Digital Displacement® pump technology
Most hydraulic machines today have the same basic control mechanism that was first patented in 1893. The variable-angle swash plate pump has been a reliable way to transmit fluid power for over 120 years. Efforts have been made to digitize the mechanism with feedback and electronic control, but the underlying principle has limited benefits.
Our Digital Displacement® pump technology is a natively digital hydraulic innovation. It utilizes a radial piston machine which enables and disables cylinders in real time, using ultra-fast mechatronic valves.
The intelligent, digital controls mean a digitally-enabled machine is highly controllable and extremely efficient. The net result is:
Dramatically lower energy losses (typically less than a third of swash-plate machines)
Dramatically faster response (typically ten times faster)
Reduction of annoying, high-frequency noise
Digital Displacement® hydraulics
Our unique Digital displacement hydraulics is suitable for diesel, hybrid and fully electric off-highway machines.
Individual cylinders are only called into action when required to meet the load demanded, resulting in a pump with efficiency over 90 percent. The control of individual cylinders allows a single pump to have multiple independently-controllable services providing system innovators a platform to invent new architectures to unlock the capabilities of digital hydraulics.
By replacing a mechanical or hydraulic device with one which is electronically and digitally controlled, new possibilities of flow metering, response, system control, diagnostics (self-healing) and automation are now possible. The pump is able to create real time data for live streaming via telematics.
Danfoss advanced off-road demonstrators are showing radical improvements in efficiency and controllability. In multiple field tests, the original axial piston pump was replaced by a Digital Displacement® pump as a simple pump upgrade. Benchmarking to a conventional 16-tonne excavator, fuel consumption on a standard work cycle was reduced between 16 and 21 percent, whilst at the same time, productivity was increased by 28 percent.
At Danfoss Digital Displacement we aim to make the complex, simple, to re-imagine your machine to be optimized and differentiated unlike any on the market. Owned by Danfoss and developed in Scotland over the last 25 years, digital hydraulic technology delivers productivity, response and efficiency that cannot be replicated elsewhere in the market.
Documents
| Type | Name | Language | Valid for | Updated | Download | File type |
|---|---|---|---|---|---|---|
| White paper | Digital Displacement Efficiency Whitepaper | English | Multiple | 29 Sep, 2019 | 727.0 KB | |
| White paper | Digital Displacement Excavator Test and Analysis | English | Multiple | 29 Sep, 2019 | 435.4 KB | |
| Data sheet | Digital Displacement® Pump DDP96 and DPC12 (Off-Road Version) | English | Multiple | 06 Feb, 2020 | 2.7 MB |
Related products
We have the displacement, configuration and control option to suit your specific application.
Danfoss open circuit axial piston pumps are available in a wide range of displacements, from 25cc to 147cc with continuous pressures up to 310 bar, to fit a broad variety of applications and needs.
Our gear pumps are robust and reliable. They are the ideal choice for a wide range of applications. From small to medium and large off-highway vehicles, as well as for industrial applications.
Related applications
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AgricultureFarmers need agricultural machines that deliver the same high productivity every season. Hydraulic solutions from Danfoss ensure world-class performance from each machine, and a comfortable, stress-free working environment for their operators.
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Construction
Space is limited on construction sites, and there are people working everywhere. Contractors need machines that can safely maneuver in a tight spot. At the same time they still need to be powerful enough to get the job done. At Danfoss, we deliver the components, software, and controls that enable your machines to run safely, efficiently and effectively.
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Crane and material handling
Cranes and other large handling machines are required to operate within very specific load ranges. Danfoss provides pressure transmitters that supply load limiting systems with crucial data, safeguarding your equipment, your load, and your operator.
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Forestry
Rough, sloping terrain and cramped working conditions call for robust and reliable forestry machines. We make sure you can manage everything from cutting trees and transport to preparing the forest floor for replanting. We have the smart hydraulic solutions your machines need for precise and efficient forestry operations.
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Heavy machinery
Think about the heaviest challenges in the open mining, road building and construction industry. Tasks such as cutting through rock or the Arctic permafrost; compacting thick layers of hot asphalt. As well as lifting huge, prefabricated wall panels into place.
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Road building
Advanced hydraulic systems from Danfoss deliver the machine performance that ensures road builders can meet their deadlines.
Related solutions
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Digital Displacement® hydraulics
A new generation of digital hydraulic pumps and motors will deliver productivity and efficiency in customer machines that no competitor can match.
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Pressure and temperature monitoring
Pressure and temperature monitoring sensors, transmitters, electronic pressure switches and solenoid valves recommended for hydraulic applications.
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Propel
We can partner with you to design and implement hydrostatic drive solutions. That provide operators with machines that are easier to maneuver. We are committed to helping you provide a more profitable investment for your customers.
News
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Quality at the core of new digital displacement assembly facilityMonday, January 20, 2020
We developed a new manufacturing research and development facility near Edinburgh in Scotland, which ensures greater quality of every pump produced.
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Building low-carbon global manufacturing facility in ScotlandFriday, November 9, 2018
Global player Danfoss Power Solutions to invest £millions in Scotland to build low-carbon global manufacturing facility.
