SKF Corporation | Date: 2017-03-15
This radial position sensor aims at measuring the radial position of a rotor (4) within a stator (2), this sensor comprising measuring means (Z1:Z4) for measuring the position of the rotor along a first axis (X) radial to a rotation axis (Z-Z) of the rotor and along a second axis (Y) perpendicular to the first axis. The measuring means include four magnetic poles, among which two poles (Z1, Z3) are diametrically opposed along the first axis (X) and two other poles (Z2, Z4) are diametrically opposed along the second axis (Y), the magnetic poles being distributed, on the inner surface of the stator, with alternating magnetic polarities (N, S) around the entire circumference of the stator. Alternatively, the measuring means include eight magnetic poles that are distributed, on the inner surface of the stator, with alternating magnetic polarities (N, S) around the entire circumference of the stator and that are arranged so that each pole deviates by an angle of approximately 30 from the nearest axis among the first axis (X) and the second axis (Y).
SKF Corporation | Date: 2017-01-11
A heating device for heating a seal having to be placed between rings of a bearing, comprising two longitudinal parts (10, 11) able to be moved relative to each other between a close position in which a longitudinal channel (27) is formed there between for being transverse longitudinally by said seal and an open position in which said seal can be introduced in and removed out of said channel ; and in which at least one of the said longitudinal part carries heating means (43-46) for heating the portion of the seal extending in said channel.
SKF Corporation | Date: 2017-02-22
The roller bearing comprises an inner ring 14, an outer ring 16, and at least one row of oblique contact rollers 18 arranged between bearing races 22, 36 of the rings. Each of the said rings comprises a guide face 26, 40 which is in contact with end faces 18c, 18d of the rollers. The point of intersection of the axis of rotation 18a of each roller of the said row with each guide face 26, 40 of the said rings is situated at an equal distance from inner 26a, 40a and outer 26b, 40b edges of the said guide face.
SKF Corporation | Date: 2017-01-04
The present invention relates to the use of a grease (25) comprising a calcium sulfonate thickener for prolonging bearing life of a bearing (5) that is lubricated with the grease, wherein the bearing is mounted in a machine that is subject to cleaning with a solution comprising a detergent and wherein the calcium sulfonate thickener provides the grease with detergent resistance, such that the grease retains lubricating ability when contaminated with the cleaning solution.
SKF Corporation | Date: 2017-03-01
Bearing comprising at least two rings able to pivot relative to one another, at least one of said rings comprising at least two annular ring parts (7, 8) having annular radial surfaces (11, 12) axially opposite each other, the bearing comprising further: at least one annular shim (13) interposed between said radial surfaces of said annular ring parts and comprising successive circumferential portions, each circumferential portion of said shim having a plurality of nicks (25) respectively traversed by axial elements, the nicks of each circumferential portion of said annular shim being shaped and oriented to permit the positioning between the annular ring parts and the removal of each circumferential portion by radial translation.
Agency: European Commission | Branch: H2020 | Program: IA | Phase: LCE-03-2015 | Award Amount: 13.71M | Year: 2016
The FloTEC project will demonstrate the potential for floating tidal stream turbines to provide low-cost, high-value energy to the European grid mix. The FloTEC project has 5 core objectives: 1. Demonstrate a full-scale prototype floating tidal energy generation system for optimised energy extraction in locally varying tidal resources; 2. Reduce the Levelised Cost of Energy of floating tidal energy from current estimated 250/MWh to 200/MWh, through both CAPEX and OPEX cost reductions in Scotrenewables Tidal Technology; 3. Develop potential of tidal energy generation towards flexible, baseload generation, through the integration of energy storage; 4. Demonstrate the potential for centralised MV power conversion to provide a generic, optimised low-cost solution for tidal arrays; 5. Progress tidal energy towards maturity and standard project financing by reducing cost and risk, improving reliability, and developing an advanced financing plan for first arrays. This will be realised through the construction of a M2-SR2000 2MW turbine - which will incorporate the following innovations: 50% greater energy capture through enlarged rotors with a lower rated speed; Automated steel fabrication; Centralised MV power conversion Integrated Energy Storage Mooring load dampers Composite Blade Manufacturing The SR2000-M2 will be deployed alongside the existing SR2000-M1 at EMEC to form a 4MW floating tidal array, serving as a demonstration platform for commercially viable tidal stream energy as a baseload supply.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: LCE-07-2016-2017 | Award Amount: 3.24M | Year: 2016
Life cycle cost of electricity generated by marine renewable technologies is determined by multiple factors including energy production capability, capital costs, and operating and maintenance (O&M) costs, as well as multiple other logistical, permitting, environmental, and finance cost factors. ORPCs direct experience has been that operating and maintenance costs are dominant in the cost structure. It is clear that for marine renewable energy systems to be commercially viable they must demonstrate exceptionally high reliability and availability. ORPC is now addressing these cost, efficiency and reliability issues in order to achieve commercial status. This Project is a critical next step in commercialization of ORPCs hydrokinetic power system technology for the European market. Ultimate Project goals are to develop a complete power transfer system from prime mover to electrical grid with normal maintenance intervals of greater than five years, and availability of greater than 98%. Intermediate goals are to deliver a system with design maintenance intervals of greater than five years, and availability greater than 96%. The projects primary objectives are listed below: 1. Develop wet gap electrical generator design capable of operating in seawater flooded condition 2. Develop advanced bearings and seal designs for hydrokinetic machines 3. Develop and implement control strategies to maximize power output and power quality for multiple prime mover designs 4. Develop and implement advanced health monitoring system 5. Validate the system design work by integrated full scale lab testing of system 6. Integrate these components into a baseline ORPC hydrokinetic turbine and assess associated economic improvements 7. Disseminate Project results and findings
Agency: European Commission | Branch: H2020 | Program: ECSEL-IA | Phase: ECSEL-18-2015 | Award Amount: 82.27M | Year: 2016
The goal of EnSO is to develop and consolidate a unique European ecosystem in the field of autonomous micro energy sources (AMES) supporting Electronic European industry to develop innovative products, in particular in IoT markets. In summary, EnSO multi-KET objectives are: Objective 1: demonstrate the competitiveness of EnSO energy solutions of the targeted Smart Society, Smart Health, and Smart Energy key applications Objective 2: disseminate EnSO energy solutions to foster the take-up of emerging markets. Objective 3: develop high reliability assembly technologies of shapeable micro batteries, energy harvester and power management building blocks Objective 4: Develop and demonstrate high density, low profile, shapeable, long life time, rechargeable micro battery product family. Objective 5: develop customizable smart recharge and energy harvesting enabling technologies for Autonomous Micro Energy Source AMES. Objective 6: demonstrate EnSO Pilot Line capability and investigate and assess the upscale of AMES manufacturing for competitive very high volume production. EnSO will bring to market innovative energy solutions inducing definitive differentiation to the electronic smart systems. Generic building block technologies will be customizable. EnSO manufacturing challenges will develop high throughput processes. The ENSo ecosystem will involve all the value chain from key materials and tools to many demonstrators in different fields of application. EnSO work scope addresses the market replication, demonstration and technological introduction activities of ECSEL Innovation Action work program. EnSO relates to several of the Strategic Thrusts of ECSEL MASP. EnSO innovations in terms of advanced materials, advanced equipment and multi-physics co-design of heterogeneous smart systems will contribute to the Semiconductor Process, Equipment and Materials thrust. The AMES will be a key enabling technology of Smart Energy key applications.
Agency: European Commission | Branch: H2020 | Program: RIA | Phase: LCE-07-2016-2017 | Award Amount: 4.40M | Year: 2016
In this project we will design, build and test an innovative Direct Drive Power Take-Off (PTO) solution for tidal turbines. The consortiums aim in this project is to reduce the lifetime cost of tidal power by 20%, demonstrated by accelerated life testing of a next-generation tidal turbine power take-off (PTO) solution. Project outputs will be independently verified, and will enable: 1. Improved performance: 20% Lifetime Cost of Energy improvement over a conventional PTO 2. Improved reliability: extending service intervals from less than 1 year to over 2 years 3. Verified survivability: PTO design lifetime greater than 20 years The results will be disseminated and exploited to maximise the benefit of this project to the ocean energy sector, and to raise investor and market confidence in the emerging tidal energy industry. In order to verify the technology, we will conduct accelerated onshore and in-sea testing of a prototype PTO and achieve third party validation of the design and the test results. In parallel we will develop a commercialisation strategy for selling and licensing the product to tidal energy technology developers, and explore potential uses outside the tidal sector, such as wave power and marine propulsion. The project is led by Nova Innovation, a world-leading tidal energy technology and project developer. Project partners are: SKF, Siemens, The University of Edinburgh, Delft Technical University, Wood Group and the Center for Wind Power Drives RWTH Aachen University. This proposal is being submitted to the call LCE-07-2016-2017: Developing the next generation technologies of renewable electricity and heating/cooling, and is perfectly aligned with the scope of the call: to increase the performance and reliability of ocean energy subsystems.
Agency: European Commission | Branch: H2020 | Program: CS2-RIA | Phase: JTI-CS2-2014-CFP01-ENG-03-03 | Award Amount: 2.39M | Year: 2016
The development of Very High Bypass Ratio (VHBR) engines is a promising engine concept to fulfil the major milestones of the Sustainable and Green Engines (SAGE) programme. The significant environmental benefits of this new engine are synonymous with an increased speed and loading capabilities. In terms of engine performance and reliability, the design, sizing and capacities of the rolling element bearings, which are crucial components, can affect the whole engine architecture. The aim of the ARCTIC project is thus: to develop and demonstrate various rolling bearing technologies that overcome the current design rules of aero-engine bearings and allow developing a VHBR engine. The main activity is the development of a new corrosion resistant carburized steel grade with the associated surface technologies. Coupled with ceramic rolling elements, this novel material solution will demonstrate a 15% improvement in rolling contact stress capability and 25% increase in rotation speed if compared to the current baseline solutions and without any detrimental effect on reliability. In parallel, powder metallurgical steel grades will be also developed to assess the potential of this breakthrough technology that will act as building blocks for a 30% increase in contact stress capabilities. To demonstrate their enhanced performances, the proposed new bearing technologies will be tested in nominal and in degraded running conditions (from the elementary scale to the full- scale). In addition, across-the-board action will aim to develop a new contact model to fully justify the experimental outputs: the gained theoretical knowledge will enable the transfer and exploitation of projects results to the industrial field by providing analysis tools and new design rules. The ARCTIC consortium offers high-level engineering capabilities, performance test facilities and manufacturing units necessary to develop a European advanced bearing technology for future VHBR engines.