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据1981年第27期《国外机械参考》报道,美国约翰迪尔公司在一台单缸柴油机上进行了把未经精炼的花生油和向日葵油,以及它们与2号柴油一比一的混合油等作为燃料的研究。在柴油机的喷油泵以最大供油率进行工作的情况下,在分别改烧植物油和混合油时,这台发动机所产生的功率与烧柴油时相同,或者稍有增加。调节喷油泵喷射的植物油能量和柴油一样时,发动机总的性能稍有降低。即功率和烧柴油时仍相同或稍有降低,热效率稍有降低,而排气温度则随着植物油在燃油中含量的增大而提高。
According to 1981, No. 27 “Foreign Machinery Reference” reported that the United States John Deere company in a single cylinder diesel engine carried out by the unsalted peanut oil and sunflower oil, and their No. 2 diesel oil and a mixture of oil Research as a fuel. With a diesel fuel pump operating at its maximum fueling rate, this engine produces the same, or slightly, increased power as when burning vegetable oil and mixed oil, respectively. Adjusting the injection pump vegetable oil and diesel fuel the same, the overall performance of the engine a slight decrease. That is, the power is still the same or slightly lower when burning diesel, the thermal efficiency slightly decreases, while the exhaust temperature increases with the increase of vegetable oil in the fuel.