New High-pressure Axial-piston Unit from Rexroth
Wednesday, November 20, 2013

New benchmark for ultra-low noise emissions: The A15VSO operates up to three 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.

Maritime Reporter September 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds


Search for Ship Lost in Hurricane a Big Challenge

Deep seas may complicate efforts to find the sunken U.S. cargo ship lost off the Bahamas during Hurricane Joaquin, a federal safety investigator said, as a search

Weak Capesize Rates Depress Baltic Index

The Baltic Exchange's main sea freight index, which tracks rates for ships carrying dry bulk commodities, fell on Tuesday on weak demand for capesize vessels. The overall index,

U.S. Investigators Head to Florida to Probe Ship Lost in Hurricane

Federal safety investigators traveled to Florida on Tuesday to investigate the U.S. container ship lost at sea after being hit by powerful Hurricane Joaquin, leaving

Marine Equipment

MacGregor's Deck Machinery for Sentinel Marine ERRV

MacGregor, part of Cargotec, will supply deck machinery for a new 65m emergency rescue & response vessel (ERRV) for Sentinel Marine. The ship has been designed

PCCI to Provide Revised Crane Load Chart

PCCI, Inc. of Alexandria, Virginia, was awarded a contract by the Department of Transportation/U.S. Maritime Administration (MARAD) to provide a new, revised

Towering Damen Marine Components Hits 150‏

Damen Marine Components (DMC), the oldest company in Damen Shipyards Group, celebrates its 150th anniversary today. DMC has grown from a very small shipyard established in Gorinchem in 1865,

Maritime Contracts Maritime Security Pod Propulsion Port Authority Salvage Ship Electronics Ship Repair Shipbuilding / Vessel Construction Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.2045 sec (5 req/sec)