Core Ontology for Petroleum Installations · INF-UFRGS-Ontologies · CNPq INF-UFRGS-ENERGIA inf.ufrgs.br/ontologies/copi dee69df
ISA 5.1 symbol for hydraulic motor
exported necessary
hydraulic motor
IRI: http://www.inf.ufrgs.br/ontologies/copi#Hydraulicmotor
Generated on 2026-04-16
Natural Language Definition
EN
A hydraulic motor is a motor that generates mechanical energy by converting high pressure hydraulic oil to rotational motion.
PT-BR
Um motor hidráulico é um motor que gera energia mecânica convertendo óleo hidráulico de alta pressão em movimento rotacional.
Formal Axioms
Semi-formal (Aristotelian)
Every hydraulic motor is a motor that has hydraulic fluid input and participates in hydraulic-to-mechanical energy conversion process
First-Order Logic Theory
Loading…
▸ Stored override ∀x(HydraulicMotor(x) → Motor(x) ∧ ∃f,p(HydraulicFluid(f) ∧ hasInput(x,f) ∧ HydraulicToMechanicalEnergyConversionProcess(p) ∧ participatesIn(x,p)))
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: HydraulicMotor <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 "2026-10-08"^^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 :COPI_0000574 rdf:type owl:Class ; # MechanicalEnergyGenerationFunction rdfs:subClassOf iof-core:DesignedFunction ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:allValuesFrom :COPI_0000575 # MechanicalEnergyGenerationProcess ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty bfo:BFO_0000054 ; # realizedIn owl:someValuesFrom :COPI_0000575 # MechanicalEnergyGenerationProcess ] ; rdfs:label "mechanical energy generation function"@en ; rdfs:label "função de geração de energia mecânica"@pt-br . ### Process type :COPI_0000575 rdf:type owl:Class ; # MechanicalEnergyGenerationProcess rdfs:subClassOf iof-core:PlannedProcess ; rdfs:label "mechanical energy generation process"@en ; rdfs:label "processo de geração de energia mecânica"@pt-br . :COPI_0000575 # MechanicalEnergyGenerationProcess rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasInput ; owl:someValuesFrom :COPI_0000392 # HydraulicFluid ] ; rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasSpecifiedOutput ; owl:someValuesFrom :COPI_0000392 # HydraulicFluid ] . ### Equipment universal: HydraulicMotor :COPI_0000299 rdf:type owl:Class ; # HydraulicMotor rdfs:subClassOf :COPI_0000315 ; # Motor rdfs:subClassOf [ rdf:type owl:Restriction ; owl:onProperty iof-core:hasFunction ; # Object branch (MaterialArtifact/Assembly/Object/FiatObjectPart) owl:someValuesFrom :COPI_0000574 # MechanicalEnergyGenerationFunction ] ; rdfs:label "hydraulic motor"@en ; rdfs:label "motor hidráulico"@pt-br ; iof-av:naturalLanguageDefinition "A hydraulic motor is a motor that generates mechanical energy by converting high pressure hydraulic oil to rotational motion."@en ; skos:definition "A hydraulic motor is a motor that generates mechanical energy by converting high pressure hydraulic oil to rotational motion."@en ; iof-av:naturalLanguageDefinition "Um motor hidráulico é um motor que gera energia mecânica convertendo óleo hidráulico de alta pressão em movimento rotacional."@pt-br ; iof-av:semiFormalNaturalLanguageAxiom "Every hydraulic motor is a motor that has hydraulic fluid input and participates in hydraulic-to-mechanical energy conversion process"@en ; iof-av:firstOrderLogicAxiom "∀x(HydraulicMotor(x) → Motor(x) ∧ ∃f,p(HydraulicFluid(f) ∧ hasInput(x,f) ∧ HydraulicToMechanicalEnergyConversionProcess(p) ∧ participatesIn(x,p)))"@en ; iof-av:isPrimitive "true"^^xsd:boolean ; iof-av:primitiveRationale "Constructive classification based on hydraulic mechanism. Under Open World Assumption, any device with hydraulic input might be misclassified as a hydraulic motor without domain expert validation of the complete structural requirements."@en ; skos:definition "[ISO 15926-4] A <HYDRAULIC MOTOR> is an <ARTEFACT> and a <MOTOR> and a <HYDRAULIC TO ROTATION ENERGY CONVERTER> that is intended to generate power by means of high pressure oil"@en ; skos:definition "[CFIHOS] A motor that is intended to generate power by means of high pressure oil."@en ; skos:definition "[POSC Caesar] A motor that is intended to generate power by means of high pressure oil."@en . # Disjointness: HydraulicMotor and ElectricMotor [] rdf:type owl:AllDisjointClasses ; owl:members ( :COPI_0000299 :COPI_0000113 ) . # HydraulicMotor, ElectricMotor
Axiomatization Decision Log
1 Identity-Giving Function
Function class
MechanicalEnergyGenerationFunction ⊑ DesignedFunction
Realized in
MechanicalEnergyGenerationProcess ⊑ PlannedProcess
The identity-giving function is the same as any motor - to generate mechanical energy. This function is already established in the enriched 'motor' class.
2 Genus Determination
Motor
The most specific appropriate superclass is 'motor' (already enriched with MechanicalEnergyGenerationFunction). All definitions consistently state this is 'a motor that...' The parent candidates include MOTOR from ISO15926, confirming this genus choice. Motor is more specific than Assembly or MaterialArtifact.
3 Necessary Parts

No necessary parts recorded (concept may be primitive at this level).

These parts define the essential hydraulic-to-mechanical energy conversion interface that every hydraulic motor must possess regardless of internal design variation.
4 Process Participation Signature ⟨I, O, T⟩
Inputs (I)
HydraulicFluid — high pressure oil
Outputs (O)
HydraulicFluid — lower pressure oil
Transformation (T)
hydraulic pressure energy converted to rotational mechanical energy
Hydraulic motors have a distinctive signature of hydraulic fluid input at high pressure, hydraulic fluid output at lower pressure, and rotational mechanical energy output. This differentiates them from other motor types.
5 Axiom Mode Decision

Necessary conditions only — modelled as a primitive universal (⊑, SubClassOf). Identity is grounded in designed function and cannot be reduced to a property checklist.

Constructive classification based on hydraulic mechanism. Under Open World Assumption, any device with hydraulic input might be misclassified as a hydraulic motor without domain expert validation of the complete structural requirements.
Disjointness Axioms
electric motor
C4: electric motor. Process signatures are incompatible: hydraulic motors require hydraulic fluid input while electric motors require electrical energy input and pneumatic motors require compressed air input.
Cross-Standard Observations
All three sources provide consistent definitions emphasizing high pressure oil as the energy source. ISO15926 provides additional hierarchical context by positioning it as both a MOTOR and HYDRAULIC TO ROTATION ENERGY CONVERTER.

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