ISO/TR 22164:2020

TECHNICAL ISO/TR
REPORT 22164
First edition
2020-02
Hydraulic fluid power — Application
notes for the optimization of the
energy efficiency of hydraulic systems
Reference number
©
ISO 2020
© ISO 2020
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ii © ISO 2020 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Goal and principal design considerations. 1
5 Measures . 1
5.1 General . 1
5.2 Principal measures . 1
5.3 Measures concerning actuators . 2
5.4 Measures concerning the hydraulic power supply system . 3
5.5 Measures concerning the hydraulic distribution system . 3
Bibliography . 5
Foreword
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This document was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee
SC 9, Installations and systems.
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iv © ISO 2020 – All rights reserved

Introduction
Energy consumption of machines is primarily defined by the type of machine, e.g. lathes, injection
moulding machines and excavators.
Additionally, the level of energy consumption is a function of the requirements of the machine
manufacturer and duty cycle and frequency of use by the operator. It is only when the machines are
adapted for specific applications (e.g. working cycle, control precision, level of automation) in an optimal
manner, that energy efficiency concepts can have a positive impact.
Typical applications for hydraulics in machines are:
— clamping with high force;
— pressing with high force;
— motion, acceleration and braking of heavy loads;
— hydraulic weight compensation;
— hydrostatic transmission.
TECHNICAL REPORT ISO/TR 22164:2020(E)
Hydraulic fluid power — Application notes for the
optimization of the energy efficiency of hydraulic systems
1 Scope
This document gives advice on how to conceive hydraulic systems that can be operated with increased
energy efficiency while maintaining the intended functionality of the machine.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 5598, Fluid power systems and components — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5598 apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at https:// www .iso .org/ obp
4 Goal and principal design considerations
The goal is to reduce the energy consumption for specific functions considering the demand of power
input (effective, reactive and peak) of a hydraulic system and related auxiliary systems.
The more precisely the requirements and characteristics of the machine operation and duty cycle are
identified, the more energy efficiently
...