EMD 645 series
E888882
The EMD 645 series is a family of two-stroke diesel locomotive engines widely used in North American freight and passenger locomotives from the 1960s onward.
All labels observed (2)
| Label | Occurrences |
|---|---|
| EMD 16-645F3B | 1 |
| EMD 645 series canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10735197 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: EMD 645 series Context triple: [GP40PH-2, hasPrimeMover, EMD 645 series]
-
A.
EMD F125
The EMD F125 is a modern diesel-electric passenger locomotive built by Electro-Motive Diesel for commuter rail service, featuring improved emissions performance, higher power output, and updated safety and control systems compared to its predecessors.
-
B.
EMD FT locomotive
The EMD FT locomotive is a pioneering diesel-electric freight locomotive introduced in the late 1930s that helped establish Electro-Motive Division as a leader in replacing steam power on American railroads.
-
C.
EMD SD70 series locomotives
The EMD SD70 series locomotives are a family of high-horsepower, six-axle diesel-electric freight locomotives widely used by North American railroads since the 1990s for heavy mainline service.
-
D.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
E.
EMD F40PH
The EMD F40PH is a widely used four-axle diesel-electric passenger locomotive built by Electro-Motive Division, best known for its long service on North American commuter and intercity railroads.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: EMD 645 series Target entity description: The EMD 645 series is a family of two-stroke diesel locomotive engines widely used in North American freight and passenger locomotives from the 1960s onward.
-
A.
EMD F125
The EMD F125 is a modern diesel-electric passenger locomotive built by Electro-Motive Diesel for commuter rail service, featuring improved emissions performance, higher power output, and updated safety and control systems compared to its predecessors.
-
B.
EMD FT locomotive
The EMD FT locomotive is a pioneering diesel-electric freight locomotive introduced in the late 1930s that helped establish Electro-Motive Division as a leader in replacing steam power on American railroads.
-
C.
EMD SD70 series locomotives
The EMD SD70 series locomotives are a family of high-horsepower, six-axle diesel-electric freight locomotives widely used by North American railroads since the 1990s for heavy mainline service.
-
D.
EMD F59PHI
The EMD F59PHI is a streamlined diesel-electric passenger locomotive widely used in North American intercity and commuter rail services.
-
E.
EMD F40PH
The EMD F40PH is a widely used four-axle diesel-electric passenger locomotive built by Electro-Motive Division, best known for its long service on North American commuter and intercity railroads.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
diesel engine family
ⓘ
two-stroke diesel engine ⓘ |
| applications |
marine engines
ⓘ
stationary power plants ⓘ |
| aspiration |
Roots-blown
ⓘ
turbocharged ⓘ |
| bore | 9.0625 inches ⓘ |
| coolingSystem | liquid-cooled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| cycleType | two-stroke ⓘ |
| cylinderConfiguration | V-type ⓘ |
| cylinderDisplacement | 645 cubic inches ⓘ |
| designFeature |
modular power assemblies
ⓘ
unit injectors ⓘ |
| emissionsControl | pre-EPA Tier standards ⓘ |
| familyIncludes |
EMD 645E
NERFINISHED
ⓘ
EMD 645F NERFINISHED ⓘ EMD 645G NERFINISHED ⓘ |
| fuelType | diesel fuel ⓘ |
| governorType |
electronic governor
ⓘ
mechanical governor ⓘ |
| introduced | 1965 ⓘ |
| manufacturer |
Electro-Motive Division
NERFINISHED
ⓘ
General Motors Electro-Motive Division NERFINISHED ⓘ |
| market | global export market ⓘ |
| notableModel |
EMD 16-645E3
NERFINISHED
ⓘ
EMD 16-645F3B NERFINISHED ⓘ EMD 20-645E3 NERFINISHED ⓘ |
| notableOperator |
Amtrak
NERFINISHED
ⓘ
Burlington Northern Railroad NERFINISHED ⓘ Canadian National Railway NERFINISHED ⓘ Union Pacific Railroad NERFINISHED ⓘ |
| numberOfCylindersRange | 8 to 20 cylinders GENERATED ⓘ |
| powerRange | 1500 to 3600 horsepower ⓘ |
| predecessor | EMD 567 series NERFINISHED ⓘ |
| primaryUse | locomotive propulsion ⓘ |
| productionStart | 1960s ⓘ |
| scavenging | forced-air scavenging ⓘ |
| stroke | 10 inches ⓘ |
| successor | EMD 710 series NERFINISHED ⓘ |
| usedIn |
freight locomotives
ⓘ
passenger locomotives ⓘ |
| usedInLocomotiveModel |
EMD F40PH
NERFINISHED
ⓘ
EMD GP40 NERFINISHED ⓘ EMD SD40 NERFINISHED ⓘ EMD SD40-2 NERFINISHED ⓘ |
| usedInRegion | North America NERFINISHED ⓘ |
| valveType | uniflow scavenged ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: EMD 645 series Description of subject: The EMD 645 series is a family of two-stroke diesel locomotive engines widely used in North American freight and passenger locomotives from the 1960s onward.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
MPI MP36PH-3C
this entity surface form:
EMD 16-645F3B