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.
|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|
|User guide||Digital Displacement Pump DDP Technical Information||English||Multiple||02 Feb, 2020||6.7 MB|
|Data sheet||Digital Displacement Pump DDP096 and DPC12 Data Sheet||English||Multiple||02 Feb, 2020||1.5 MB|
ConstructionSpace 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.
ForestryRough, 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.
Digital Displacement paves the way for an off-highway revolutionThursday, November 5, 2020From lab to market: Danfoss Digital Displacement technology is now being launched to cut fuel consumption in excavators by staggering numbers. This will have a global impact as we can save 40 million tons of CO2 – the energy use of 4.6 million homes for one year – by reducing waste heat in excavators.