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Low Speed 2-stroke Diesel Engine: L35MC6・S35MC7

Kawasaki-MAN B & W Low Speed 2-stroke Diesel Engine series produced in cooperation of Kawasaki Heavy Industries, Ltd., one of the major manufacturers of large bore main diesel engines for ocean going vessels as a leading licensee of MAN Diesel, Co., Ltd. and Turbo Co., Ltd., and the Hanshin Diesel Works, Ltd., one of the major manufacturers of main engines for domestic coastal vessels, was developed as the result of the expansion of designing thought of uniflow scavenging constant pressure turbocharging system into the smaller size engine field.

  • Low fuel oil consumption
    Basing on the advantages of uniflow scavenging constant pressure system, the bore stroke ratio was enlarged up to 3.0~4.0 making it possible to remarkable low fuel oil consumption.
  • Low engine speed
    If the propeller rpm is reduced by 10%, the propelling efficiency is increased by about 3.3%. The fuel cost will be remarkably lowered due to the synergistic effect of the low fuel oil consumption of the diesel engine itself and the low rpm in the long stroke design.
  • Wide range of output
    The output of L35MC6 per cylinder is 650kW, and that of S35MC7 is 740kW. They cover wide range of output from 5 to 8-cylinder. Users can select the optimum rating output/rpm in accordance with the type and use of the ship.
  • Heavy fuel oil
    Due to the uniflow scavenging system, combustion is steady in low load operation of the engine. Because of the fuel valve of unique design, the engine permits the use of heavy fuel oil up to 700cSt/50℃ in the entire load area including the starting and stopping.

Low Speed 2-stroke Diesel Engine

Model L35MC6 S35MC7
Cylinder bore × stroke 350×1050 350×1400
Layout L1 L2 L3 L4 L1 L2 L3 L4
Speed 210 210 178 178 173 173 144 147
Break mean effective pressure 18.4 14.7 18.4 14.7 19.1 15.3 19.1 15.3
Output Number
of
cylinders
5 3250
(4425)
2600
(3525)
2750
(3750)
2200
(3000)
3700
(5050)
2975
(4050)
3150
(4250)
2525
(3425)
6 3900
(5310)
3120
(4230)
3300
(4500)
2640
(3600)
4440
(6060)
3570
(4860)
3780
(5130)
3030
(4110)
7 4500
(6195)
3640
(4935)
3850
(5250)
3080
(4200)
5080
(7070)
4165
(5670)
4410
(5985)
3535
(4795)
8 5200
(7080)
4160
(5640)
4400
(6000)
3520
(4800)
5290
(8080)
4760
(6480)
5040
(6840)
4040
(5480)
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