Bentley 4½ Litre car engine
E728789
The Bentley 4½ Litre car engine is a robust, high-performance four-cylinder powerplant from the late 1920s that powered Bentley’s famous racing and sports cars, including Le Mans–winning models.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Bentley 4½ Litre | 2 |
| Bentley 4½ Litre car engine canonical | 1 |
| Bentley Speed Six engine | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8349743 — 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: Bentley 4½ Litre car engine Context triple: [W. O. Bentley, designed, Bentley 4½ Litre car engine]
-
A.
Bentley 3 Litre
The Bentley 3 Litre is a pioneering early-1920s British luxury sports car renowned for its engineering excellence and success in endurance racing, including the 24 Hours of Le Mans.
-
B.
Rolls-Royce Derwent
The Rolls-Royce Derwent is a pioneering British centrifugal-flow turbojet engine developed during World War II that powered early jet fighters such as the Gloster Meteor.
-
C.
Rolls-Royce Dart
The Rolls-Royce Dart is a pioneering British turboprop aircraft engine introduced in the late 1940s, widely used in regional airliners such as the Vickers Viscount and renowned for its reliability and long service life.
-
D.
Bentley Straight
Bentley Straight is the longest and fastest section of the Snetterton motor racing circuit, known for its high-speed runs and overtaking opportunities.
-
E.
Rolls-Royce XG-40
The Rolls-Royce XG-40 was an experimental British low-bypass turbofan engine program that served as the technological basis for the later Eurojet EJ200 fighter aircraft engine.
- 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: Bentley 4½ Litre car engine Target entity description: The Bentley 4½ Litre car engine is a robust, high-performance four-cylinder powerplant from the late 1920s that powered Bentley’s famous racing and sports cars, including Le Mans–winning models.
-
A.
Bentley 3 Litre
The Bentley 3 Litre is a pioneering early-1920s British luxury sports car renowned for its engineering excellence and success in endurance racing, including the 24 Hours of Le Mans.
-
B.
Rolls-Royce Derwent
The Rolls-Royce Derwent is a pioneering British centrifugal-flow turbojet engine developed during World War II that powered early jet fighters such as the Gloster Meteor.
-
C.
Rolls-Royce Dart
The Rolls-Royce Dart is a pioneering British turboprop aircraft engine introduced in the late 1940s, widely used in regional airliners such as the Vickers Viscount and renowned for its reliability and long service life.
-
D.
Bentley Straight
Bentley Straight is the longest and fastest section of the Snetterton motor racing circuit, known for its high-speed runs and overtaking opportunities.
-
E.
Rolls-Royce XG-40
The Rolls-Royce XG-40 was an experimental British low-bypass turbofan engine program that served as the technological basis for the later Eurojet EJ200 fighter aircraft engine.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
Bentley engine
ⓘ
internal combustion engine ⓘ |
| application |
Bentley 4½ Litre
NERFINISHED
ⓘ
Bentley 4½ Litre Le Mans NERFINISHED ⓘ Bentley 4½ Litre racing cars NERFINISHED ⓘ |
| aspiration | naturally aspirated ⓘ |
| blockMaterial | cast iron ⓘ |
| bore | 100 mm ⓘ |
| compressionRatio | about 5.3:1 ⓘ |
| coolingSystem | water-cooled ⓘ |
| countryOfOrigin | United Kingdom ⓘ |
| cylinderConfiguration | inline-four ⓘ |
| designedBy | W. O. Bentley NERFINISHED ⓘ |
| displacement |
4.4 L
ⓘ
4398 cc ⓘ |
| engineCycle | four-stroke ⓘ |
| era | late 1920s ⓘ |
| fuelType | petrol ⓘ |
| headMaterial | aluminium ⓘ |
| historicalSignificance |
associated with the Bentley Boys racing drivers
ⓘ
powered successful Bentley factory racing team cars ⓘ |
| ignitionSystem | dual ignition ⓘ |
| layout | front-mounted ⓘ |
| manufacturer | Bentley Motors Limited NERFINISHED ⓘ |
| notableFeature |
dual ignition system
ⓘ
four-valve-per-cylinder design ⓘ high performance for its era ⓘ robust construction ⓘ |
| notablePeriod | vintage racing era ⓘ |
| notableRace | 24 Hours of Le Mans NERFINISHED ⓘ |
| notableUse | Bentley Le Mans–winning cars ⓘ |
| numberOfCylinders | 4 ⓘ |
| powerOutput |
approximately 110 bhp
ⓘ
approximately 82 kW ⓘ |
| productionEnd | 1931 ⓘ |
| productionStart | 1927 ⓘ |
| stroke | 140 mm ⓘ |
| totalValves | 16 ⓘ |
| usedInVehicleClass |
racing car
ⓘ
sports car ⓘ |
| valvesPerCylinder | 4 ⓘ |
| valvetrain | single overhead camshaft ⓘ |
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: Bentley 4½ Litre car engine Description of subject: The Bentley 4½ Litre car engine is a robust, high-performance four-cylinder powerplant from the late 1920s that powered Bentley’s famous racing and sports cars, including Le Mans–winning models.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Bentley Speed Six engine
this entity surface form:
Bentley 4½ Litre
this entity surface form:
Bentley 4½ Litre