John Deere Combines

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54 John Deere Combines: Engines PowerTech Plus: The ultimate in emissions compliance, performance and fuel economy When it comes to getting the most performance with the least fuel consumption and emissions, nothing beats the John Deere PowerTech Plus engine. Available in several sizes ranging from 6.8 L up to 13.5 L, our PowerTech Plus engines include cooled exhaust gas recirculation (EGR) and variable geometry turbocharger (VGT) technologies for the ultimate in Tier 3/Stage II A efficiency and performance. The higher an engine’s peak combustion temperature, the greater the amount of NOx created. Cooled EGR is an effective method of lowering peak combustion temperature. To offset the increase in particulate matter caused by the reduction of NOx, we’ve taken the following steps: • Increased fuel injection pressure by using high-pressure common rail fuel systems and electronic unit injector technology • Improved power cylinder components, resulting in reduced oil consumption • Adopted VGT to control transient smoke • Improved the shape of the combustion bowl to maximize air/fuel mixing and optimize the combustion process, reducing the amount of emissions. The PowerTech Plus family of Tier 3/Stage II A engines meet regulations, offers you flexibility and cost-efficiency, and gives you exactly the rugged performance you need, especially in troublesome and hilly conditions.
John Deere Combines 55 PowerTech Plus Technology EGR cooler 4-Valve head EGR Valve Variable geometry turbocharger ensures greater low-speed torque, faster transient response, higher peak torque, and best-in-class fuel economy. An inside look at PowerTech Plus. As a leading manufacturer of engines for agriculture, John Deere has perfected the PowerTech Plus with all these features to meet strict emissions standards with better fuel economy and performance as well as the lowest installed costs. Narrow vane openings increase boost at low speeds and load. Wider vane openings increase effi ciency at high speeds and load.
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John Deere Combines Raising your ex
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John Deere Combines

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