STRONG IN THE WIND GREATER SAFETY AND EFFICIENCY FILTER SYSTEMS FOR WIND POWER SYSTEMS

STRONG IN THE WIND GREATER SAFETY AND EFFICIENCY FILTER SYSTEMS FOR WIND POWER SYSTEMS

SYSTEMS PARTNER FOR FILTRATION IN WIND POWER SAFE AND Pitch system Azimuth drive Brake system Gearbox 1 3 4 5 2 6 7 8 1 3 4 5 1 Flange-mounted 2 Spin-on cartridge 3 Air breather 4 MAHLE filter elements 5 Maintenance indicators filter Pi 340 HC 35 Pi 0126

SYSTEMS ECONOMICAL 1 3 4 MAHLE Industriefiltration As an innovative solutions partner, MAHLE Industriefiltration has been producing high-quality industrial filters for many decades for fluid technology, air filtration, and process technology. MAHLE Industriefiltration is an independent service area with its own engineering, production, and sales teams, integrated in the MAHLE Group, one of the 30 largest automotive suppliers in the world. Wind power systems a growing technology for the future Wind power systems make an important global contribution to climate protection. The more efficiently and safely they can run over decades the better their energy balance and profitability. MAHLE Industriefiltration is a capable international systems partner for the market-oriented development of this future technology from development to operation to maintenance reliably meeting high requirements and standards around the world. Technology expertise from a systems supplier MAHLE Industriefiltration is one of the world s largest filter suppliers for on/offshore wind power systems. When it comes to optimizing the entire system toward maximum profit and minimum costs, long service life, high reliability, and environmental friendliness, we provide a technological advance with our extensive systems knowledge in fluid technology. Our complete systems, filtration concepts, and components are used, among others: For oil filtration and cooling in gearboxes e.g., the innovative oil filter module, filters, spin-on cartridges, and filter elements In hydraulic systems for rotor blade adjustment, for azimuth adjustment, and for brake systems e.g., flange-mounted filters and air breathers High-quality filter solutions for greater energy efficiency Innovative filter technology for new systems, on/offshore systems, and re-powering. High reliability, availability, and operational safety. Increased efficiency, service life, system availability, and durability. Minimized downtime, maintenance and service intervals, and maintenance costs. Reduced wear. Weight- and flow-optimized design. Reduced manufacturing and operational costs. 6 Oil filter module Pi 8300 7 Low-pressure 8 2-stage filter element with filter Pi 260 integrated bypass valve

INNOVATIVE FILTER SYSTEMS FOR GREATER EFFICIENCY AND OPERATIONAL Toughest requirements onshore and offshore As a technology partner, we provide high-performance, reliable systems and components for on- and offshore wind power systems covering all megawatt classes. In hydraulic systems and gearbox lubrication as well as oil cooling, they ensure the required oil cleanliness classes (in accordance with ISO 4406) over the long term even under extreme conditions from 40 to +120 C. They hold up under the toughest environmental conditions, and meet requirements for extremely long maintenance intervals. High system availability with the new MAHLE filter concept Together with wind power systems manufacturers, we have developed a new filter concept for safe, low-cost operations. Multistage filter technology reduces contaminants in hydraulic and gearbox oils. This is how MAHLE filter technology helps ensure that modern wind power systems, for example, reach the greatest availability. Oil filter module Pi 8300

SAFETY The new oil filter module for gearboxes and lubrication systems: Pi 8300 compact and ready to connect For gearbox oil maintenance (main and auxiliary flow), and for lubrication systems in wind power systems, MAHLE has developed an innovative, compact oil filter module that permanently increases the cost-effectiveness and durability of the hydraulic and gearbox aggregates. The system consists of a filter block with an electric motor, gear pump, filter housing with a highefficiency 2-stage filter element, pressure-limiting valve, return check valve, and maintenance indicator. It is available in two variants, with volume flow rates of 110 L/min. and 220 L/min. Complete oil filter module In combination with an oil cooler, the oil filter module Pi 8300 ensures optimal filtration and oil cooling in a complete system, for low-wear, easy-to-maintain operation of gearboxes used in wind power systems. For optimal system protection and fast warmup of the gearbox oil: flexible oil return via the pressure-limiting valve to the oil sump, or alternately to the pump s prechamber all in one system. Variable installation options, on the right or left side of the gearbox. Variable connection options: flange or spin-on designs. Connection for oil sampling prepared. Drain options on dirt and clean sides. Connection for bypass filter available, to improve the cleanliness class and extend oil service life no separate pump required. Modular system: the filter surface area can be expanded by retrofitting longer filter housings flexibly on site. Ergonomic cover, which can be opened by hand, for easy maintenance. The return check valve integrated in the filter block also acts as the mount for the filter elements, thereby saving weight. The advantages: less maintenance, greater safety, more profit A compact system with reduced interfaces, and thus fewer potential leaks. Weight-optimized design. High efficiency and minimum power losses due to optimized flow characteristics. Maintenance friendly air venting on the filter block; the bleed line does not need to be removed and replaced during filter element replacement. Low pressure losses due to optimized flow characteristics.

RELIABLE AND C FROM COMPONENTS TO SERVICE High-efficiency gear pump The gear pump, with good suction characteristics and excellent mechanical and volumetric efficiency, runs at very low vibration and noise levels due to its double bearings on the drive shaft. Flow-optimized thermovalve for efficient oil cooling MAHLE has developed an innovative thermovalve for oil cooling: the oil to be cooled flows into the cooler without being diverted a decisive advantage from a flow perspective. Ultimate performance plus energy efficiency: 2-stage filter element with MAHLE Premium Select The 2-stage filter element, with the innovative MAHLE Premium Select filter medium, provides: Up to 30% more dirt-holding capacity compared to standard products Longer service life than conventional filters Lower energy consumption due to lower differential pressure A 2-stage filter element, consisting of a fine filter and a safety filter Guaranteed defined filter retention rates in accordance with ISO 16889 (multipass test) over the entire service life Reliable filtration, even for highly viscous oil In main flow mode, excellent oil cleanliness classes as per ISO 4406/1999 can be achieved using the Pi 8300 oil filter modules and MAHLE Premium Select elements. Flow-optimized thermovalve Consistently higher performance plus longer service life: innovative MAHLE Premium Select filter element with 30% more dirt-holding capacity, lower differential pressure, and an optimized differential pressure profile for reduced energy consumption.

OST-EFFECTIVE Individual filter components upon request: Pi 260, Pi 340, HC 35, and air breathers We also supply individual components for customer-specific wind power systems configurations: for example, Pi 260 series low-pressure filters, with up to 1,000 L/min. volume flow, medium-pressure filters, such as the compact Pi 340 flange-mounted filter for installation on control blocks, compact, low-pressure, spin-on filter cartridges, such as HC 35, or air breathers for oil tanks, such as Pi 0126. requirements, and certified to international standards with worldwide service. Simply consult with our engineers for a customized solution. Greater reliability with maintenance indicator and oil sampling Our maintenance indicators signal when filter elements must be replaced. Our contamination measuring system measures contaminants in order to determine the cleanliness classes of hydraulic oil. This prevents premature wear and resulting damage. 2-stage filter element with integrated bypass valve Expertise from systems consultation and design, to maintenance and service On the basis of our experience with many wellknown wind power projects, we can provide advice with extensive systems expertise for a technically and economically optimized filter design. All of your filter technology comes from a single source, adapted to customer-specific Low-pressure filter Pi 260 Flange-mounted filter Pi 340 Spin-on cartridge HC 35 Air breather Pi 0126 Portable contamination measuring system and sampling case

MAHLE Filtersysteme GmbH Industriefiltration Schleifbachweg 45 D-74613 Öhringen Phone +49 (0) 79 41-67-0 Fax +49 (0) 79 41-67-234 29 industrialfiltration@mahle.com www.mahle-industrialfiltration.com 70521423.04/2010 www.mahle-industrialfiltration.com With the friendly approval of Vestas Wind Systems A/S