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The initial engine choice in 1954 for what was known at the time as "Medium Gun Tank No.2", later designated the "FV4201" and given the service name 'Chieftain', was a Rolls-Royce diesel V8, however during the Chieftain's design phase NATO introduced a policy in 1957 requiring all armoured fighting vehicles to have a multi-fuel capability.
Compression: This stroke begins at B.D.C, or just at the end of the suction stroke, and ends at T.D.C. In this stroke the piston compresses the air-fuel mixture in preparation for ignition during the power stroke (below). Both the intake and exhaust valves are closed during this stage. Combustion: Also known as power or ignition. This is the ...
The M4+2 engine, also known as the double-piston internal combustion engine, is a type of internal combustion engine invented by Polish patent holder Piotr Mężyk. [1] The M4+2 engine took its name from a combination of two-stroke engines and four-stroke engines. The two-stroke combustion engine is characterized by a simple construction and ...
The Wärtsilä RT-flex96C is a two-stroke turbocharged low-speed diesel engine designed by the Finnish manufacturer Wärtsilä. It is designed for large container ships that run on heavy fuel oil . Its largest 14-cylinder version is 13.5 meters high, 26.59 meters long, weighs over 2,300 tonnes , and produces 80.08 megawatts .
Four-stroking is problematic when a quiet, docile engine is required and also when the load on an engine suddenly changes. [4] Retarding ignition timing reduces four-stroking, as it allows more time for scavenging to take effect. Two-stroke engines, when running at low power, are less sensitive to ignition timing changes than four-stroke engine.
In order to use existing tooling, five 250.6 cu in (4.1 L) Chrysler flathead engines (bore 3.4375 in or 87 mm, stroke 4.5 in or 114 mm) [1] were arranged around a central shaft, producing a unique 30-cylinder 21-litre (1,253 cu in) [1] engine in a relatively compact but heavy package.
The L is the first L engine produced. Toyota solely refers to it as the L engine, not the 1L engine. 2.2 L (2,188 cc), four-cylinder diesel engine. [7] Bore and stroke are 90 mm × 86 mm (3.54 in × 3.39 in), with compression ratios of around 21.5:1 [8]
The 224-cubic-inch (3.67 L) engine, the larger engine in this family, was introduced in 1917 for the 1918 model year and used only in the Series FA and FB. It had the same bore as the 171, but a longer stroke of 5 + 1 ⁄ 4 in (133 mm), giving it 37 horsepower (28 kW) at 2,000 rpm. Applications: 1918 Chevrolet Series FA (37 hp; 28 kW) [7]