Diesel engine 7-649

Modern 4-cycle 8-cylinder diesel engine 7-649 (26/26) is intended for replacement of engines 3-649 whose service life has expired in shunting and industrial locomotives 8 and 6 operated in climatic conditions 2.

With the main locomotive parameters being the same (power, design speed and tangential traction force) considerable improvement has been achieved in:

Examples of application

Locomotives 6 equipped with diesel engines 7-649 are in service on Russian railways, at industrial enterprises of the Russian Federation and CIS.

Replacement of the engine can be carried out directly on site as special complicated equipment and highly qualified personnel are not required to do the job.

Environmental compatibility

Installation of diesel engines 7-649 in locomotives 8, 6 provided considerable reduction of harmful emissions, sound pressure and smoke.

Engine characteristics in comparison

Characteristics

7-649

3-649

Full power, kW (hp)

588 (800)

588 (800)

Engine speed, rpm

860

860

Engine weight, kg

10500

10000

Engine dimensions (L x B x H), mm

335516652420

335516652290

Specific fuel consumption at full power, g/kW h

215

218,9

Fuel consumption per hour at idling, kg/h

5,7

8,5

Specific oil consumption at full power, g/kW h

1,1

1,2

Top end overhaul interval, h

20000

16000

Major overhaul interval, h

70000

60000