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22.04.2013

Perfect engine from John Deere: PowerTech ™ PWL 4.5L engine

John Deere PowerTech™ PWL 4.5L John Deere PowerTech™ PWL 4.5L. Photo source www.mainpump.com

According Engine Diesel John Deere Power Systems tore the mask from its newest PowerTech ™ PWL 4,5L engine which meets environmental standards of Final Tier 4/Stage IV. The motor is added to the previously demonstrated range of John Deere engines Final Tier 4/Stage IV with power output ranging from 48 to 600 hp.

John Deere PowerTech ™ PWL 4.5L

Interestingly, that the engine is not equipped with a diesel particulate filter. The need for it has disappeared due to the increased efficiency of the SCR technology and the optimization of the combustion system.

PowerTech PWL with working volume at 4.5 L has the third generation of Integrated Emission Control system. This technology implies a selective catalytic reduction system (SCR), diesel oxidation catalyst (DOC) and cooled exhaust-gas recirculation (CEGR). This system will be installed only on engines with power ratings 75 - 140 hp. Engines with lower power output (48 - 74 hp) will be equipped with a DOC only, without SCR and CEGR.

John Deere PowerTech ™ PWL 4.5L

John Deere motors, referred to manufacturer, will has a small consumption of diesel exhaust fluid per liter of fuel, namely 1 - 4%, depending on the circumstances. This gives the advantage to use a smaller DEF-tank and to extend the life of the exhaust filters.

John Deere engines, certified according to Final Tier 4/Stage IV

Engine

Power, kW/HP.

Turbocharger

CEGR

Exhaust filter

Aftertreatment of particulate matter

SCR

PowerTech EWX 2,9L

36-55/48-74

WGT

Нет

Да

DOC / DPF

Нет

PowerTech EWX 4,5L

55/74

WGT

Нет

Да

DOC / DPF

Нет

PowerTech PWL 4,5L

63-104/85-140

WGT

Да

Нет

DOC

Да

PowerTech PSS 4,5L

93-129/125-173

Series

Да

Да

DOC / DPF

Да

PowerTech PVS 6,8L

104-187/140-250

VGT

Да

Да

DOC / DPF

Да

PowerTech PSS 6,8L

168-224/225-300

Series

Да

Да

DOC / DPF

Да

PowerTech PSS 9,0L

187-317/250-425

Series

Да

Да

DOC / DPF

Да

PowerTech PSS 13,5L

309-448/414-600

Series

Да

Да

DOC / DPF

Да

John Deere PowerTech ™ PWL 4.5L

By the way, here`s a transcript of John Deere abbreviations for you. This refers to the three letters after the name of the motor model. The first letter indicates the technology:
• P – PowerTech Plus
• E – PowerTech E

The second letter symbolizes the type of turbocharger:
• V – variable geometry turbocharger
• S – series turbocharger
• W – wastegate turbocharger

The last symbol means PM aftertreatment:
• S – exhaust filter and SCR
• L – DOC and SCR
• X – exhaust filter

More photos




www.mainpump.com

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