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Tier 4 Final 4-Cylinder Engines Brochure

Tier 4 Final 4-Cylinder Engines Brochure

Product catalog summary

Introduction
The document discusses Cummins' approach to meeting EPA Tier 4 Final and EU Stage IV emissions regulations with their QSF2.8, QSF3.8, and QSB4.5 engines. These engines are designed to deliver high performance and efficiency while maintaining a compact size and meeting stringent emissions standards.

Specifications and Features

QSF2.8 Engine: Offers 74 hp with a peak torque of 221 lb-ft. It uses High Pressure Common Rail (HPCR) fuel injection, electronic controls, and a wastegated turbocharger. It meets emissions standards using cooled Exhaust Gas Recirculation (EGR) and Cummins Compact Catalyst (CCC).
QSF3.8 Engine: Delivers up to 132 hp with a peak torque of 360 lb-ft. It uses a Selective Catalytic Reduction (SCR) system without needing a Diesel Particulate Filter (DPF) or Diesel Oxidation Catalyst (DOC). It features full-authority electronic controls and a wastegated turbocharger.
QSB4.5 Engine: Provides up to 173 hp with a peak torque of 520 lb-ft. It uses a Variable Geometry Turbocharger (VGT) and combines SCR with CCC for emissions control. It is designed for high performance and durability.

Technological Innovations

Compact Design: The engines feature a compact design with innovative use of materials, such as composite materials and sculptured cast-iron blocks, to reduce weight and size.
Maintenance and Service: The engines are designed for easy maintenance with features like remote mounting of the Electronic Control Module (ECM) and extended service intervals for filters.
Advanced Air Filtration: The Direct Flow air cleaner provides enhanced dust-holding capacity and reduced space requirements.

Performance and Efficiency
The engines are engineered to deliver strong performance and efficiency, with features like high peak torque, advanced turbocharging, and optimized fuel systems. They are suitable for a variety of applications, including rental equipment, due to their reliability and low operational costs.

Conclusion
Cummins' engines for Tier 4 Final/Stage IV offer a combination of compact size, high performance, and advanced emissions technology. They are designed to meet the needs of various applications while ensuring compliance with emissions regulations.

Catalog excerpts

Tier 4 Final 4-Cylinder Engines Brochure-1

Smaller Meets Stronger. QSF2.8, QSF3.8 And QSB4.5 (49-173 hp) For EPA Tier 4 Final/EU Stage IV.

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Tier 4 Final 4-Cylinder Engines Brochure-2

Smaller Meets Stronger. Every Engine. ™ A Better Approach To Meeting Tier 4 Final Emissions Regulations. Just as one size of engine doesn’t fit the equipment or duty cycles of every piece of compact equipment, neither does a single approach to meeting Tier 4 Final emissions regulations. That’s where Cummins experience and technological resources give you a distinct advantage. We design and integrate all the key Tier 4 Final enabling systems from air intake to exhaust aftertreatment, optimizing the operation in a fully integrated package. This gives us a unique ability to evaluate every design...

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Tier 4 Final 4-Cylinder Engines Brochure-3

The compact design of the QSF2.8 includes our proprietary Direct Flow™ air cleaner, which takes up significantly less space than conventional cylindrical air filters, and has enhanced dust-holding capacity, for longer service intervals. Innovative use of composite materials, together with a sculptured cast-iron block, give the QSF2.8-powered equipment a significant weight advantage, at just 507 lb (230 kg). Maintenance is made simpler through remote mounting of the Electronic Control Module (ECM) for rapid plug-in diagnostics and data downloads using electronic tools such as the QuickCheck 5200....

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Tier 4 Final 4-Cylinder Engines Brochure-4

Built To Overachieve. The 4-cylinder QSB4.5 for Tier 4 Final is more powerful and responsive than ever before, delivering up to 173 hp (129 kW), with a peak torque of 520 lb-ft (705 N•m), a 12 percent increase over that of the previous Tier 4 Interim engine. This is the first application of our award-winning VGT Turbocharger technology on a 4-cylinder engine. Cummins patented sliding nozzle technology has fewer wear sites than any other variable turbine design, bringing unprecedented durability while providing precise adjustment of airflow delivered to the engine, enabling rapid boost at low...

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Tier 4 Final 4-Cylinder Engines Brochure-5

Engine Maximum Power Output Peak Torque Turbocharger Aftertreatment f^lSPBS Inline 4-cylinder design, 2.8 liter displacement, EPA Tier 4 Final/EU Stage IV (?SFBS Inline 4-cylinder design, 3.8 liter displacement, EPA Tier 4 Final/EU Stage IV QSF3.8 110 110(82)0 2500 306(415)0 1600 Wastegated Turbocharger Cummins Selective Catalytic Reduction Inline 4-cylinder design, 4.5 liter displacement, EPA Tier 4 Final/EU Stage IV QSB4.5 173 173 (130) @ 2100 520 (705) @ 1500 Variable Geometry Turbocharger Cummins Compact Catalyst + SCR QSB4.5 173 173 (130) @ 2000 520 (705) @ 1500 Variable Geometry Turbocharger...

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Tier 4 Final 4-Cylinder Engines Brochure-6

Cummins Ltd. Yarm Road, Darlington County Durham, DL1 4PW UK Phone: 1-800-DIESELS™ (1-800-343-7357) Fax: 1-800-232-6393 Internet: cumminsengines.com Twitter.com/CumminsEngines YouTube.com/CumminsEngines Bulletin 4087302 Printed in U.S.A. 4/13 ©2013 Cummins Inc.

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