| 词条 | Lycoming O-435 | |||||||||||||||
| 释义 |
{{More citations needed|date=September 2018}}
The Lycoming O-435 is a six-cylinder, horizontally opposed fixed-wing aircraft and helicopter engine made by Lycoming Engines. The engine is a six-cylinder version of the four-cylinder Lycoming O-290. Design and developmentThe powerplant is a horizontally opposed Lycoming six-cylinder design. It is a direct-drive or geared, air-cooled, and normally aspirated engine. The cylinders have steel barrels with aluminum heads, and the valves are operated by hydraulic lifters. The crankshaft is supported in an aluminum-alloy split case by four main bearings and one ball-thrust bearing, and lubricating oil is supplied from a 12 quart wet sump. The camshaft rides in journals that do not employ bearing inserts. The accessory housing supports two magnetos, a starter, a generator, and a dual tach drive. A spare mounting pad is included for a vacuum pump. VariantsAll engines have an additional prefix preceding the 435 to indicate the specific configuration of the engine. There are also numerous engine suffixes, denoting different accessories such as different manufacturers' carburetors, or different magnetos.
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Specifications (O-435-D){{pistonspecs||ref=Jane's.[1] |type=Six-cylinder horizontally-opposed gasoline piston engine |bore=4.875 in (123.7 mm) |stroke=3.875 in (98.4 mm) |displacement=434 cu in (7.1 L) |length= |diameter= |width=33.5 in (824 cm) |height=43.5 in (1,105 cm) |weight=433 lb (196.6 kg) |valvetrain=Overhead valve, one inlet and one exhaust valve per cylinder |supercharger= |turbocharger= |fuelsystem=Marvel-Schebler carburetor |fueltype=100 octane gasoline |oilsystem=Pressure pump type |coolingsystem=Air-cooled by fan |power={{convert|212|hp|kW|abbr=on}} at 3,000 rpm at sea level |specpower= |compression=7.5:1 |fuelcon= |specfuelcon= |oilcon= |power/weight= |designer= |reduction_gear=Direct-drive |general_other= |components_other= |performance_other= }} See also{{Aircontent|related=
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1. ^Bridgman 1994, p. 78d.
External links{{commons category|Lycoming O-435}}{{Lycoming aeroengines}} 3 : Boxer engines|Lycoming aircraft engines|Aircraft piston engines 1940–1949 |
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