Efficient H1 pumps and motors lead the way
1st Quarter 2011
Electrical switching & drive systems & components
With the arrival of the new engine emission and machine safety regulations, design engineers have plenty to consider.
They have to contend with Tier 3 & 4/Euro Stage III & IV as well as the revised European Machinery Directive 2006/42/EC. Sauer-Danfoss is able to help companies through the transition with a range of transmission solutions which speed up system development and qualification, increase overall vehicle efficiency and performance, and reduce installation and life cycle costs.
The H1 family includes both single and tandem pumps, which are now available with embedded SIL 2 certified electronic automotive control (Safety Integrity Level 2 according to IEC 61508). It also includes a growing range of exceptionally efficient bent axis motors.
Improved fuel economy
Test results have shown that at 2000 rpm and 200–300 bar, the H1 bent axis motor has a 6% efficiency gain (equivalent to 5,5 kW) at maximum displacement compared to the nearest comparable product with a lower angle range and fewer pistons. The H1 efficiency was measured against the newest comparable products on the market using the same test stand and equipment as the H1 motor. This translates to improved fuel economy and a reduction in power losses. The gain can be utilised to either increase vehicle productivity or reduce the heat load placed upon the vehicle cooling system.
A 5,5 kW reduction in power loss over 1000 working hours equates to a fuel cost saving of R14 000 a year at current prices and a 3,5 ton reduction in carbon dioxide output. In the case of multiple hydrostatic units in the drive train, for example a typical dual path or multimotor system, operating cost savings can easily reach R45 000 a year.
Maximised vehicle performance
In addition to the efficiency advantages of the H1 bent axis motor, the H1 pump is designed to reduce rotating group, control and charge pump losses.
This also helps to save on fuel consumption and frees up power for other vehicle functions.
“By making hydraulic components more efficient through the reduction of unit power loss in pumps, we are in effect improving overall performance by maximising the transmission performance without compromising other features,” says Branko Horvat, marketing manager for Sauer-Danfoss.
Reduced development time and costs
The H1 AC features robust electronics mounted directly on the pump. The embedded controller incorporates additional watchdog circuitry, which provides real-time fault monitoring of the electronic hardware. Combined with optional software to monitor redundant human machine interface input channels, H1 AC provides single fault tolerance for AC vehicle transmission systems, with programming to bring the pump to a defined safe state in the event of signal loss or interruption.
The H1 AC solution is SIL 2 certified by Technischer Überwachungs-Verein Nord (TUV). This enables OEMs to comply with the new safety legislation and reduces the cost and time required for system qualification and vehicle certification.
Faced with increasingly stringent engine emission regulations and new European safety legislation, OEMs require solutions that can help reduce vehicle emissions, improve safety, enhance fuel economy and increase productivity. The H1 family from Sauer-Danfoss enables them to meet these challenges head on.
For more information contact Ron Sheehan, Sauer-Danfoss Hydraulics, +27 (0)11 803 8390, [email protected], www.danfoss.co.za
Further reading:
Precise detection of complex rotational movements
Beckhoff Automation
Electrical switching & drive systems & components
The EP3751-0260 EtherCAT Box module by Beckhoff connects an acceleration sensor with an inertial measurement unit - a gyroscope. This provides accurate detection of acceleration and rotational motion in addition to shock, vibration and tilt measurement, both as preprocessed values and as raw sensor data.
Read more...
Energy management system for electrohydrostatic actuation systems
Electrical switching & drive systems & components
In the machine manufacturing industry, more drive systems are being converted from servo-hydraulic throttle to electrohydrostatic actuation systems. The four-quadrant capability of the electrohydrostatic pump unit and servo drive used in this technology, in combination with the new Moog energy management system, allows regenerative power flows generated during braking or pressure relief to be stored and reused.
Read more...
Drive solution for stacker reclaimer
Electrical switching & drive systems & components
Hägglunds Drives South Africa recently completed a retrofit project on the bucket wheel of a stacker reclaimer at Richards Bay Coal Terminal. The project entailed replacing a gearbox drive solution with a direct drive solution from Hägglunds Drives SA.
Read more...
Kamoa-Kakula power pack order for SEW-EURODRIVE
SEW-EURODRIVE
Electrical switching & drive systems & components
With well over 100 units already delivered, SEW-EURODRIVE is set to continue supplying Ivanhoe Mines’ prestigious Kamoa-Kakula Copper Complex in the Democratic Republic of Congo.
Read more...
Seven ways to reduce production downtime on the plant
Electrical switching & drive systems & components
Production downtime is one of the biggest risks in the manufacturing industry. Follow these seven tips to reduce machine downtime in your production line.
Read more...
The time is now to implement a motor management strategy
Schneider Electric South Africa
Editor's Choice Electrical switching & drive systems & components
Motor management plays an all-important role in controlling motor energy costs in various industries, segments and applications. Research and practical experience have consistently shown that effective motor management practices can result in significant energy savings, reduced operational costs, and improved overall system reliability.
Read more...
Rapid overhaul of compressor motors
ACTOM
Electrical switching & drive systems & components
Marthinusen & Coutts Zambia was requested by a smelter based in the Copperbelt to provide an in-country repair solution for its two critical 4,5 MW compressor motors. The company was given only three weeks in which to overhaul and commission the motors.
Read more...
PC-based motion control on a labelling machine
Beckhoff Automation
Editor's Choice Electrical switching & drive systems & components
For 50 years, Bausch+Ströbel in Germany has been developing packaging and production systems for the pharmaceutical industries. The company’s goal is to offer the best technical and economical solutions for the challenges of modern industry. Its new ESA1025 labelling machine shows how this is achieved with PC-based control from Beckhoff as the central motion controller.
Read more...
Thrust for hybrid electric flying
Editor's Choice Electrical switching & drive systems & components
Several leading academic institutes in Germany are collaborating on the future of hybrid electric flying. The partners are researching an entirely new propulsion system for medium-range aircraft with up to 35 passengers.
Read more...
Precise knowledge for precise applications
Electrical switching & drive systems & components
Aerotech has been supplying standard product solutions such as motors, drives, controls and positioning tables since 1970. Customised motion subsystems include positioning systems on granite structures with undercarriage and vibration isolation, and also external measurement systems.
Read more...
printer friendly version