Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
eductor
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: structure-based → ⊑
The definitions emphasize the specific mechanism of operation - using a high pressure jet to create partial vacuum via the Venturi effect. While it performs pumping (functional), the identity is given by the jet-eductor mechanism that distinguishes it from other pump types like centrifugal or positive displacement.
Validation status
Why primitive (necessary only)
Reviewer notes
FOL theory & disjointness
First-order logic theory (generated)
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Disjoint with
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Expert review
Axiomatization steps
1
Identity-Giving Function
✓ done
PumpingFunction → PumpingProcess ⊑ MomentumTransfer
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COPI-Core operation
MomentumTransfer via process parent MomentumTransfer
LLM rationale:
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.
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Expert review
2
Genus Proximus
✓ done
Pump · 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 '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.
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Expert review
3
Differentia Specifica
✓ done
∃hasPart.MotiveFluidNozzle ⊓ ∃hasPart.VenturaThroat ⊓ ∃participatesIn.JetEntrainmentProcess
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Conditions that distinguish
Eductor
from sibling classes under genus
Pump.
Only what is not already entailed by the genus.
Differentia expression
Differentia (natural language)
LLM rationale:
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.
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Expert review
4
Necessary Parts
✓ done
SuctionPort
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These four parts constitute the minimal complete eductor assembly that enables the jet entrainment pumping mechanism described in all source definitions.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid + PortionOfLiquid → FluidMixture
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
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.
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Expert review
More
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
0 of 8 selected
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Select which CFIHOS/DEXPI properties inhere in every instance of Eductor as
bfo:Quality subclasses.
Each selected property →
:EductorQuality ⊑ bfo:Quality, inheres in :Eductor
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Eductor.
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.
