4045HFG92 4.5L Generator Drive Engine

4045HFG92 4.5L Generator Drive Engine

Overview

  • PowerTech™ PWX
  • Standby: 67-99 kW (90-133 hp) @ 1800 rpm
  • Prime: 61-90 kW (82-121 hp) @ 1800 rpm
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Features

Features

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Wastegated turbocharger

  • Wastegated turbochargers are designed to develop more airflow at lower engine speeds to improve low speed torque. The wastegate control device bleeds off a portion of the exhaust flow at higher engine speeds. Wastegated turbos deliver improved transient response and higher peak torque without compromising engine envelope size. They also provide the lowest installed cost across a given power range.

Cooled exhaust gas recirculation (EGR)

  • EGR cools and mixes measured amounts of cooled exhaust gas with incoming fresh air to lower peak combustion temperatures, thereby reducing NOx.

Exhaust filters

  • These engines utilize a catalyzed exhaust filter that contains a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF). The DOC reacts with exhaust gases to reduce carbon monoxide, hydrocarbons, and some particulate matter (PM). The downstream DPF traps and holds the remaining PM. Trapped particles are oxidized within the DPF through a continuous cleaning process called passive regeneration. Passive regeneration occurs during normal operating conditions when heat from the exhaust stream and catalysts within the exhaust filter trigger the oxidation of the trapped PM. If passive regeneration cannot be achieved due to low temperature, load, or speed, then PM is removed using active regeneration - an automatic cleaning process controlled by the exhaust temperature management system. Engines below 130 kW (174 hp) use an in-cylinder dosing system for active regeneration, while larger engines use an external dosing system.

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 1,975 bar (29,000 psi). It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.

4-valve cylinder head

  • The 4-valve cylinder head provides excellent airflow by utilizing a cross-flow design and a U-flow design.

Air-to-air aftercooled

  • This is the most efficient method of cooling intake air to help reduce engine emissions. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.

Compact size

  • Lower installed cost
  • Simplifies installation
  • Mounting points are the same as previous models

Electronic engine controls

  • Faster engine control unit (ECU) manages both the engine and the exhaust filter
  • Full authority electronic controls
  • Four times the memory, twice the RAM, and double the processing speed
  • The input/output capability has increased 40%

Additional features

  • Glow plugs
  • 500-hour oil change
  • Self-adjusting poly-vee fan drive
  • Variable-speed fan drive increases fuel economy and decreases noise levels
  • R.H. and L.H. engine-mounted final fuel filters
  • Optional low-pressure fuel system with electrical transfer pump and "auto-prime" feature

Specifications

Emissions certifications

CARB
EPA Interim Tier 4

General engine data

Model 4045HFG92
Number of cylinders 4
Displacement-- L (cu in) 4.5 (275)
Bore and Stroke-- mm (in) 106 x 127 (4.17 x 5.00)
Compression Ratio 16.1 : 1
Engine Type In-line, 4-cycle
Aspiration Turbocharged and air-to-air aftercooled
Length - mm (in) 867 (34.1)
Width-- mm (in) 680 (26.8)
Height-- mm (in) 1076 (42.4)
Weight, dry - kg (lb) 552 (1217)

DOC/DPF Dimensions

Size NA - Diameter - mm (in) 260.71 (10.3)
Size NA - Length - mm (in) 572.59 (22.5)
Size NA - Weight - kg (lb) 21.364 (47.1)

Performance data range

Hz (rpm) 60 ( 1800 )
Generator Efficiency % 88-92
Power Factor 0.8
Engine power - Prime kW 60-90
Engine power - Prime hp 80-121
Engine power - Standby kW 67-99
Engine power - Standby hp 90-133
Rated Fan Power - kW 5.4-7.9
Rated Fan Power - hp 7.2-10.6
Calculated generator set output - Prime kWe 49-76
Calculated generator set output - Prime kVA 61-95
Calculated generator set output - Standby kWe 54-84
Calculated generator set output - Standby kVA 68-105