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exported necessary COPI_0000259
Eductor
IRI: https://www.inf.ufrgs.br/ontologies/copi/COPI_0000259
Generated onGerado em 2026-04-16
Natural Language DefinitionDefinição em Linguagem Natural
EN
An eductor is a pump that uses a high-pressure motive fluid jet to create a low-pressure zone that entrains and moves a second fluid via momentum transfer.
PT-BR
Um edutor é uma bomba que usa um jato de fluido motriz de alta pressão para criar uma zona de baixa pressão que arrasta e move um segundo fluido via transferência de momento.
Formal AxiomsAxiomas Formais
Semi-formal (Aristotelian)Semi-formal (Aristotélico)
Every eductor is a pump that has a motive fluid nozzle and Ventura throat as component parts and participates in a jet entrainment process.
First-Order Logic TheoryTeoria em Lógica de Primeira Ordem
[Necessary condition]∀x (Eductor(x) → Pump(x) ∧ ∃f (PumpingFunction(f) ∧ bearerOf(x,f))) — Steps 1–3: genus + identity-giving function [Function axiom: PumpingFunction]∀f (PumpingFunction(f) → ∀p (realizedIn(f,p) → PumpingProcess(p)) ∧ ∃p (PumpingProcess(p) ∧ realizedIn(f,p))) — Step 1: ∀ preserves type-type identity; ∃ rules out vacuous functions never realised [Structural differentia (necessary only)]∀x (Eductor(x) → ∃hasPart.MotiveFluidNozzle ⊓ ∃hasPart.VenturaThroat ⊓ ∃participatesIn.JetEntrainmentProcess) — Step 3: structural property — necessary condition, not sufficient (OWA prevents ≡) [Necessary part: SuctionPort]∀x (Eductor(x) → ∃p (SuctionPort(p) ∧ hasComponentPartAtAllTimes(x,p))) — Step 4: mereological commitment — every instance must have this part [Process participation signature]∀x ∀f ((Eductor(x) ∧ PumpingFunction(f) ∧ bearerOf(x,f)) → ∃m1 (PortionOfFluid(m1) ∧ participatesIn(m1,f)) ∧ ∃m2 (PortionOfLiquid(m2) ∧ participatesIn(m2,f)) ∧ ∃e (FluidMixture(e) ∧ participatesIn(e,f)) ∧ processType(f,PressureIncrease)) — 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: Eductor <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" ; 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 "2026-10-07"^^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 :PumpingFunction rdf:type owl:Class ; rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :PumpingProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :PumpingProcess ] ; rdfs:label "pumping function"@en ; rdfs:label "função de bombeamento"@pt-br . ### Process type :PumpingProcess rdf:type owl:Class ; rdfs:subClassOf :MomentumTransfer ; rdfs:label "pumping process"@en ; rdfs:label "processo de bombeamento"@pt-br . :MomentumTransfer rdf:type owl:Class . :PumpingProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PortionOfFluid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :PortionOfLiquid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :FluidMixture ] . ### Equipment universal: Eductor :Eductor rdf:type owl:Class ; rdfs:subClassOf :Pump ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :PumpingFunction ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasComponentPartAtAllTimes ; owl:someValuesFrom :SuctionPort ] ; rdfs:label "eductor"@en ; rdfs:label "edutor"@pt-br ; iof-av:naturalLanguageDefinition "An eductor is a pump that uses a high-pressure motive fluid jet to create a low-pressure zone that entrains and moves a second fluid via momentum transfer."@en ; skos:definition "An eductor is a pump that uses a high-pressure motive fluid jet to create a low-pressure zone that entrains and moves a second fluid via momentum transfer."@en ; iof-av:naturalLanguageDefinition "Um edutor é uma bomba que usa um jato de fluido motriz de alta pressão para criar uma zona de baixa pressão que arrasta e move um segundo fluido via transferência de momento."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every eductor is a pump that has a motive fluid nozzle and Ventura throat as component parts and participates in a jet entrainment process."@en ; iof-av:firstOrderLogicAxiom "∀x(Eductor(x) → Pump(x) ∧ ∃n(MotiveFluidNozzle(n) ∧ hasComponentPartAtAllTimes(x,n)) ∧ ∃t(VenturaThroat(t) ∧ hasComponentPartAtAllTimes(x,t)) ∧ ∃p(JetEntrainmentProcess(p) ∧ participatesIn(x,p)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "The constructive differentia based on jet entrainment mechanism could potentially apply to hybrid or specialized equipment that incorporates eductor principles but should not be automatically classified as a standard eductor type. Under OWA, necessary conditions protect against false positive classifications."@en ; :SuctionPort rdf:type owl:Class ; rdfs:subClassOf iof-core:MaterialArtifact ; rdfs:label "bocal de sucção"@pt-br ; rdfs:label "suction port"@en . # Disjointness: Eductor and CentrifugalPump [] rdf:type owl:AllDisjointClasses ; owl:members ( :Eductor :CentrifugalPump ) . # Disjointness: Eductor and PositiveDisplacementPump [] rdf:type owl:AllDisjointClasses ; owl:members ( :Eductor :PositiveDisplacementPump ) .
Axiomatization Decision LogRegistro de Decisões
1 Identity-Giving FunctionFunção Identitária
Function class
PumpingFunction ⊑ DesignedFunction
Realized in
PumpingProcess ⊑ MomentumTransfer
All sources identify eductor as a type of pump that moves fluids. The generic PumpingFunction already exists in the enriched classes and captures the fundamental fluid-moving purpose shared with other pump types.
2 Genus DeterminationDeterminação do Gênero
Pumpbfo:Object (BFO_0000030)
ISO 15926 explicitly states 'EDUCTOR is a PUMP'. The parent candidates include PUMP which is already enriched in our ontology. Pump is the most specific appropriate superclass - more specific than the generic Assembly but captures the shared pumping function with other pump types.
3 Differentia SpecificaDiferença Específica
∃hasPart.MotiveFluidNozzle ⊓ ∃hasPart.VenturaThroat ⊓ ∃participatesIn.JetEntrainmentProcess

Has a motive fluid nozzle and Ventura throat, and participates in a jet entrainment process where high-pressure motive fluid creates suction to entrain the pumped fluid.

The differentia captures the unique jet-based mechanism that distinguishes eductors from all other pump types. The motive fluid nozzle creates the high-pressure jet, the Ventura throat creates the low-pressure zone, and the jet entrainment process describes the specific fluid dynamics that enable pumping without rotating or reciprocating parts.
4 Necessary PartsPartes Necessárias
Part classParentRelation
SuctionPortMaterialArtifacthasComponentPartAtAllTimes
These four parts constitute the minimal complete eductor assembly that enables the jet entrainment pumping mechanism described in all source definitions.
Process Participation SignatureAssinatura de Participação em Processo
InputsEntradas
{'type': 'PortionOfFluid', 'count': 1, 'constraints': 'motive fluid, typically water'}, {'type': 'PortionOfLiquid', 'count': 1, 'constraints': 'pumped fluid from sump or low-pressure source'}
OutputsSaídas
{'type': 'FluidMixture', 'count': 1, 'constraints': 'combined motive and pumped fluids at intermediate pressure'}
TransformationTransformação
momentum transfer from high-pressure motive fluid to low-pressure pumped fluid via jet entrainment
Eductors require two distinct fluid inputs (motive and pumped) and produce a single mixed output, distinguishing them from single-input pumps like centrifugal or positive displacement types.
Disjoint WithDisjunto com
CentrifugalPump PositiveDisplacementPump
C1: CentrifugalPump, PositiveDisplacementPump. Incompatible pumping mechanisms - jet entrainment cannot simultaneously operate via rotating impeller or volumetric displacement principles
MetadataMetadados
COPI IDCOPI IDCOPI_0000259
IRIIRIhttps://www.inf.ufrgs.br/ontologies/copi/COPI_0000259
StatusStatusexported
Axiom modeModonecessary
CreatedCriado2026-04-16
UpdatedAtualizado2026-09-08
LLM modelModelo LLMclaude-sonnet-4-20250514
VersionVersão2026-10-07
Quick factsDados rápidos
GenusGêneroPump
Root classClasse raizAssembly
Axiom modeModonecessary
FunctionFunçãoPumpingFunction
ProcessProcessoPumpingProcess
PartsPartes1
Source DefinitionsDefinições nas Fontes 3 sources
ISO 15926-4 EDUCTOR
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.
CFIHOS eductor
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 Eductor
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.
Provenance tiersCamadas de proveniência
primarystandardverbatimiso15926
An <EDUCTOR> is an <ARTEFACT> and a <PUMP> that is a form of suction pump; a device using a high pressure jet of water to create partial vacuum at an intake opening to draw liquid from a sump
secondarystandardverbatimcfihos
A form of suction pump; a device using a high pressure jet of water to create partial vacuum at an intake opening to draw liquid from a sump.
secondarystandardverbatimonepetro_glossary
A device that through flow of a power fluid through a nozzle, creates a low pressure area useful for moving fluids.

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