PowerTech PWX 4.5L Diesel Engine
WATERLOO, Iowa (January 19, 2011) – John Deere Power Systems (JDPS) will display five of its Interim Tier 4/Stage III B diesel engines at World of Concrete 2011, January 18 – 21 in Las Vegas. Engines at the show will include the PowerTech™ PWX 4.5L, PowerTech PVX 6.8L models above and below 130 kW (174 hp), the PowerTech PSX 9.0L and the PowerTech PSX 13.5L. A variety of Funk pump drives will also be displayed.
Emissions regulations began January 1, 2011, for 130 kW (174 hp) and above engines and required a 90 percent reduction in diesel particulate matter (PM) and a 50 percent reduction in nitrogen oxide (NOx) from previous Tier 3/Stage III A requirements. The Interim Tier 4/Stage III B regulation effective date for 56 kW (75 hp) to 130 kW (174 hp) engines is January 1, 2012.
For its Interim Tier 4 engines, John Deere started with its proven PowerTech Plus Tier 3/Stage III A in-line, 4- and 6-cylinder engine platform – which included cooled exhaust gas recirculation (EGR) for NOx control – and added an exhaust filter for reducing PM. The exhaust filter consists of a diesel oxidation catalyst (DOC) and a diesel particulate filter (DPF).
These engines feature full-authority electronic controls, a four-valve cylinder head, a high-pressure fuel system, turbocharging and an air-to-air aftercooling system.
Engines between 56 kW (75 hp) and 129 kW (173 hp) will be available in 4.5L and 6.8L displacements and will be equipped with either a wastegate or variable geometry turbocharger depending upon the size of the engine. Compared to John Deere's larger engines, these models will feature smaller exhaust filters that can be engine-mounted or remote-mounted for increased flexibility. Engines in this power range will use an in-cylinder dosing system, while John Deere's 130 kW (174 hp) and above engines use an external dosing system.
John Deere engine models 130 kW (174 hp) and above include the 6.8L, 9.0L and 13.5L displacements.
Engine models and ratings for John Deere's full Interim Tier 4/Stage III B lineup include:
- PowerTech PWX 4.5L: 63 kW – 91 kW (85 hp – 122 hp)
- PowerTech PVX 4.5L: 93 kW – 129 kW (125 hp – 173 hp)
- PowerTech PVX 6.8L: 104 kW – 129 kW (140 hp – 173 hp)
- PowerTech PVX 6.8L: 138 kW – 187 kW (185 hp – 250 hp)
- PowerTech PSX 6.8L: 168 kW – 224 kW (225 hp – 300 hp)
- PowerTech PVX 9.0L: 187 kW – 224 kW (250 hp – 300 hp)
- PowerTech PSX 9.0L: 242 kW – 317 kW (325 hp – 425 hp)
- PowerTech PSX 13.5L: 298 kW – 448 kW (400 hp – 600 hp)
John Deere was the first engine manufacturer to widely commercialize cooled EGR and variable geometry turbocharger (VGT) technologies in off-highway applications, introducing them in 2005 with the start of Tier 3/Stage III A regulations. Since then, John Deere has accumulated significant operating hours with these technologies in off-highway applications and has established a proven field record of reliability.
"Our lineup of John Deere Interim Tier 4/Stage III B engines will deliver the performance, reliability, durability and low operating costs our customers have come to expect from our engines," said John Piasecki, director of worldwide marketing, sales and customer support for JDPS.
With their 56 kW (75 hp) and above Interim Tier 4/Stage III B engines featuring cooled EGR and VGT technologies, John Deere expects to maintain fuel-economy levels similar to those achieved with their Tier 3/Stage III A engines. John Deere's cooled EGR engines operate efficiently with ultra low-sulfur diesel as well as biodiesel blends, providing owners and operators with optimal performance and fuel-choice flexibility.
In choosing a solution for Interim Tier 4/Stage III B, John Deere elected not to use selective catalytic reduction (SCR). John Deere's cooled EGR and exhaust filter approach provides OEMs and end-users a proven solution with the best total fluid economy. The single-fluid approach of cooled EGR means owners and operators won't have to incur the cost of diesel fuel plus the additional cost for diesel exhaust fluid (DEF) required by SCR systems. "For Interim Tier 4/Stage III B, we're not only looking at fuel economy, we're taking into consideration total fluid consumption," Piasecki said.
John Deere has optimized the package size for its Interim Tier 4/Stage III B engines. All John Deere's engines with cooled EGR and an exhaust filter will require space similar to the Tier 3/Stage III A engine and muffler they replace.
JDPS will display a variable-speed fan mounted on a PowerTech PVX 6.8L engine. John Deere's variable-speed fan technology enables original equipment manufacturers to meet new not-to-exceed (NTE) emissions regulations associated with Interim Tier 4 while improving fuel economy and engine performance. Not-to-exceed limits, which began January 1, 2011, for 130 kW (174 hp) and above power ratings, require engines to stay within the emissions standard across the normal operating range of an engine. The NTE regulation effective date for 56 kW (75 hp) to 130 kW (174 hp) engines is January 1, 2012.
Engines below 56 kW (75 hp), which include the John Deere PowerTech E 2.4L and PowerTech M 2.4L and 4.5L engines, meet Interim Tier 4 and Stage III A emissions regulations without the use of cooled EGR or an exhaust filter. PowerTech M 2.4L and 4.5L engines feature a 2-valve cylinder head, a fixed-geometry turbocharger, mechanical unit pump fuel system (2.4L) and mechanical rotary fuel system (4.5L). PowerTech E 2.4L engines feature a similar 2-valve cylinder head and a fixed geometry turbocharger, but add full-authority electronic engine controls, an electronic unit pump fuel system, and are air-to-air-aftercooled.
Engine models and ratings in this power range include:
- PowerTech M 2.4L: 36 kW (49 hp)
- PowerTech E 2.4L: 45 kW – 49 kW (60 hp – 66 hp)
- PowerTech M 4.5L: 55 kW (74 hp)
John Deere is one of the few manufacturers that design both engines and their own construction, forestry and agricultural machines, providing them with unique expertise in integrating and servicing the engine, drivetrain, exhaust filter, cooling package and electronic control unit (ECU) for optimized efficiency. This integrated process maximizes performance, operator convenience, fuel economy and overall value for John Deere machine owners as well as John Deere OEM customers.
John Deere's full lineup of Interim Tier 4/Stage III B diesel engines is built upon simple, fuel-efficient and field-proven technologies enabling John Deere to meet increasingly stringent emissions regulations without sacrificing performance, reliability, durability or operator convenience. And John Deere's worldwide dealer network of more than 4,000 service locations is trained and prepared to fully support customers and their Interim Tier 4/Stage III B engines.
John Deere will also display pump drives from its Funk lineup of pump drives. The display includes:
- The 28000 single and double pump drives designed for a maximum input torque of 1017 Nm (750 lb-ft) and maximum input power of 268 kW (360 hp)
- The 59000 triple and four pump drives, which deliver a maximum input torque of 1695 Nm (1250 lb-ft) and maximum input power of 522 kW (700 hp)
The Funk lineup of pump drives offers more than 5,000 different configurations to meet countless equipment needs with quiet operation, performance and dependability.
Deere & Company (NYSE: DE) is a world leader in providing advanced products and services and is committed to the success of customers whose work is linked to the land — those who cultivate, harvest, transform, enrich and build upon the land to meet the world's dramatically increasing need for food, fuel, shelter and infrastructure. Since 1837, John Deere has delivered innovative products of superior quality built on a tradition of integrity. For more information, visit John Deere at its worldwide website at www.JohnDeere.com.
John Deere Power Systems (JDPS) manufactures and markets 30 kW to 448 kW (40 hp to 600 hp) industrial diesel engines and 56 kW to 559 kW (75 hp to 750 hp) marine diesel engines, as well as drivetrain components for use in a variety of off-highway applications. JDPS can be contacted at 1-800-JD-ENGINE (1-800-533-6446), or via e-mail at jdpower@JohnDeere.com. Information about the full line of JDPS engines and drivetrain components is available online at www.JohnDeere.com/jdpower.