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12L displacement engine for heavy duty trucks, 5 power gear, optimized classification more reasonable and legible, matching the truck perfectly. The speed at maximum torque ranges from 1200 rpm to 1500 rpm; the high torque reserve coefficient allows the better starting, accelerating and grade ability; the natural gas engines is featured in smooth operation, low noise and free of carbon deposit, which prolongs the engine life by 30% and saves the fuel cost by 30% or more compared to the diesel engine of the same power.
T12 series Natural gas engine
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Model |
T12.34-40 |
T12.38-40 |
D12.42-40 |
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Pattern |
In-line,water cooling，4-stroke，electrical control fuel gas system |
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supercharging intermediate cooler,spark plug ignition and lean combustion |
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Number of value |
4 |
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Cylinder bore x stroke（mm） |
126×155 |
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Displacement |
11.596 |
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Compression ratio |
11；1 |
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Rated power kW（ps） |
249（340） |
279（380） |
309（420） |
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Rated speed （r/min） |
2000 |
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Max.torque (N.m) |
1470 |
1650 |
1820 |
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Speed at maximum torque(r/min) |
1200-1500 |
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Idle speed (r/min) |
600±50 |
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Net weight（kg） |
900 |
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Emission level |
Euro IV（with oxidation catalyst） |
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