International Dredging Review

International Dredging Review
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To help customers meet hybrid emissions regulations for marine engines, John Deere Power Systems announced the upcoming release of a PowerTech™ 6090SFM85 rating for hybrid vessels with diesel power.

The variable speed rating will be 242 kW (325 hp) at 2000 rpm and will meet U.S. Environmental Protection Agency Marine Tier 3 and International Maritime Organization Tier 2 emissions standards. It will be certified to E3 propulsion test cycle for commercial applications used with variable pitch or electronically coupled propellers. This rating is for hybrid vessels that require a variable-speed generator drive engine to develop electrical power for any combination of electric propulsion, energy storage, hotel load and auxiliary electric loads.

To address the market-specific needs of inland waterway applications, John Deere will offer two marine generator drive ratings that are EU Stage V compliant on the PowerTech 4045TFM85 and 6068AFM85 models. The 4.5L rating will be 61 kWm prime at 1500 rpm and the 6.8L rating will be 117 kWm prime at 1500 rpm. Both prime ratings include a ten percent overload capability and conform to ISO 8528 prime power.

The 4.5L and 6.8L engines feature a water-cooled exhaust manifold and turbocharger — both of which create a cool and quiet environment for passengers and crew. Both engines are type approved by the following Marine Classification Societies: ABS, BV, CCS, DNV-GL, and LR.

The EU Stage V generator drive ratings below 130 kW are anticipated to be available to order later this year, with production set to begin in early 2020.

Keeping its global customers in mind, John Deere is prepared to meet China Stage I marine emissions standards. These standards apply to new marine engines at or above 37 kW that are registered in China for operation in Chinese territorial waters.

John Deere will release new emission label options for 50 Hz generator drive ratings for the PowerTech 4045TFM85, 4045AFM85 and 6068AFM85 engines, which will comply with China Stage I marine emissions standards. The new emission label options are expected to be available in early 2020.