Digital Displacement® pumps

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Digital Displacement® 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® 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

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® HYDRAULIC HYBRIDS English Multiple 08 Jan, 2020 407.2 KB .pdf
White paper Optimal System Solutions Enabled by Digital Pumps English Multiple 08 Jan, 2020 1.0 MB .pdf

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News

  • Quality at the core of new digital displacement assembly facility
    Quality at the core of new digital displacement assembly facility
    Monday, January 20, 2020

    We developed a new manufacturing research and development facility near Edinburgh in Scotland, which ensures greater quality of every pump produced.

  • Digital Displacement pumps
    The new generation of Digital Displacement pumps
    Wednesday, September 4, 2019

    A new generation of Digital Displacement® pumps being developed in the UK for off-highway machines to make them use less fuel in the future. 

  • Low-carbon global manufacturing facility for Artemis technology
    Building low-carbon global manufacturing facility in Scotland
    Friday, November 9, 2018

    Global player Danfoss Power Solutions to invest £millions in Scotland to build low-carbon global manufacturing facility.