• Fresh air is first drawn into the low-pressure turbocharger (fixed geometry) and compressed to a higher pressure. The compressed air is then drawn into the high-pressure turbocharger (VGT), where the air is further compressed. The high-pressure air is then routed through a charge air cooler and into the engine's intake manifold. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds — lowering stress on turbocharger components and improving reliability. Series turbocharging delivers more boost pressure than single turbocharger configurations, which results in higher power density, improved low-speed torque, and improved high altitude operation.

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

• 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.

• 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.

The EUI fuel system provides higher injection pressures up to 2,275 bar (33,000 psi). It also controls fuel injection timing and provides precise control for start, duration, and end of injection.

• The 4-valve cylinder head provides excellent airflow resulting in greater low-speed torque and better transient response time by utilizing a cross-flow design.

• 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.

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

• Faster engine control unit (ECU) manages both the engine and the exhaust filter; four times the memory, twice the RAM, and double the processing speed; the input/output capability has increased 40%

• 500-hour oil change
• Self-adjusting poly-vee fan drive
• Variable-speed fan drive increases fuel economy and decreases noise levels
• Single-piece low-friction steel piston
• Directed top-liner cooling
• Low-pressure fuel system with electrical transfer pump and "auto-prime" feature

CARB

EPA Interim Tier 4

Model

6135HFG95

Number of cylinders

6

Displacement-- L (cu in)

13.5 (824)

Bore and Stroke-- mm (in)

132 x 165 (5.20 x 6.50)

Compression Ratio

15.3 : 1

Engine Type

In-line, 4 Cycle

Aspiration

Turbocharged and air-to-air aftercooled

Length - mm (in)

1544.2 (60.8)

Width-- mm (in)

962.3 (37.9)

Height-- mm (in)

1547.9 (60.9)

Weight, dry - kg (lb)

1678 (3699)

Size NA - Diameter - mm (in)

406.9 (16.0)

Size NA - Length - mm (in)

951.6 (37.5)

Size NA - Weight - kg (lb)

77.273 (170.4)

Hz (rpm)

60 ( 1800 )

Generator Efficiency %

90-95

Power Factor

0.8

Engine power - Prime kW

320-426

Engine power - Prime hp

429-571

Engine power - Standby kW

356-473

Engine power - Standby hp

477-634

Rated Fan Power - kW

21.4-28.4

Rated Fan Power - hp

28.7-38.1

Calculated generator set output - Prime kWe

274-384

Calculated generator set output - Prime kVA

342-480

Calculated generator set output - Standby kWe

301-422

Calculated generator set output - Standby kVA

376-528