PowerTech PSL 6.8L engines feature superior power density, performance and fluid efficiency for gen-set applications. The PowerTech PSL technology platform includes series turbochargers for improved performance and an Integrated Emissions Control system that consists of cooled EGR and DOC/SCR.
These engines use diesel oxidation catalyst (DOC) and selective catalaytic reduction (SCR) technology to meet Final Tier 4 emission regulations. They meet customer performance without the need for a diesel particulate filter (DPF).
Heavy-duty components that are usually found in our larger engines are used throughout our generator drive engine line. Many of our DOC/SCR engines feature top-liner cooling, steel pistons, and variable-speed fan drives.
Fresh air is first drawn into the low-pressure turbocharger (fixed geometry) and compressed to a higher pressure. The compressed air is then drawn into the high-pressure turbocharger (VGT or WGT), where the air is further compressed. The high-pressure air is then routed through a charge air cooler and into the engine's intake manifold. By splitting the work between two turbochargers, both can operate at peak efficiency and at slower rotating speeds —lowering stress on turbocharger components and improving reliability. Series turbocharging delivers more boost pressure than single turbocharger configurations which results in higher power density, improved low-speed torque, and improved high altitude operation.
The HPCR fuel system provides variable common-rail pressure, multiple injections, and higher injection pressures up to 2,500 bar (36,000 psi). It also controls fuel injection timing and provides precise control for the start, duration, and end of injection.
This is the most efficient method of cooling intake air to help reduce engine emissions while maintaining low-speed torque, transient response time, and peak torque. It enables an engine to meet emissions regulations with better fuel economy and the lowest installed costs.
From the day your gen-set begins operation, it's warranted for uninterrupted service. We offer a 2-Year/2,000-Hour and 1-Year/Unlimited-Hour Warranty. In addition, extended warranties are available under certain conditions. Be sure to register your engine for warranty support at JohnDeere.com/enginewarranty.
Ordering operating, safety, technical, and service manuals is easy!
Look up parts quickly and easily using the John Deere Parts Catalog.
We strive to ensure that John Deere products are of exceptional quality. Safety is our top priority.
It could be yours! Contact a Papé Machinery Dealer today for buying options.