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Model: Engine displacement [cm 3] Production time: Notes: First model 1902–1904 used Minerva, JAP and Fafnir engines Second Model 1905 Triumph used their own engine for the first time, 250 were made, 3 hp Model 474 1908–1909 production up to 3000 in 1909 Model Roadster 500 1910–1913 single speed, optional rear hub clutch as the 'free ...
Animation of a two-stroke engine. A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes of the piston (one up and one down movement) in one revolution of the crankshaft in contrast to a four-stroke engine which requires four strokes of the piston in two crankshaft revolutions to complete a power cycle.
A stroke is the action of a piston travelling the full length of its cylinder.In a two-stroke engine, one of the two strokes combines primarily the intake stroke and the combustion stroke, while the other stroke primarily combines the compression stroke and the exhaust stroke, though technically since both ports are exposed during both the combustion and compression strokes, some reversion ...
The M4+2 engine has a four-stroke piston and a two-stroke piston. The shaft of the four-stroke piston rotates twice as fast as the shaft of the two-stroke piston, and the two-stroke part always runs at half speed. This ensures that both parts work optimally regarding fuel consumption at all times.
Boxer crankshaft configuration. Most flat-twin engines use a boxer configuration for the crankshaft and are therefore called "boxer-twin" engines. In a boxer-twin engine, the 180° crankshaft moves the pistons in phase with each other, therefore the forces generated by one piston are cancelled out by the other, resulting in excellent primary balance.
In internal combustion engines, a split-single design is a type of two-stroke where two cylinders share a single combustion chamber. The first production split-single engine was built in 1918 and the design was used on several motorcycles and cars until the mid-1950s, although Puch continued producing split-single engines for motorcycles until ...
The Rex engine at 6:1 compression has no bhp given but carries a 12-millimetre Bing carburettor to the aluminium barrel with sleeve liner in conventional fore & aft porting layout. The crankcase cavity unusually extends all the way to the back of the motor to include lubrication of the reduction gear and its bearings by the induction gases.
In November 2024, Honda showed a prototype of a newly developed V3 engine paired to an electric supercharger. [5] A related layout was the W3 engine, although this placed all three cylinders in the same plane, but none of them in the same bank. This was used for the 1905–1915 four-stroke Anzani engine, which was used in motorcycle and ...