使内燃机车的燃料费用降低40％的一种途径就是使其能够适应燃用重油与馏出油(本文指煤油和柴油——译者)之混合燃料。在这方面法国热机研究所(S.E.M.T)积累了丰富的经验,他们曾在PA4系列柴油机上进行了8000多小时燃用这种混合油的试验。因此现在要选择此方案已是可行的了。从长远来看,人们认为真正可行的柴油机代用燃料仅仅是从生物(biomass)中制取的酒精,或者是取自作为核电站的一种副产品的氢。至于液化煤和液化气(不论是木煤气还是气化煤气),则似乎还暂不适于作为内燃机车柴油机的代用燃料。 One way to reduce the fuel cost of a diesel locomotive by 40% is to enable it to accommodate a mixture of heavy fuel and distillate fuel (referred to herein as kerosene and diesel). In this regard, S.E.M.T has a wealth of experience in the quest for burning more than 8,000 hours of this mixed oil on the PA4 series of diesel engines. So now to choose this program is feasible. In the long run, it is thought that viable alternative diesel fuels are just alcohol made from biomass or hydrogen taken as a by-product of a nuclear power plant. As for liquefied coal and liquefied gas, whether wood gas or gasification gas, it seems temporarily unsuitable as a substitute fuel for diesel locomotives.