| 词条 | Napier Culverin | |||||||
| 释义 |
The Napier Culverin was a licensed built version of the Junkers Jumo 204 six-cylinder vertically opposed liquid-cooled diesel aircraft engine built by D. Napier & Son. The name is derived from the French word, culverin, for an early cannon or musket.[1] First flown in 1938, the engine went into limited production, with testing carried out on a Blackburn Iris V biplane flying-boat aircraft and Fairey IIIF biplane.[2] DesignThe six cylinders were arranged vertically. Two crankshafts were located at the top and bottom of the engine and coupled together by gears. The inlet and exhaust ports were controlled by the pistons, as in a petrol-fuelled two-stroke engine. Specifications (Culverin){{pistonspecs||ref=[3] |type=12-piston 6-cylinder vertical opposed-piston liquid-cooled diesel engine. |bore=4.75 in (120.65 mm) |stroke=8.25 in (209.55 mm) |displacement=1,737 cu in (28.5 L) |length= |diameter= |width= |height= |weight=1,785 lb (809.6 kg) |valvetrain=Piston ported |supercharger= |turbocharger= |fuelsystem=Fuel injected |fueltype=Diesel oil |oilsystem= |coolingsystem=Liquid cooled |power=821 hp at 2,050 rpm |specpower= |compression= |fuelcon= |specfuelcon= |oilcon= |power/weight=0.46 hp/lb |designer= |reduction_gear=Spur geared, reduction ratio 0.6935:1, right hand tractor |general_other= |components_other=Starting system: Compressed air starter |performance_other= }} See alsoComparable engines
Related lists
ReferencesNotes1. ^Lumsden 2003, p.170. 2. ^Lumsden 2003, p.170. 3. ^Lumsden 2003, p.170. Bibliography{{refbegin}}
External links
7 : Napier aircraft engines|Two-stroke diesel engines|Aircraft diesel engines|Opposed piston engines|Aircraft piston engines 1930–1939|Diesel engines by model|Diesel engines by maker |
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