Yuchai series YC4D single fuel engine

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Yuchai 4D series single fuel engine & lt; b> a, model description & lt; /b> YC4D series single fuel engine is Yuchai and the ECI Econtrols company designed for medium duty truck development of natural gas (CNG / LNG) single fuel engine. The main parts of the common YC6D engine, inherited all the advantages of the YC6J engine. < b> < two, model features: /b> < b> /b> high reliability < < b> < /b> B10 service life of more than 800 thousand km, average mileage of over 10 thousand km - electronic control device, ignition system and engine management system, a full set of imported parts; adopt platinum electrode spark plug, high combustion efficiency, long service life of gas engine - special exhaust system and combustion system by the United States - Garrett& nbsp; GT40 type water-cooled turbocharger, high efficiency and long service life, adopt the electronic pressure inlet, realizing lean combustion, ensure the gas consumption rate is low, soft, burning high thermal efficiency and low exhaust temperature - wide range oxygen sensor accurate air-fuel ratio control to ensure emissions while achieving economic optimal - closed loop control system closed-loop control: full condition + self-learning and diagnostic function, The gas engine of Yuchai gas composition, the habit of adaptive adaptive driver! & lt; b> intelligent & lt; /b>] have intelligent management, intelligent energy-saving, intelligent guard, intelligent servo, intelligent early warning function, save worry, save time, save money] intelligent care, prolong the service life of the engine & lt; b> ultra low noise & lt; /b>] mild combustion, ultra low noise, small vibration, comfortable good. Overall mean noise is less than 93dB (a) & lt; b> ultra low emission & lt; /b>] oxidation type catalytic converter, meet the national III emission standards, upgraded to National IV standard, no visible soot, no particles & lt; b> convenient maintenance & lt; /b>] the design, use, close to the good. < br /> < b> three, the main technical parameters of YC4D single fuel engine < /b> < b> YC4D140N-40 type YC4D120N-40 cylinder - bore * stroke (mm) 4 -108 * 115 & displacement; nbsp; cold fuel turbocharged L 4.214 intake mode in CNG (compressed natural gas (liquefied /LNG) natural gas) rated power / speed kW/r/min 103/2800 88/2800 maximum torque / speed N.m/r/min 420/1400 ~ 1800 380/1400 ~ 1800 of the minimum gas consumption (g/kW.h) noise is less than or equal to 210 (ISO 3744) dB (A) = 93 kg 380 emissions 4 machine quality adaptation models total quality engineering 10T light truck, car < br /> < /b>