Cummins Inc.

Cummins is global power leader, designing, manufacturing, distributing and servicing engines and related component technologies, including fuel systems, electronic controls, turbocharging, filtration, exhaust aftertreatment and electrical power generation systems. Headquartered in Columbus, Indiana, (USA), Cummins serves customers in more than 160 countries and territories through its network of 5,700 service locations. With more than 40,000 employees worldwide, Cummins reported sales of $13.2 billion in 2010.

Engines are produced for the truck, bus, mining, construction, agriculture, material handling, marine, rail, defence and power generation applications. With close to 600,000 units produced in 2010 Cummins remains the world's largest independent diesel engine manufacturer.

Cummins strategy remains to be at the forefront of developing cleaner diesel engines to meet the increasingly stringent emissions legislation. Following major long term investment in research and development the company is positioned to meet the next level of on-road and off-road emissions limits and beyond. Using high technology in-cylinder and after treatment solutions, Cummins is focused on providing the right technology for each of the markets it sells to. The ability to do this is due to Cummins having all key technologies in-house: combustion, fuel systems, air handling, controls and aftertreatment.

This allows Cummins to continue to deliver fully integrated air intake to exhaust outlet solutions that provide the highest levels of performance, reliability, durability and fuel economy with the lowest possible running costs.

Tier 4 Diesel Engines

January 1st 2011 saw the introduction of the Tier 4 Interim/EU Stage 3B emissions legislation for engines over 173 hp (130kW). These stringent regulations affect new equipment in construction, agricultural, mining and material handling applications. Compared to the previous Stage 3A low emissions legislation, Stage 3B reduces particulate matter emissions by over 90 percent oxides of nitrogen emissions by 45 percent. This has driven the use of engine component technologies that are new to the industrial business, but they are not new to Cummins. Technologies such as the particulate filter aftertreatment, cooled exhaust gas recirculation and variable geometry turbochargers have been used successfully by Cummins since 2007. Developed by Cummins as integral systems they drive a unique level of integration and packaging efficiency with improved fuel efficiency and enhanced engine response.

A full range of Tier 4 Diesel engines, from 3.3 to 15 litres, have been developed to meet the Stage 3B power demands up to 600hp (447 kW):

QSB3.3

The 4 cylinder 3.3 litre QSB3.3 diesel engine is available from 75 to 120 hp (56 to 90 kW) with a peak torque of 306 lb-ft (415 Nm).

The QSB3.3 diesel engine features cooled exhaust gas recirculation, Cummins Variable Flow Turbocharging and Cummins Compact Catalyst aftertreatment to meet the Tier 4 Interim/EU Stage 3B emissions levels.

QSB4.5

The 4 cylinder 4.5 litre QSB4.5 diesel engine is available from 110 to 160 hp (82 to 119 kW) with a peak torque of 466 lb-ft (632 Nm).

The QSB4.5 diesel engine features cooled exhaust gas recirculation, Cummins Variable Flow Turbocharging and Cummins Compact Catalyst aftertreatment to meet the Tier 4 Interim/EU Stage 3B emissions levels.

QSB6.7

The 6 cylinder 6.7 litre QSB6.7 diesel engine is available from 140 to 300 hp (104 to 224 kW) with a peak torque of 760 lb-ft (1030 Nm).

The QSB6.7 diesel engine features cooled exhaust gas recirculation, a high pressure common rail fuel injection system, Cummins Variable Geometry Turbocharging and Cummins Particulate Filter above 173 hp (130kW).

Below 173 hp (130 kW ) the QSB6.7 diesel engine features cooled exhaust gas recirculation, a high pressure common rail fuel injection system, Cummins Variable Geometry Turbocharging and Cummins Compact Catalyst aftertreatment to meet the Tier 4 Interim/EU Stage 3B emissions levels.

QSL9

The 6 cylinder 8.9 litre QSL9 diesel engine is available from 240 to 400 hp (179 to 298 kW).

The QSB6.7 diesel engine features cooled exhaust gas recirculation, Cummins Xtra-High Pressure Injection fuel system, Cummins Variable Geometry Turbocharging and Cummins Particulate Filter to meet the Tier 4 Interim/EU Stage 3B emissions levels.

QSX11.9

The 6 cylinder 11.9 litre QSX11.9 diesel engine is available from 300 hp to 500 hp (224 to 373 kW), with a peak torque of 1600 lb-ft (2169 Nm).

The QSX11.9 diesel engine features cooled exhaust gas recirculation, Cummins Xtra-High Pressure Injection fuel system, Cummins Variable Geometry Turbocharging and Cummins Particulate Filter to meet the Tier 4 Interim/EU Stage 3B emissions levels.

QSX15

The 6 cylinder 15 litre QSX15 diesel engine is available from 400 to 600 hp (298 to 447 kW) with a peak torque of 2050 lb-ft (2779 Nm).

The QSX15 diesel engine features cooled exhaust gas recirculation, Cummins Xtra-High Pressure Injection fuel system, Cummins Variable Geometry Turbocharging and Cummins Particulate Filter to meet the Tier 4 Interim/EU Stage 3B emissions levels.