Cummins Engine NTA855-P450 for Dredger

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Basic Info

Certificate:	ISO9001:14001

Product Description

Product Name: Cummins Pump Engine

Engine Model:NTA855-P450

Nt855 Data Nt855 Drawings

Technical Specification
Engine Model	NTA855-P450	Fuel Consumption	19gal/hr
Rating Type	Continuous	Fuel Flow	57gal/hr
Rated Power	450hp / 336kW	Manifold Pressure	194kPa
Rated Speed	1500/1800/2100rpm	Intake Air Flow	3597 cfm
Peak Torque	1385 NHm	Heat Rejection	4464 BTU/min/78kW
Cylinders	6	Size-Engine Only	190011501900mm
Aspiration	Turbocharged	Weight (Dry)	1400kg
Compression Ratio	14.0:1	Idle Speed Setting	575-650rpm
Piston Speed	1791 ft/min	Idle Speed Variation	±25rpm
Displacement	14L	High Idle Speed Min	1962rpm
*BoreStroke**	140*152mm	High Idle Speed Max	2106rpm
Fuel System	PT pump	Thermostat Operating	82°C-94°C
Optional Configuration	According to the type of cooling( Water-cooled, Air-cooled.) Configuration: Radiator,Fan / Heat Exchanger(Keel cooling), Expansion tank, Sea water pump, Control system, Remote control system.

Cummins Features and Benefits

■ Crankshaft and Rod

Robust and fully balanced crankshaft design for a more steadily rotation and higher strength. Steel piston crown with oil gallery and aluminum skirts for better durability and low oil consumption.

■ Fuel System

Cummins unique PT with fixture and Step Timing control for precise fuel injection make the fuel injection pressure above 120Mpa, which leads to an excellent fuel consumption rate and emission performance. Check valve in fuel tube improve reliability.

■ Lubrication System

Dual spin-on filter can separate impurity above 10um effectively. Low pressure(220-310Kpa) and steady temperature(100-120°C)system can reduce auxiliary power wasting of the lubricating oil pump.

■ Cooling System

Great flux water pump and special channel design provide effective cooling. Spin in water filter makes the coolant clean and keeps it in normal acidity.

■ Exhaust System(After-cooled)

Advanced Holset turbocharger and water-air after cooler technology, pulse exhaust manifold reduce exhaust temperature, provide excellence fuel consumption and emission performance.

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