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Weichai Power Co. , Ltd. In order to meet the market demand , the development of their own to develop a new generation of medium-speed diesel engines , X6170Z type . X6170Z type diesel engine fully absorb domestic and foreign advanced technology of the diesel engine , the main structural features : a four-valve , in-line , four-stroke , turbocharged and intercooled , ω- direct injection combustion chamber , double-cycle water-cooled , pressure-lubricated , the power 330kW, the rotational speed 1000r/min, fuel consumption rate 204g/kW.h . This thesis focuses on the main components of the diesel engine cooling system , lubrication system , valve train, gear transmission system , fuel supply system , pressurization system and the body , crankshaft , pistons, connecting rods, cylinder head and other detailed design study , aimed at diesel engine performance requirements . Order to meet requirements of power, economy and emissions of diesel engines , the text of the diesel engine and the main components of the turbocharger , high - pressure oil pump , injector match commissioning tests , and in the trial process , using the finite element analysis , the main components to affect the reliability of the diesel engine for a detailed structural optimization . Through the above-mentioned study , 170 developed diesel engine power, economy , reliability and emissions performance requirements to achieve the intended purpose , and achieved satisfactory results . Currently , X6170Z type of diesel engine has been the formation of a stable production capacity of an annual output of 2,000 units , the leading products for medium-speed diesel engines , I plant , has won the praise of users .
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