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John Deere Constant-Speed Auxiliary & Generator Marine Engines

4045TF285 Constant Speed

Industrial Marine Engine

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4.5L PowerTech™
71 kW (95 hp)

Features

2-valve cylinder head

Cross flow head design that provides excellent breathing from a lower cost two-valve cylinder head

High-pressure common-rail (HPCR) and engine control unit (ECU)

The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures, up to 1600 bar (23,000 psi). It also controls fuel injection timing and provides precise control for the start, duration, and end of the injection.

Fixed geometry turbocharger

Fixed geometry turbochargers are sized for a specific power range and optimized to provide excellent performance across the entire torque curve. They are also designed to maximize fuel economy between the engine's rated speed and peak torque.

Turbocharged

In turbocharged engines, the air is pre-compressed. Due to the higher pressure, more air is supplied into the combustion chamber allowing a corresponding increase in fuel injection which results in greater engine output.

Multiple injection strategy

The HPCR fuel system and engine control unit (ECU) allow for multiple fuel injections. The number of fuel injections, based on speed and load, help contribute to lower combustion temperatures, which reduce the formation of NOx and particulates. The multiple injection strategy also provides an added benefit of noise reduction.

John Deere electronic engine controls

PowerTech E engines offer electronically controlled fuel systems with improved cold-start performance, precise engine speed control, torque curve shaping and more. Because these systems have less need for redundant sensors, add-on electronic governors, and shutdown devices - they result in a lower total installed cost.

Engine performance

Power bulge feature
Increased low-speed torque
Higher-peak torque ratings
Faster torque rise
Lower-rated speeds available for reduced noise and improved fuel economy

Additional features

Self-adjusting poly-vee fan drive
Forged-steel connecting rods
Replaceable wet-type cylinder liners
Either-side service
Standard gear auxiliary drive

Specifications

Emissions Certifications

IMO Tier 2	-
EPA Tier 3	-

General data

Model	4045TF285
Number of cylinders	4
Displacement – L (cu in)	4.5 (275)
Bore and Stroke – mm (in)	106 x 127 (4.17 x 5.0)
Engine Type	In-line, 4-cycle
Aspiration	Turbocharged
Length – mm (in) to rear of block	867 (34.1)
Width – mm (in)	680 (26.8)
Height – mm (in)	1055 (41.5)
Weight, dry – kg (lb)	491 (1082)

Performance data

Rated speed	78 kW @ 1800 rpm
Engine power - Standby kW (hp)	78 (105)
Engine power - Prime kW (hp)	71 (95)
Generator efficiency %	88-92
Rated fan power	4.7 (6.3)
Power factor	0.8
Calculated generator set output - Standby kVa (kWe)	81-84 (65-67)
Calculated generator set output - Prime kVa (kWe)	73-77 (59-61)

4045TF285 Constant Speed | Marine Diesel Engine | John Deere US