Definition & axiom
⚠ Conflicts with the ISO 15926-4 primary definition
Label (EN)
rotary pump
Label (PT-BR)
Definition (EN)
Definition (PT-BR)
Semi-formal axiom (Aristotelian)
Axiom type
LLM classification basis: structure-based → ⊑
The identity of a rotary pump is fundamentally defined by its physical mechanism — a chamber containing gears, cams, screws, vanes, plungers or similar elements actuated by relative rotation. This is a constructive differentia that distinguishes it from other positive displacement pump types like reciprocating pumps (piston/diaphragm mechanism) or peristaltic pumps (flexible tube mechanism). The rotation-based displacement mechanism is the defining characteristic, not a unique function beyond the generic pumping function.
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:
Rotary pumps share the same identity-giving function as all pumps — to move fluid from lower to higher pressure through mechanical work. The PumpingFunction is already defined in the ontology for the pump class and should be reused. The constructive differentia (rotary mechanism) does not change the fundamental pumping function.
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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:
All three source definitions explicitly state that rotary pump is a subtype of positive displacement pump. This is the most specific appropriate superclass from the parent candidates. Positive displacement pump is already enriched in our ontology and provides the appropriate genus for this constructive subtype. The genus is more specific than the generic 'pump' class and captures the shared positive displacement mechanism.
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Expert review
3
Differentia Specifica
✓ done
∃hasComponentPartAtAllTimes.RotaryDisplacementMechanism ⊓ ∃lacksComponentPart.SeparateInletValve ⊓ ∃lacksComponentPart.SeparateOutletValve
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Conditions that distinguish
Rotary 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 two key distinguishing characteristics from the definitions: (1) the rotary displacement mechanism with specific types of elements (gears, cams, screws, vanes, plungers), and (2) the absence of separate inlet and outlet valves. These conditions are necessary and specific to rotary pumps among positive displacement pumps.
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Expert review
4
Necessary Parts
✓ done
DriveShaft, PumpChamber
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Consider part-whole relations beyond subsumption:
hasComponentPartAtAllTimes (universal, structurally essential)
· hasComponentPartAtSomeTime (contingent, optional component)
LLM rationale:
These parts represent the essential components that every rotary pump must have: the displacement mechanism that creates the pumping action, the drive shaft that provides rotational motion, and the chamber that houses the displacement elements.
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Expert review
5
Process Participation Signature ⟨I, O, T⟩
✓ done
PortionOfFluid → PortionOfFluid
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Inputs (I)
Outputs (O)
Transformation (T)
LLM rationale:
Rotary pumps take fluid at suction conditions and discharge it at higher pressure through the positive displacement action of the rotating elements. The signature is typical of positive displacement pumps.
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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 58 selected
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Select which CFIHOS/DEXPI properties inhere in every instance of Rotary Pump as
bfo:Quality subclasses.
Each selected property →
:RotaryPumpQuality ⊑ bfo:Quality, inheres in :RotaryPump
Custom axioms
none
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Axioms not produced by the pipeline. Each is appended verbatim as an
rdfs:subClassOf restriction on Rotary 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
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Click "Detect divergences" to analyse cross-standard disagreements for this cluster.