Overview
ISO 7967-4:2005 is an international vocabulary standard that defines terms related to pressure charging and air/exhaust gas ducting systems for reciprocating internal combustion engines. Published as Part 4 of the ISO 7967 series, this second edition (2005) updates and consolidates terminology for turbochargers, charge-air systems, inlet/exhaust ducting, and associated components. The document is bilingual (English/French) and intended to ensure consistent technical language across design, manufacturing, documentation and regulatory activities.
Key topics
The standard organizes and standardizes terminology across the following technical areas:
- Turbocharger types (e.g., single-stage, two-stage, variable-geometry, engine-coupled)
- Turbocharger components and rotor/turbine/compressor parts
- Turbine types and turbine/compressor component names
- Types of pressure chargers and their classification
- Air inlet pipes, exhaust pipes and manifolds - ducting terminology
- Air filtration systems, silencers and exhaust gas cleaners
- Charge air coolers and related heat-exchange components
- Alphabetical indexes in English and French for quick lookup
Normative references include ISO 2710 (vocabulary/classification of reciprocating engines) and related parts of ISO 7967 (for example, Part 5 on cooling systems). The standard sets out precise definitions rather than performance limits; it standardizes naming conventions and cross-references to other ISO vocabulary parts.
Applications
ISO 7967-4:2005 is used where consistent terminology for pressure-charged and ducted engine systems is critical:
- Technical documentation, service manuals, parts catalogs and OEM specifications
- Engineering drawings and CAD models to avoid ambiguity in component names
- Procurement and supply-chain communication for turbochargers, charge-air coolers, silencers and ducting
- Regulatory, compliance and certification reports that reference defined terms
- Training materials, classroom instruction and industry publications (reproduction of definitions permitted for educational/implementation use under ISO conditions)
Who will use this standard
- Engine designers and system engineers working on turbocharging and intake/exhaust systems
- Technical writers, illustrators and documentation teams preparing manuals and catalogs
- OEMs, suppliers and maintenance organizations involved in pressure-charged engines
- Standards committees, test laboratories and regulators requiring harmonized terminology
Related standards
- ISO 7967 series (Parts 1–9) - broader vocabulary for reciprocating internal combustion engines
- ISO 2710 - classification and basic terms for reciprocating internal combustion engines
- ISO 7967-5 - Cooling systems vocabulary (cross-referenced in Part 4)
Keywords: ISO 7967-4, pressure charging, turbocharger vocabulary, charge air cooler, air/exhaust ducting, reciprocating internal combustion engines, turbocharger components.