspension is able to flow through the reactor. A displacer is arranged inside the reactor.

Abstract: A device for separating ferromagnetic particles from a suspension has a reactor (2) through which the suspension can flow, with at least one magnet (3, 4) arranged on the outside of the reactor (2), wherein the reactor (2) has an interior space (7) and an exterior space (8) surrounding the former, wherein the interior space (7) and exterior space (8) are separated from one another by an insert (6), and the insert (6) has at least one opening (9, 10) near the at least one magnet (3, 4).

Abstract: A water jet type pump is part of a system for generating an ultrahigh vacuum. The pump includes a pump chamber through which an ionic fluid flows at high velocity. The chamber has a first fluid feed for the fluid, the first feed ending in a nozzle with a nozzle opening, and a fluid discharge. A second feed of the pump chamber is connected to a high pressure chamber to be evacuated. Gas is suctioned out of the high vacuum chamber through the second feed by way of the flowing fluid jet, which is used to discharge the gas out of the pump chamber.

Abstract: A compressor unit having a cylinder and a piston, wherein the cylinder and the piston delimit a compressor chamber. The compressor unit also includes a capsule that surrounds at least the cylinder and the piston and a linear drive to drive a relative movement of the cylinder, the piston and the capsule. The compressor chamber has an outlet opening that opens into an interior of the capsule.

Abstract: A machine has a rotor, that can be rotated about an axis, with a superconductive winding that is coupled in a heat-conducting manner to a central coolant area of a fixed heat conducting body proturding into a hollow of the rotor via a winding carrier and a heat contact gas. The coolant area forms a line system with the line parts thereof, that are laterally connected thereto, and a condenser area of a cold unit, in which a coolant circulates in the line system as result of a thermosiphon effect. To maintain the supply of coolant to the central coolant area, even when the rotor encounters difficulties, the coolant area is provided with a lining of a porous material, preferably a sinter material, having high thermal conductivity.

Abstract: A linear compressor having an electromagnet; an oscillating body that moves back and forth in the alternating field of the electromagnet; a piston that is connected to the oscillating body and that reciprocates in a cylinder and delineates a pump chamber; and an elastically deformable plate that forms at least one of the end faces of the pump chamber.