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xxx 2013-10-09

Quiet Powerhouse - New A15VSO high-pressure axial-piston unit from Rexroth with improved efficiency

Quiet Powerhouse - New A15VSO high-pressure axial-piston unit from Rexroth with improved efficiency

New benchmark for ultra-low noise emissions: The A15VSO operates up to 3 dB(A) quieter than previously available high-pressure axial-piston pumps

Rexroth combines significantly lower noise emissions with further improved efficiency in the new A15VSO axial-piston unit for stationary applications in open circuit operation. It can meet pressure requirements to 420 bar and recovers potential energy during pump/motor operation almost completely. This enables innovative recuperation concepts that can improve the efficiency of machines and systems. Equipped with a universal through drive, the A15VSO seamlessly integrates into the Rexroth line of products and simplifies the process of combining different pumps.

Rexroth developers used state-of-the-art simulation tools in all design stages. The housing structure, optimized for minimum sound emissions, reduces noise considerably. Subsequently, the air borne noise level has been reduced in average by up to 2 dB(A) at full flow operation and up to 3 dB(A) during pressure holding periods (high pressure stand by). In addition, the development engineers shifted the operating noise to a frequency range that is perceived as sonorous and more agreeable by the human ear.

Further design improvements increase the overall efficiency of the axial-piston pump to 93 percent. The swivel range, for example, has been increased to +/- 100 percent to enable complete over center operation and an extremely fast decrease of pressure. In the pump/motor operating mode an almost complete recuperation of potential energy is possible for instance during lowering of a load or braking of a moving mass. This opens up new opportunities for maximizing the energy efficiency of machines and systems, whereby the robust and stable swivel action ensures highly dynamic performance with reduced response times. The first pump size of the A15VSO has a displacement of 280 cubic centimeter at a nominal pressure of 350 bar and a maximum pressure of 420 bar.

The new compact housing, which features an optimized layout of flow channels and better use of installation space, simplifies the process of fitting the pump even in very tight spaces. The universal through drive increases flexibility for customized drive solutions and can easily be used to connect axial-piston, gear, and other hydraulic pumps out of the comprehensive line of Rexroth pumps. Numerous hydraulic and electric controllers (also for remote control operation) enable efficient, highly precise control of power, pressure, and flow as well as load-sensing functions.

About Bosch Rexroth:

Economical, precise, safe, and energy efficient: drive and control technology from Bosch Rexroth moves machines and systems of any size. The company bundles global application experience in the market segments of Mobile Applications, Machinery Applications and Engineering, Factory Automation, and Renewable Energies to develop innovative components as well as tailored system solutions and services. Bosch Rexroth offers its customers hydraulics, electric drives and controls, pneumatics, gear technology, and linear motion and assembly technology all from one source. With locations in over 80 countries, more than 37,500 associates generated sales revenue of approximately 6.5 billion euros ($8.4 billion) in 2012.

To learn more, please visit www.boschrexroth-us.com

About Bosch:

In the U.S., Canada and Mexico, the Bosch Group manufactures and markets automotive original equipment and aftermarket solutions, industrial drives and control technology, power tools, security and communication systems, packaging technology, thermotechnology, household appliances, solar energy, healthcare telemedicine and software solutions. Having established a regional presence in 1906, Bosch employs nearly 24,600 associates in more than 100 locations, with consolidated sales of $10.6 billion in fiscal year 2012. For more information, visit www.boschusa.com , www.bosch.com.mx and www.bosch.ca .

The Bosch Group is a leading global supplier of technology and services. In fiscal 2012, its roughly 306,000 associates generated sales of $67.5 billion. Since the beginning of 2013, its operations have been divided into four business sectors: Automotive Technology, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 360 subsidiaries and regional companies in some 50 countries. If its sales and service partners are included, then Bosch is represented in roughly 150 countries. This worldwide development, manufacturing, and sales network is the foundation for further growth. Bosch spent some $6.1 billion for research and development in 2012, and applied for nearly 4,800 patents worldwide. The Bosch Group’s products and services are designed to fascinate, and to improve the quality of life by providing solutions which are both innovative and beneficial. In this way, the company offers technology worldwide that is “Invented for life.” Additional information is available online at www.bosch.com and www.bosch-press.com .

 

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Contact

Susan  Strauss
City Line Road 2315
18017 Bethlehem, PA
Phone: (610) 694-8352
Fax: (610) 954-8670
susan.strauss@boschrexroth-us.com