English Electric 12CSVT
E889001
The English Electric 12CSVT is a turbocharged 12-cylinder diesel engine widely used in British Rail locomotives, most notably the Class 37.
All labels observed (4)
| Label | Occurrences |
|---|---|
| English Electric 12CSVT canonical | 2 |
| English Electric 12CSVT diesel engine | 1 |
| English Electric 16CSVT diesel engine | 1 |
| English Electric CSVT engine family | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T10857096 — 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: English Electric 12CSVT Context triple: [British Rail Class 37, primeMover, English Electric 12CSVT]
-
A.
Perkins CV12-6A V12 diesel
The Perkins CV12-6A is a 12-cylinder turbocharged diesel engine used as the powerplant for the British Challenger 2 main battle tank.
-
B.
Rolls-Royce CV12 TCA diesel
The Rolls-Royce CV12 TCA diesel is a British 12-cylinder turbocharged diesel engine developed for use in main battle tanks and other heavy armored vehicles.
-
C.
Rolls-Royce Viper
The Rolls-Royce Viper is a compact British turbojet engine widely used in military trainer and light attack aircraft from the mid-20th century.
-
D.
Rolls-Royce Kestrel V12 engine
The Rolls-Royce Kestrel V12 engine is a British liquid-cooled aircraft piston engine of the interwar period, widely used in RAF fighters and other military aircraft as an important step in Rolls-Royce’s development of high-performance aero engines.
-
E.
Bentley W12 petrol engine
The Bentley W12 petrol engine is a powerful twin-turbocharged 12-cylinder engine renowned for delivering exceptionally smooth, high-performance propulsion in Bentley’s flagship grand tourers.
- 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: English Electric 12CSVT Target entity description: The English Electric 12CSVT is a turbocharged 12-cylinder diesel engine widely used in British Rail locomotives, most notably the Class 37.
-
A.
Perkins CV12-6A V12 diesel
The Perkins CV12-6A is a 12-cylinder turbocharged diesel engine used as the powerplant for the British Challenger 2 main battle tank.
-
B.
Rolls-Royce CV12 TCA diesel
The Rolls-Royce CV12 TCA diesel is a British 12-cylinder turbocharged diesel engine developed for use in main battle tanks and other heavy armored vehicles.
-
C.
Rolls-Royce Viper
The Rolls-Royce Viper is a compact British turbojet engine widely used in military trainer and light attack aircraft from the mid-20th century.
-
D.
Rolls-Royce Kestrel V12 engine
The Rolls-Royce Kestrel V12 engine is a British liquid-cooled aircraft piston engine of the interwar period, widely used in RAF fighters and other military aircraft as an important step in Rolls-Royce’s development of high-performance aero engines.
-
E.
Bentley W12 petrol engine
The Bentley W12 petrol engine is a powerful twin-turbocharged 12-cylinder engine renowned for delivering exceptionally smooth, high-performance propulsion in Bentley’s flagship grand tourers.
- F. None of above. chosen
Statements (37)
| Predicate | Object |
|---|---|
| instanceOf |
diesel engine
ⓘ
internal combustion engine ⓘ |
| application | railway locomotive prime mover ⓘ |
| aspiration | turbocharged ⓘ |
| bore | 10 inches ⓘ |
| coolingSystem | liquid-cooled ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| crankshaftConfiguration | single crankshaft V-engine ⓘ |
| cycle | four-stroke ⓘ |
| cylinderConfiguration | V12 ⓘ |
| designedFor | mainline diesel-electric locomotives ⓘ |
| displacement | approximately 147 litres ⓘ |
| employedAs | prime mover in diesel-electric locomotives ⓘ |
| era | mid-20th century ⓘ |
| family |
English Electric CSVT engine family
ⓘ
linked to:
English Electric 12CSVT
|
| fuelSystem | direct injection ⓘ |
| fuelType | diesel fuel ⓘ |
| governorType | mechanical governor ⓘ |
| ignitionType | compression ignition ⓘ |
| manufacturer | English Electric ⓘ |
| notableFor |
reliability in mainline service
ⓘ
use in British Rail Class 37 locomotives ⓘ |
| notableIn | British dieselisation era ⓘ |
| numberOfCylinders | 12 ⓘ |
| powerTransmission | diesel-electric ⓘ |
| primaryRole | traction engine ⓘ |
| relatedTo |
English Electric 16CSVT
ⓘ
linked to:
English Electric 16SVT
English Electric 8CSVT ⓘ
linked to:
English Electric 8CSVT diesel engine
|
| stroke | 12 inches ⓘ |
| turbocharger | exhaust-driven turbocharger ⓘ |
| usedBy |
British Railways
ⓘ
linked to:
British Rail
freight and passenger operators in the UK ⓘ |
| usedIn |
British Rail Class 37
ⓘ
British Rail Class 50 ⓘ British Rail Class 55 prototype DP2 ⓘ various British Rail diesel-electric locomotives ⓘ |
| valveConfiguration | four valves per cylinder ⓘ |
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: English Electric 12CSVT Description of subject: The English Electric 12CSVT is a turbocharged 12-cylinder diesel engine widely used in British Rail locomotives, most notably the Class 37.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: English Electric 12CSVT
linked to: English Electric 12CSVT
linked to: English Electric 12CSVT
subject linked to:
Tractor