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MDA Technologies 5/2016

MDA Technologies 5/2016

02 ContiTech’s new,

02 ContiTech’s new, extremely flexible and high-temperature hose with external reinforcement 01 Christof Kirsch, Head of R&D and Product Engineering, Engine Drivetrain of ContiTech Mobile Fluid Systems In combination with the tyre pressure monitoring system, the solution facilitates the efficient management of vehicle fleets. On a central server, information is collected, made available, and then transmitted. The system informs the user when the tyre pressure has to be corrected, for example. Vehicle downtimes are thus reduced as the danger of tyre damage is minimized, and the outlay for regular, time-consuming maintenance work is lessened. The right choice of tyre also makes a significant contribution to vehicle safety. Continental has a comprehensive range of pneumatic and solid tyres for various areas of application. Heavy devices such as pickups, road construction equipment and tractors also move safely on rubber tracks. In addition, integrated and retrofit-able camera systems enable 360-degree monitoring of the vehicles. Products equipped with vibration isolation and noise reduction dampen the vibrations and structure-borne noise, isolates machinery oscillations and noticeably increase riding comfort. Components can be safely lifted, powered, and controlled using high-pressure hydraulic hoses. Electrically conductive fuel hoses ensure a reliable media supply. Improving work and transportation efficiency With its wide variety of instrumentation solutions that range from the dial-type gauge to the fully programmable 12-inch terminal, Continental’s components and systems for construction, agriculture, and material handling equipment Continental is following the trend toward connected vehicles that make drivers’ lives considerably easier by displaying information clearly. The display and terminal solutions improve everyday working life, from maneuvering on the construction site to the targeted management of agricultural areas. An on-board telematics unit transmits data from and to the vehicle. This sees Continental play a supporting role in saving time and making work more efficient. Furthermore, when it comes to machinery leasing, data about the duration and place of use can be stored for billing purposes. Low on emission, high on comfort To ensure low emissions, manufacturers are using high-activity catalytic converters and efficient SCR systems. To meet the high legal requirements in the future as well, Continental offers emission-relevant modules of the engine and exhaust system control unit, fuel injection technology, sensors, SCR systems and injectors, catalytic converters, filters, tanks, and hoses, and obviously software and engineering support. From 2019 onwards, additional particulate filters, combination filters with an SCR coating to remove the nitrogen oxide, will be provided for this purpose for Stage 5 of exhaust system cleaning as applicable for engines from 130 to 560 kW. Whether in construction or agricultural machines or cranes, manufacturers are equipping the cabins of their vehicles and machines with increasingly high-quality fittings and placing a growing emphasis on the highest possible level of comfort. The modular design of Continental’s driver workstation ensures an extremely flexible, user-friendly workstation with fittings that can be adapted for numerous applications and customer requirements. All switches are positioned within reach, while overhead switches can also be replaced by additional panels, if required. The cockpit fittings can therefore be as minimalist or as high-end as desired. Sleeve air springs also increase comfort in the driver’s seat. Surface materials for the interior of off-highway vehicles withstand the tough conditions of an average working day on a construction site or agricultural land. Particularly scratch-resistant materials and products with easy-to-clean soft-touch surfaces are available. The uniform ‘One Continental’ presence allows the company to draw attention to its overall portfolio. Now the customers have all the contacts for various applications in one place and can gain a clear overview of the broad range of products, extending from basic technologies to advanced solutions. Photographs: ContiTech, Continental www.contitech.de/index_en.html MDA Technologies 5/2016

Diffusers to the rescue MACHINE ELEMENTS For operational issues like fluid aeration, foaming and noise arising in the hydraulic systems, hydraulic accessories like diffusers, return line filters and breathers offer simplistic yet effective solutions. About Stauff The company Walter Stauffenberg Co & KG, located in Werdohl in Germany‘s Sauerland region, is now an internationally leading developer, manufacturer and supplier of hydraulic systems and components, pipework equipment under the brand name Stauff. The company has a comprehensive range of products which includes clamps, filtration technology, diagtronics, hydraulic accessories, valves and tube fittings. Hydraulic accessories includes fluid level and temperature indicators, tank filler breathers, suction line accessories and filter line accessories, pipe tube and hose cleaning systems. Stauff is represented by a tight network of distributors and wholly-owned manufacturing facilities, distribution bases and warehouses in 18 countries worldwide. One of the basic pre-requisites for the smooth operation of hydraulic systems is the selection of a well-designed hydraulic reservoir based on the application requirements. Traditionally the function of the hydraulic reservoir is to supply the system with sufficient fluid at specified pressures that vary according to the system’s needs. Today’s reservoirs are much more than just storage tanks for pressurized fluid, as they designed also to provide a surface area for transfer of heat from the fluid to the surrounding environment. The size of the reservoir is designed by also considering the volume required to let the returning fluid slowdown from a high entrance velocity. This also lets the heavier contaminants settle and the entrained air to escape. An ideally sized reservoir provides a considerable air space above the fluid to accept the air that bubbles out of the fluid, space for hot-fluid expansion, gravity drain-back from a system during shutdown, and storage of large volumes needed intermittently during peak periods of an operating cycle. A physical barrier or a baffle is provided to separate the fluid entering the reservoir from the pump suction line. While designing the hydraulic reservoir an access to remove used fluid and contaminants from the system and to add new fluid is also thought about. While designing, suitable measures such as filler breathers and sufficient tank pressurisation are also taken to prevent solids, water and air from entering the system, contaminating the oil and affecting the function of sensitive components, which quite often results in expensive downtimes and unplanned oil changes. Undesirable foaming Another factor that should not be underestimated is surface foaming which can form through uncontrolled return flow of hydraulic oil from the return line into the tank. Foam is a collection of small MDA Technologies 5/2016

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