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A straight-twin engine, also known as an inline-twin, vertical-twin, inline-2, or parallel-twin, is a two-cylinder piston engine whose cylinders are arranged in a line along a common crankshaft. Straight-twin engines are primarily used in motorcycles; other uses include automobiles, marine vessels, snowmobiles, jet skis , all-terrain vehicles ...
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.
Operating cycle for a four-stroke engine Operation of a flat-twin engine Operation of a straight-four engine. Although some components within the engine (such as the connecting rods) have complex motions, all motions can be separated into reciprocating and rotating components, which assists in the analysis of imbalances.
Inline six-cylinder. 230 Series (230in 3; gasoline or diesel) 262 Series (262in 3; gasoline, propane or diesel) 273 Series (273in 3; gasoline or diesel)
Cutaway side-view diagram of an axial piston pump 3-D rendering of an axial piston pump with the parts labeled Animation of an axial piston pump in operation. An axial piston pump has a number of pistons (usually an odd number) arranged in a circular array within a housing which is commonly referred to as a cylinder block, rotor or barrel.
The AR engine family is an Inline-4 piston engine series by Toyota, first introduced in 2008 for the RAV4, and subsequently for the Highlander, Venza, Camry and Scion tC.. The AR series uses a die-cast aluminium engine block and aluminium DOHC cylinder head.
Inline 4: 2.0 L (1,999 cc), Inline-6: 3.0 L (2,997 cc) Cylinder bore: 83 mm (3.3 in) Piston stroke: 92.3 mm (3.6 in) Cylinder block material: Aluminium alloy, cast iron liners: Cylinder head material: Aluminium alloy, integrated exhaust manifold: Valvetrain: 4 valves / cylinder, DOHC, chain-drive, electrohydraulic fully variable intake and ...
The counter balance shafts have eccentric weights and rotate in opposite direction to each other, which generates a net vertical force. The balance shaft was invented and patented by British engineer Frederick W. Lanchester in 1907. [1] [2] It is most commonly used in inline-four and V6 engines used in automobiles and motorcycles.