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exported necessary COPI_0000302
Impeller
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000302
Generated onGerado em 2026-04-13
Natural Language DefinitionDefinição em Linguagem Natural
EN
An impeller is an assembly consisting of rotating vanes mounted on a hub that transfers energy to or from fluids through dynamic rotational force within an enclosure.
PT-BR
Um impulsor é um conjunto que consiste em pás rotativas montadas em um cubo que transfere energia para ou de fluidos através de força rotacional dinâmica dentro de um invólucro.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every impeller is an assembly that has rotating vanes and a hub as component parts at all times, participates in rotational motion, and bears an energy transfer function.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (Impeller(x) → Assembly(x) ∧ ∃f (EnergyTransferFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: EnergyTransferFunction]∀f (EnergyTransferFunction(f) → ∀p (realizedIn(f,p) → EnergyTransferProcess(p)) ∧ ∃p (EnergyTransferProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (Impeller(x) → ∃hasComponentPartAtAllTimes.RotatingVanes ⊓ ∃hasComponentPartAtAllTimes.Hub ⊓ ∃participatesIn.RotationalMotion ⊓ ∃bearerOf.EnergyTransferFunction) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Necessary part: RotatingVanes]∀x (Impeller(x) → ∃p (RotatingVanes(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((Impeller(x) ∧ EnergyTransferFunction(f) ∧ bearerOf(x,f)) → ∃m (FluidPortion(m) ∧ participatesIn(m,f)) ∧ ∃e (FluidPortion(e) ∧ participatesIn(e,f)) ∧ processType(f,MechanicalPowerTransmission)) — Step 5: typed participants in the realising process
OWL 2 / Turtle
@prefix copi: <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix : <https://www.inf.ufrgs.br/ontologies/copi/> . @prefix owl: <http://www.w3.org/2002/07/owl#> . @prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> . @prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> . @prefix xsd: <http://www.w3.org/2001/XMLSchema#> . @prefix bfo: <http://purl.obolibrary.org/obo/> . @prefix iof-core: <https://spec.industrialontologies.org/ontology/construct/> . @prefix iof-av: <https://spec.industrialontologies.org/ontology/annotation/> . @prefix skos: <http://www.w3.org/2004/02/skos/core#> . @prefix qudt: <http://qudt.org/schema/qudt/> . @prefix dcterms: <http://purl.org/dc/terms/> . @prefix foaf: <http://xmlns.com/foaf/0.1/> . @prefix apv: <http://inf.ufrgs.br/ontologies/apv#> . ### COPI — Core Ontology for Petroleum Installations ### Class module: Impeller <https://www.inf.ufrgs.br/ontologies/copi> rdf:type owl:Ontology ; dcterms:title "Core Ontology for Petroleum Installations (COPI)"@en ; dcterms:title "Ontologia Core para Instalações de Petróleo (COPI)"@pt-br ; dcterms:description "BFO/IOF-Core conformant ontology of equipment classes for petroleum production plants, developed using the five-step RDL enrichment method."@en ; skos:scopeNote "Material artifacts (bfo:material_entity) that (i) are part of a petroleum production plant, and (ii) bear at least one function whose realization involves the transport (e.g. production and injection), processing (separation and other processes), control, monitoring, measurement, containment or offloading of material or energy."@en ; skos:scopeNote "Artefatos materiais (bfo:material_entity) que (i) fazem parte de uma planta de produção de petróleo, e (ii) possuem ao menos uma função cuja realização envolve o transporte (p. ex. produção e injeção), processamento (separação e outros processos), controle, monitoramento, medição, contenção ou escoamento de material ou energia."@pt-br ; skos:scopeNote "COPI provides high-level equipment categories defined by function to demonstrate the defined-class mechanism. Equipment subtypes are annotated with references to CFIHOS and PCA RDL terms. COPI is not a reference data library; organizations should use CFIHOS, PCA RDL, or ISO 14224 for comprehensive equipment classification."@en ; skos:scopeNote "COPI fornece categorias de alto nível de equipamentos definidas por função para demonstrar o mecanismo de classe definida. Os subtipos de equipamentos são anotados com referências aos termos do CFIHOS e do PCA RDL. COPI não é uma biblioteca de dados de referência; organizações devem utilizar o CFIHOS, o PCA RDL ou a ISO 14224 para classificação abrangente de equipamentos."@pt-br ; owl:versionInfo "1.1.0-104-g4d16eff" ; owl:imports <https://spec.industrialontologies.org/ontology/core/Core/> ; owl:imports <http://purl.obolibrary.org/obo/bfo/2020/bfo.owl> ; dcterms:creator "Nicolau Oyhenard dos Santos"@en ; dcterms:contributor "Cauã Antunes" ; dcterms:contributor "Haroldo Rojas" ; dcterms:contributor "Rafael Petry" ; dcterms:contributor "Régis Romeu" ; dcterms:contributor "Mara Abel" ; dcterms:isPartOf <https://inf.ufrgs.br/projetos/OntoKG> ; dcterms:publisher "Universidade Federal do Rio Grande do Sul (UFRGS)"@en ; dcterms:license <https://creativecommons.org/licenses/by/4.0/> ; dcterms:created "2026-04-08"^^xsd:date ; dcterms:modified "2026-07-13"^^xsd:date ; apv:GlobalMinLanguageCoverage "en pt-br" ; apv:ClassURIFormationRule "https://www[.]inf[.]ufrgs[.]br/ontologies/copi/(COPI_[0-9]{7}|[A-Z][A-Za-z0-9]*)" ; apv:ClassMinAnnotationCoverage "rdfs:label https://spec.industrialontologies.org/ontology/annotation/naturalLanguageDefinition" . iof-av:naturalLanguageDefinition rdf:type owl:AnnotationProperty ; apv:MinAnnotationLength 20 . ### Identity-giving function :EnergyTransferFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :EnergyTransferProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :EnergyTransferProcess ] ; rdfs:label "energy transfer function"@en ; rdfs:label "função de transferência de energia"@pt-br . ### Process type :EnergyTransferProcess rdf:type owl:Class ; rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "energy transfer process"@en ; rdfs:label "processo de transferência de energia"@pt-br . :EnergyTransferProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :FluidPortion ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidPortion ] . ### Equipment universal: Impeller :Impeller rdf:type owl:Class ; rdfs:subClassOf iof-core:Assembly ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :EnergyTransferFunction ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :RotatingVanes ] ; rdfs:label "impeller"@en ; rdfs:label "impulsor"@pt-br ; iof-av:naturalLanguageDefinition "An impeller is an assembly consisting of rotating vanes mounted on a hub that transfers energy to or from fluids through dynamic rotational force within an enclosure."@en ; skos:definition "An impeller is an assembly consisting of rotating vanes mounted on a hub that transfers energy to or from fluids through dynamic rotational force within an enclosure."@en ; iof-av:naturalLanguageDefinition "Um impulsor é um conjunto que consiste em pás rotativas montadas em um cubo que transfere energia para ou de fluidos através de força rotacional dinâmica dentro de um invólucro."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every impeller is an assembly that has rotating vanes and a hub as component parts at all times, participates in rotational motion, and bears an energy transfer function."@en ; iof-av:firstOrderLogicAxiom "∀x(Impeller(x) → Assembly(x) ∧ ∃v,h(RotatingVanes(v) ∧ Hub(h) ∧ hasComponentPartAtAllTimes(x,v) ∧ hasComponentPartAtAllTimes(x,h) ∧ ∃m(RotationalMotion(m) ∧ participatesIn(x,m)) ∧ ∃f(EnergyTransferFunction(f) ∧ bearerOf(x,f))))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive classification based on physical mechanism. Under OWA, defining sufficient conditions for the rotating vane assembly could lead to false positives where other rotating equipment with vanes (like turbine rotors or fan assemblies) might be incorrectly classified as impellers when they should remain in their specific equipment categories."@en ; :RotatingVanes rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "palhetas rotativo"@pt-br ; rdfs:label "rotating vanes"@en .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
EnergyTransferFunction ⊑ DesignedFunction
Realized in
EnergyTransferProcess ⊑ PlannedProcess
The identity-giving function is the general energy transfer capability - impellers are designed to transfer energy to or from fluids through dynamic force. This is the fundamental function that makes an impeller an impeller, whether in pumps, compressors, mixers, or turbines.
2 Genus DeterminationDeterminação do Gênero
Assemblybfo:Object (BFO_0000030)
No domain-specific superclass exists in the parent candidates or enriched classes. Impeller is itself a root equipment category with many subtypes (pump impeller, compressor impeller, mixer impeller). It is clearly an assembly of physically connected parts (hub, vanes, potentially shrouds) that form a causally unified whole, making Assembly the appropriate genus.
3 Differentia SpecificaDiferença Específica
∃hasComponentPartAtAllTimes.RotatingVanes ⊓ ∃hasComponentPartAtAllTimes.Hub ⊓ ∃participatesIn.RotationalMotion ⊓ ∃bearerOf.EnergyTransferFunction

Distinguished by having rotating vanes mounted on a hub that transfers energy to or from fluids through dynamic rotational force.

The rotating vanes are the defining structural feature that creates dynamic force for energy transfer. The hub is necessary for mounting and rotation. The rotational motion distinguishes from static mixing or flow devices. The energy transfer function is the generic capability all impellers share.
4 Necessary PartsPartes Necessárias
Part classParentRelation
RotatingVanesMaterialArtifacthasComponentPartAtAllTimes
Hub and rotating vanes are universal components across all impeller types. Shrouds, backing plates, and other components vary by specific impeller design (open, closed, semi-open).
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'any phase - liquid, gas, or multiphase'}
OutputsSaídas
{'type': 'FluidPortion', 'count': 1, 'constraints': 'same fluid with altered energy state'}
TransformationTransformação
mechanical energy transfer to/from fluid through dynamic rotational force
Impellers work with any fluid type and transfer mechanical rotational energy to change the fluid's kinetic and/or pressure energy. The transformation is mechanical-to-fluid energy transfer or vice versa.
MetadataMetadados
COPI IDCOPI IDCOPI_0000302
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000302
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-13
UpdatedAtualizado2026-06-26
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-07-13
Quick factsDados rápidos
GenusGêneroAssembly
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoEnergyTransferFunction
ProcessProcessoEnergyTransferProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 4 sources
ISO 15926-4 IMPELLER
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
DEXPI Impeller
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
SLB Glossary impeller
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.
ONEPETRO_GLOSSARY Impeller
Definition text withheld (copyrighted standard) — follow the source link above.Texto da definição omitido (norma protegida por direitos autorais) — acesse o link da fonte acima.