Las Vegas (March 15, 2005) - Cummins Inc. (NYSE:CMI) launched their next-generation QSB engines which feature enhancements for superior performance, durability and reduced noise. These engines not only meet the Environmental Protection Agency (EPA) Tier 3 emissions requirements, but are fully capable of moving forward to the future Tier 4 requirements.
Cummins QSB engines feature advanced electronics, new sculpted blocks, rear gear trains, and High-Pressure Common-Rail fuel systems. The QSB will be available in both a four- and six-cylinder platform. The engines are rated from 110 - 275 hp (82 - 205 kW) and are specifically designed to meet the durability, reliability and power density requirements of premium applications such as excavators, materials handling equipment and cranes where high performance is essential at every site.
The 6.7-liter QSB, rated 135-275 hp (101-205 kW), will be in limited production in June 2005; a full six months ahead of the emissions regulations while the 4.5-liter QSB, rated 110-170 hp (82-127 kW), will be in limited production in December 2005, a full year ahead of the regulations. The 4.5-liter QSB has been increased from 130 hp to 170 hp (97-127 kW) from the Tier 2 engine while both versions feature an over 55% reduction in sound pressure.
"We've enhanced the QSB with some evolutionary durability and reliability updates which move the engines significantly ahead of the competition. Cummins in-cylinder emissions solution has enabled increased performance while meeting regulations without the use of complex turbocharger arrangements or external hardware such as exhaust gas recirculation," said Dave Crompton, Cummins Vice President - MidRange Engine Sales. "These upgrades ensure long-term platform stability for the OEM beyond 2011 with the addition of aftertreatment. Cummins is focused on providing engine platforms, customer support and technology to the construction market that are second to none in the industry every time," he added.
Engine sociability is becoming important not only in North America, but in some areas of the world noise levels are being legislated. To meet these new and impending requirements, Cummins has incorporated many enhancements that significantly reduce the noise level of the engines by as much as 9 dBA. The new QSB utilizes a rear gear train, an enclosed valve tappet cavity, and a sculpted block to reduce the noise level such that the Tier 3 engine is as quiet at full load as its predecessor was without load. This is a benefit not only for meeting global requirements, but also enhances the operator's experience and reduces the potential for fatigue and distraction due to high noise levels.
The Tier 3 QSB engines feature a full authority electronic control, High-Pressure Common-Rail fuel system capable of generating up to 1600 bar injection pressures which translate to refined and rapid power delivery, reduced noise, and improved cold start. With the new fuel system, maintaining peak injection pressure is no longer dependent on engine speed, load conditions or fueling capability. Injection pressure can be virtually constant at all speeds, realizing greater flexibility and precision in controlling both injection rates and timing.
The High-Pressure Common-Rail fuel system is fully integrated with Cummins high-precision electronic management, driven by an upgraded CM850 ECM (Electronic Control Module) with a processing speed over twice as fast as the previous ECM. The QSB engine management system continually maintains an optimum balance between load demands, fuel-efficiency and emissions control. The CM850 ECM is designed for isolation from detrimental thermal and vibration loading for extreme reliability and durability.
OEM and operator interface with the engine management system is made easy using the latest QuickCheck III handheld data link providing instant diagnostics, fuel efficiency data and multiple engine reports.
QSB engines can be integrated into the equipment with PowerMatch™software, Cummins industry-leading, OEM-focused application technology. PowerMatch allows the equipment manufacturer to calibrate the engine specifically to the application. Torque curves and ratings can be tuned to optimize performance based on the specific requirements and changing needs of the machine's mission. PowerMatch provides the OEM unparalleled flexibility in designing a machine optimized for executing the work they perform.
The QSB engine is backed by Cummins industry-leading QuickServe® Guarantee program. Cummins QuickServe offers factory-certified technicians the most sophisticated diagnostic and repair tools in the industry and the largest international parts and service network of any engine manufacturer.
Cummins Inc., a global power leader, is a corporation of complementary business units that design, manufacture, distribute and service engines and related technologies, including fuel systems, controls, air handling, filtration, emission solutions and electrical power generation systems. Headquartered in Columbus, Indiana (USA), Cummins serves customers in more than 160 countries through its network of 550 distributor facilities and more than 5,000 dealer locations. With more than 24,000 employees worldwide, Cummins reported sales of $8.4 billion in 2004. Press releases can be found on the Web at www.cummins.com