Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
hydraulic pump
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: function-based → ≡
The concept is defined primarily by its identity-giving function of converting mechanical power into hydraulic energy (hydrostatic energy i.e. flow, pressure) for hydraulic drive systems. While it has a structural constraint (positive displacement mechanism), the function is what makes it a hydraulic pump rather than any other type of pump.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
▸
Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
HydraulicPumpingFunction → HydraulicPumpingProcess ⊑ MomentumTransfer
▼
COPI-Core operation
MomentumTransfer via process parent PumpingProcess
LLM rationale:
The identity-giving function is specifically hydraulic pumping - converting mechanical power into hydraulic energy (flow and pressure) for hydraulic drive systems. This is a specialized subtype of general pumping function that creates the vacuum and pressure differential needed for hydraulic systems.
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Expert review
2
Genus Proximus
✓ done
PositiveDisplacementPump · Assembly
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Genus (genus proximum)
Most specific superclass — may be a domain class like "Valve" or an IOF-Core root.
BFO/IOF-Core Root
bfo:Object branch
bfo:ObjectAggregate branch
bfo:ImmaterialEntity branch
LLM rationale:
ISO 15926 explicitly states 'A HYDRAULIC PUMP is a POSITIVE DISPLACEMENT PUMP used in hydraulic drive systems'. The parent_candidates list shows 'POSITIVE DISPLACEMENT PUMP' as already enriched in our ontology. This is the most specific appropriate superclass rather than the more general 'Pump' class.
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Expert review
3
Differentia Specifica
✓ done
∃bearerOf.HydraulicPumpingFunction ⊓ ∃participatesIn.HydraulicPumpingProcess
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Conditions that distinguish
Hydraulic Pump
from sibling classes under genus
PositiveDisplacementPump.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
The differentia captures the specific application domain (hydraulic drive systems) and the power conversion aspect (mechanical to hydraulic energy) that distinguishes hydraulic pumps from other positive displacement pumps used for general fluid transfer.
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Expert review
4
Necessary Parts
✓ done
SuctionPort, DischargePort
▼
Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts are necessary for the basic hydraulic pumping function - inlet for fluid intake, outlet for pressurized delivery, and casing for containment. The specific displacement mechanism varies by subtype.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
HydraulicFluid → HydraulicFluid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Hydraulic pumps take low-pressure hydraulic fluid and mechanical power as inputs, converting the mechanical energy into hydraulic energy manifested as high-pressure fluid output for hydraulic drive systems.
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Expert review
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Alternative labels
none
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Synonyms / alternative labels (comma-separated) — skos:altLabel
Language auto-detected on export (PT if the label contains accents, EN otherwise).
Properties as BFO qualities
no CFIHOS/DEXPI properties
▼
No CFIHOS/DEXPI properties found for this cluster.
Custom axioms
none
▼
Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Hydraulic Pump.
Write the restriction block in Turtle syntax (without the leading
rdfs:subClassOf).
Example: [ owl:onProperty :hasPart ; owl:someValuesFrom :Wellhead ]
Cross-standard divergences
none detected yet
▼
Click "Detect divergences" to analyse cross-standard disagreements for this cluster.
Source Definitions (2)
HYDRAULIC PUMP — ClassOfInanimatePhysicalObject
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Hydraulic pump
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Provenance tiers (2)
Sources the pipeline cited while building this entry. Verbatim = the quote was copied word-for-word from that source; summary = paraphrased.
OWL/Turtle preview
Download .ttl
Numeric
COPI_* IRIs from copi-iri-map.tsv, with the readable name as a trailing comment. Names not yet in the map stay readable.
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ID 151 · claude-sonnet-4-20250514
Created 2026-04-16 11:49
Updated 2026-09-08 12:26
