Latest auxiliary from Cummins Marine
Cummins has announced the latest addition to its Quantum series product line and the company’s newest marine auxiliary engine, the QSB7-DM, a 6.7litre engine designed for reliability, durability and low cost of ownership.
Rated at 98kW to 210kW, the QSB7-DM is targeted at ship’s service and emergency genset power applications. All ratings are IMO Tier II and EPA Tier 3 certified, thanks to the combustion technology which reduces emissions in-cylinder without the need for after-treatment.
The QSB7-DM is certified by ABS, Bureau Veritas, DNV, Germanischer Lloyd and Lloyd’s Register. It was designed to meet SOLAS and UMS requirements. Built at Darlington, UK, the QSB7-DM is scheduled to begin production in mid-2012.
The high-pressure common rail electronically-controlled fuel system provides constant high injection pressure regardless of engine speed or load condition, reducing noise and vibration for quiet operation and faster load acceptance. Single loop, low temperature after-cooling eliminates the need for two keel coolers and lowers emissions. Operators have the choice of heat exchanged, keel cooled, and fan drive for radiator cooled applications. The cast water cooled exhaust manifold lowers surface temperatures to levels required by SOLAS, while improving performance, and the rear engine-mounted water cooled turbocharger from Cummins Turbo Technologies has been optimised for marine applications.
The QSB7 auxiliary is designed for integration with Cummins C Command HD basic and Elite Plus class-approved panels. Based on C Command architecture originally designed for high horsepower engines, C Command HD instrument panels include a selection of monitoring and display options to help operators protect and enhance engine operations and manage operating costs by logging critical operating parameters such as engine load, duty cycle, speed and fuel consumption, while providing diagnostic and prognostic capabilities. A common point of connection in the customer interface box simplifies the link between engine electronics and vessel systems.
“Operators can feel confident knowing Cummins developed a marine engine based on an existing base engine that has proven successful in demanding industrial and power generation applications since production began in 2007,” says Cummins chief engineer – commercial marine, Mike Aufdermauer.
The first QSB7 marine genset installation will be for Weeks Marine of Cranford, New Jersey and Covington, Louisiana in late 2011. A radiator-cooled generator set will be installed on the BT105 floating living quarters barge and will run continuously throughout the duration of a 12-month field test. Supporting dredging personnel, the barge will operate between Panama City and the tip of Texas in the Gulf of Mexico.
