John Deere Power Systems has announced the upcoming release of a PowerTech 6090SFM85 rating for hybrid vessels with diesel power.
The variable speed rating will be 242kW (325hp) at 2000rpm, will meet U.S. Environmental Protection Agency Marine Tier 3 and International Maritime Organization Tier 2 emissions standards, and will be certified to E3 propulsion test cycle for commercial applications used with variable pitch or electronically coupled propellers.
This rating is ideal 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 also be offering two marine generator drive ratings that are EU Stage V compliant on the PowerTech 4045TFM85 and 6068AFM85 models. The 4.5L rating will be 61kWm prime at 1500rpm and the 6.8L rating will be 117kWm prime at 1500rpm. Both prime ratings include a 10% overload capability and conform to ISO 8528 prime power.
John Deere has also announced its release of new emission label options for 50Hz 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.
By Jake Frith