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法国国营铁路设计了两台用电子控制燃料喷射的 Serac2400型电子调速器。其中一台于1986年安装在 BB67620型内燃机车上运营了一年,跑完了10×10~4km 计费里程。运营经历表明:内燃机车采用这种电控喷射调速器时,由于柴油机在荷载条件下始终以最低速度运转,因此柴油机的总转数大大减少,和传统的液压调速器相比,Serac 可以节省燃料,减少发动机磨耗,从而取得可观的节支。仅管这种节支的数量,目前还未能准确测定,他们认为
The SNCF has designed two Serac2400 electronic governors with electronically controlled fuel injection. One of them was installed on the BB67620 diesel locomotive in 1986 and operated for one year, running 10 × 10 ~ 4km billing mileage. Operating experience shows that when diesel locomotives are equipped with this type of electronically controlled jet speed governor, the total number of revolutions of the diesel engine is greatly reduced since the diesel engine is always running at the minimum speed under load. Compared with a conventional hydraulic governor, Serac can Save fuel, reduce engine wear and thus achieve considerable savings. Despite the number of such savings, it has not been accurately measured, they think