Gen-drive engines

John Deere Power Systems has introduced five new PowerTech 2.9-L generator-drive engines with power ratings from 31 to 55 kWm (41 to 74 hp). The new series offers customers a range of reliable, compact, emissions-compliant choices for prime-power or standby applications. The gen-drive engines include models that meet Tier 4 Final, Tier 4 Interim, and Stage III A emissions regulations; non-emissions certified models are also available for non-regulated markets and stationary applications in the EU. The new 2.9-L Tier 4 Interim and Stage III A engines as well as non-certified engines feature a mechanical fuel injection pump and a robust design. Heavy-duty features include replaceable (wet) cylinder liners that provide improved heat dissipation and are precision-machined for longevity. The new 2.9-L series has moved from imperial to metric hardware. The PowerTech 3029HFG03 Final Tier 4 engine features an electronic high-pressure common-rail fuel system that provides higher injection pressures up to 1600 bar (23,000 psi). It also utilizes an exhaust filter—consisting of a DOC and DPF—that delivers enhanced block loading characteristics.

Continue reading »