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The Volkswagen D24 engine is a 2.4-litre inline-six-cylinder (R6/I6), naturally aspirated diesel engine, formerly manufactured by Volkswagen Group from 1978 to 1995.〔ETKA〕 Subsequent forced induction variants of this engine were also available as the Volkswagen D24T engine with a turbocharger, and a turbo intercooled version, the Volkswagen D24TIC engine. These turbocharged variants resulted in higher power and torque outputs.〔 ==Technical description== All variants (naturally aspirated and forced induction) displace from a cylinder bore of , and a piston stroke of . Its inline six cylinder block is constructed from grey cast iron, and has seven main bearings to support the die-forged steel crossplane crankshaft. The cast aluminium alloy cylinder head contains two valves per cylinder each with two concentric valve springs, and shim-adjustable bucket tappets. The valves are opened via a timing belt-driven single overhead camshaft (SOHC), and the combustion chamber compression ratio is 23.5:1. Attached to the cylinder head is a cast aluminium alloy intake manifold on one side, and two cast iron exhaust manifolds on the same side (it's a non cross flow engine) (one manifold for three cylinders) followed by a two in one exhaust pipe system. The fuel system uses a Bosch mechanical distributor-type (Bosch VE type) injection pump which feeds indirect fuel injection into a remote whirl pre-combustion chamber. The cooling system is composed of a timing belt driven water pump, a 87 °C thermostat in the engine block itself. The thermostat receives coolant from the engine block and from a bypass running from the engine head. This system allows a very accurate opening and closing operation, avoiding thermal shocks and big coolant temperatures amplitude. The initially available variant of the D24 produced a DIN-rated motive power output of at 4,500 revolutions per minute (rpm); and it generated a torque of at 2,800 rpm.〔 Subsequent minor updates and revisions resulted in differing power and torque ratings. The weight of this engine is 182 kg or 401 lbs. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Volkswagen D24 engine」の詳細全文を読む スポンサード リンク
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