ISO 18170-2017 PDF

Full title and description

Aerospace series — AC induction electric motor driven, variable delivery, hydraulic pumps — General requirements. This International Standard specifies general requirements for AC induction electric motor driven, variable-delivery hydraulic pumps intended for use in aircraft hydraulic systems, and is intended to be used alongside detailed application-specific specifications.

Abstract

ISO 18170:2017 establishes the general technical, electrical and hydraulic requirements, environmental and test conditions, documentation and marking expectations for AC induction electric motor powered variable-delivery hydraulic pump units for aircraft. The standard covers units designed for either constant-frequency (CF) or variable-frequency (VF) AC power supplies and is intended to be used with a more detailed specification specific to each application.

General information

• Status: Published.
• Publication date: 2017 (Edition 1, published April 2017).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 49.080 (Aerospace engineering).
• Edition / version: Edition 1 (2017).
• Number of pages: 54 (ISO published page count).

Scope

Specifies general requirements for AC induction electric motor driven, variable-delivery hydraulic pumps suitable for aircraft hydraulic systems. The scope includes electrical interface options (constant-frequency or variable-frequency AC supplies), mechanical and hydraulic performance characteristics, environmental and endurance requirements, testing and acceptance criteria, documentation and marking. It is not a detail design specification and is intended to be used in conjunction with a purchaser's or application-specific detailed specification.

Key topics and requirements

• General technical requirements for AC induction motor driven, variable-delivery hydraulic pumps.
• Supported electrical supply modes: constant-frequency (CF) and variable-frequency (VF) AC power characteristics and interfaces.
• Hydraulic performance parameters (delivery range, pressure ratings, control characteristics) and expected operating envelopes.
• Environmental, vibration and endurance testing requirements relevant to aerospace applications.
• Safety, failure-mode considerations and compatibility with aircraft hydraulic fluids.
• Marking, documentation and information to be supplied with the unit (drawings, test reports, limitations and installation data).

Typical use and users

Used by aerospace OEMs, hydraulic-system designers, component manufacturers and suppliers, procurement and quality assurance teams, and certification authorities to define baseline requirements for AC induction motor driven variable-delivery pumps intended for aircraft. Also referenced in procurement specifications and technical contracts where a general, class-level standard is required alongside application-specific detail.

Related standards

ISO 18170:2017 is part of the aerospace standards family managed by ISO/TC 20/SC 10 and is often used alongside other aerospace and hydraulic component standards (examples of related documents include standards addressing aircraft electrical systems, fluid system classifications, marking and coupling dimensions). Example related references cited in product literature and catalogs include ISO 1540, ISO 6771 and other aerospace hydraulic/component standards.

Keywords

AC induction motor; variable delivery; hydraulic pump; aircraft hydraulic systems; aerospace series; constant-frequency (CF); variable-frequency (VF); ISO 18170; hydraulic unit requirements.

FAQ

Q: What is this standard?

A: ISO 18170:2017 is an International Standard that specifies general requirements for AC induction electric motor driven, variable-delivery hydraulic pumps intended for use in aircraft hydraulic systems.

Q: What does it cover?

A: It covers general technical, electrical and hydraulic requirements, environmental and test conditions, documentation and marking for such pump units; it is intended to be used with more detailed, application-specific specifications.

Q: Who typically uses it?

A: Aerospace OEMs, system and component designers, suppliers of hydraulic pumps and actuators, procurement and QA teams, and certification/regulatory bodies use this standard when defining or assessing hydraulic pump units for aircraft.

Q: Is it current or superseded?

A: As published in 2017 (Edition 1) the standard is published and in ISO’s lifecycle; it was published in 2017 and, like other ISO standards, is subject to periodic review (typically every five years). Users should check the ISO catalogue or national standards bodies for any revision or withdrawal after 2017.

Q: Is it part of a series?

A: Yes — it is part of the ISO aerospace series and falls under the work of ISO/TC 20/SC 10 (aerospace fluid systems and components). It is a general-requirements document intended to be complemented by application- or supplier-specific detail specifications.

Q: What are the key keywords?

A: AC induction motor, variable-delivery pump, hydraulic pump, aircraft hydraulic system, aerospace series, constant-frequency, variable-frequency, ISO 18170.