日本的一些发动机专家对欧洲的一些公司、研究所和大学等单位的发动机研究室进行了为期四周的访问,了解到欧洲内燃机的一些研究动向,现在介绍如下: 研制在排气和燃油经济性两方面都较好的发动机为了使发动机在排气和燃油经济性两方面都有较好的性能,欧洲正着重研制有以下特点的发动机: a.高压缩比的汽油机(压缩比12～ Some Japanese engine experts conducted a four-week visit to engine research labs of some European companies, research institutes and universities, and learned some research trends of the European internal combustion engine. Now we introduce the following: In terms of better performance of the engine in both exhaust and fuel economy, Europe is focusing on the development of the engine has the following characteristics: a. High compression ratio of the gasoline engine (compression ratio of 12 ~