The 3512C Diesel Electric Propulsion Engine

Caterpillar (NYSE:CAT) said today that it has secured a contract to power 16 offshore supply vessels for use in the Brazilian offshore market. Caterpillar received orders requiring a total of 56 Cat and MaK Diesel Electric Propulsion Engine (DEP) generator sets for offshore supply vessel newbuilds. The vessels include four oil spill recovery vessels (OSRV) and 12 platform supply vessels (PSV).

The Cat diesel generator sets ordered include the 3512C DEP in two power ratings: 1550 ekW at 1800 rpm (60Hz) and 1700 ekW at 1800 rpm (60 Hz); and the 3516C DEP, rated at 2000 ekW at 1800 rpm (60 Hz). MaK DEP power solutions ordered include the MaK 6 M 25 C DEP generator set  rated at 1824 ekW at 720 rpm (60Hz) and the 8 M 25 C generator set, rated at 2433 ekW at 720 rpm (60Hz).

“The Cat and MaK DEP solutions are perfectly suited for the Brazilian offshore market, reliably delivering power and efficiency for offshore vessels,” said Carlos Lima, Caterpillar Marine Power Systems Brazil manager. “We are proud to utilize local content in our DEP packages and serve our offshore customers in Brazil.”

The constant-speed DEP engines offer the latest in EUI fuel system capabilities and state-of-the-art ADEMTM A3 Electronic Control Units (ECU).  The vee-12, 4-stroke 3512C engines are available at 1360 ekW, 1550 ekW, 1700 ekW and 1825ekW, and the vee-16, 4-stroke 3516C engines are available at both 2000 ekW and 2250 ekW.  All engine ratings are certified to the E2 emissions cycle, and meet EPA Tier 2 and IMO Tier 1 regulations.  The electronic power station concept creates efficiencies between the control units, unit injectors, instrumentation and displays to perfectly balance power supply, fuel consumption and exhaust emissions at any given load.

The MaK DEP products feature an ultra-clean, HFO capable burning, long-stroke design and compact generator set design and unrivalled load pickup capabilities. The design enables customers to achiever longer intervals between service resulting in lowered overall costs of ownership. The MaK DEP products also feature low fuel consumption and increased overall efficiency.

“Caterpillar is able to supply a complete power configuration to our customers, combining Cat and MaK diesel electric propulsion engines to create the most effective, efficient solution available in the marketplace,” said Eric D. Hermann, Caterpillar Marine Power Systems sales manager. “The Cat 3500 engine series and MaK main engines are recognized as the leading choices for the commercial marine industry because of their proven productivity, durability and reliability.”

Cat dealers Sotreq, based in Brazil, and Louisiana Machinery, led the Caterpillar efforts on the sale and will continue to deliver service and support on the generator sets.

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