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Agency: European Commission | Branch: FP7 | Program: CP | Phase: ENERGY.2012.2.3.1 | Award Amount: 5.24M | Year: 2012

SUPRAPOWER is a research project focused on a major innovation in offshore wind turbine technology by developing a new compact superconductor-based generator. The project aims to provide an important breakthrough in offshore wind industrial solutions by designing an innovative, lightweight, robust and reliable 10 MW class offshore wind turbine based on a superconducting (SC) generator, taking into account all the essential aspects of electric conversion, integration and manufacturability. Todays geared as well as direct-drive permanent magnet generators are difficult to scale up further. Their huge size and weight drives up the cost of both fixed and floating foundations as well as O&M cost. New solutions to provide better power scalability, weight reduction and reliability are needed. Superconductivity may be the only technology able to combine such features and allow scaling to 10 MW and beyond by radical reduction of the head mass. SUPRAPOWER will pursue the following general objectives: To reduce turbine head mass, size and cost of offshore wind turbines by means of a compact superconducting generator. To reduce O&M and transportation costs and increase life cycle using an innovative direct drive system. To increase the reliability and efficiency of high power wind turbines by means of drive-train specific integration in the nacelle. Starting from an already patent-applied concept, the coordinator has assembled a top-class European consortium from 7 countries. Industrial partners are a wind turbine manufacturer, an energy company, an SME superconducting wire developer, a cryogenic systems supplier, and an offshore engineering company. In addition to the coordinator, research partners are a large laboratory with deep experience in superconductivity, a university and a national institute. The main outcome of the project will be a proof of concept for a key European technology to scale wind turbines up to power levels of 10MW and beyond

In a separating wall, which separates a vacuum region from a region under atmospheric pressure, pins are provided as a current lead-through. The pins are cast in, for example, glass. A plug-in contact is arranged on a separate carrier plate in order to prevent force or stresses, which can occur in particular because of tolerances, from being introduced into the glass. The carrier plate is connected to the control device by a flexible cable.

Oerlikon Leybold Vacuum Gmbh | Date: 2010-04-16

In order to provide a simple and energy-efficient rough pumping method for a displacement pump (10), intended to generate a maximum differential pressure (P_(max)) between the inlet (18) and the outlet (20) of the displacement pump (10), the rotational speed () of the displacement pump (10) is adjusted such that the maximum differential pressure (P_(max)) to be generated that the power input (3, 4) of the displacement pump (10) approximates the minimum power (2) physically required for compressing the gas in order to establish the maximum differential pressure (P_(max)).

Oerlikon Leybold Vacuum GmbH | Date: 2014-10-28

A rotor disc for a vacuum pump, in particular a turbo molecular pump, having an inner ring. The inner ring is connected to a plurality of blade elements extending radially outward. The inner ring has at least one expansion joint. For assembly, the inner ring can be surrounded by a retaining ring and arranged on a hollow cylindrical carrier element as applicable.

Oerlikon Leybold Vacuum GmbH | Date: 2014-11-05

A rotor device for a vacuum pump comprises a rotor shaft and at least one rotor element on the rotor shaft. The rotor element contains aluminum, titanium and/or CFRP, while the rotor shaft contains a chromium-nickel steel. This makes it in particular possible to join the at least one rotor element to the rotor shaft at room temperature using a pressing process.

A control method for an acceleration of a vacuum pump, in particular a turbomolecular pump, having an electric motor and a control device in which, in a first acceleration phase, the input current of the control device increases up to a maximum value Is,max and, in a second acceleration phase, the control device is operated at the maximum value Is,max of the input current.

Oerlikon Leybold Vacuum Gmbh | Date: 2013-01-08

A turbomolecular pump has a rotor element in a housing. The rotor element is arranged on a rotor shaft. The rotor shaft is supported by two bearing elements in the housing. The bearing element on the high-vacuum side is constructed as a roller bearing. In order to guarantee a pressure in the area of the bearing element that is acceptable for the bearing element constructed as a roller bearing, the bearing element is arranged in a chamber. The chamber is connected via a channel to the pre-vacuum area and sealed relative to the high-vacuum area by a gasket.

Oerlikon Leybold Vacuum Gmbh | Date: 2015-04-02

A vacuum pump comprises a rotor shaft, which bears one or more rotor elements. The rotor shaft is driven by an electrical driver. A stator is arranged between the rotor elements. The rotor shaft is supported by bearings. The highly heat-generating components such as the driver and the stator are connected to a second housing part in particular by means of a support member. Heat-sensitive components such as the bearing are supported by means of a separate first housing part. The two housing parts can be kept at different temperatures, for example by means of separate cooling devices. Thus, the operating temperature of the in particular pressure-side bearing can be reduced, and therefore the service life can be extended.


A rotary vacuum pump includes a suction chamber (12) in a housing (10). A rotor (14) is eccentrically mounted in the suction chamber (12). Sliding vanes (18) are connected to the rotor (14). Further, a discharge channel (30) is connected to the suction chamber (12) and to an oil chamber (32). A valve (38) is disposed between the discharge channel (30) and the oil chamber (32) in order to prevent the medium from flowing back from the oil chamber (32) into the suction chamber (12). At least one compensating channel (50) is connected to the discharge channel (30) and to the oil chamber (32).

Oerlikon Leybold Vacuum Gmbh | Date: 2014-11-14

A cold head for cryogenic machines comprises a displacer mounted in a working chamber of a housing. The cold head also has a high-pressure connection for supplying highly compressed refrigerant and a low-pressure connection for discharging expanded refrigerant. Also provided is a control valve arrangement for controlling the supply and discharge of refrigerant. According to the invention there is a bypass channel connecting the high-pressure connection to the low-pressure connection.

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