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Engines
Caterpillar goes
electric
Caterpillar has announced its latest step in the evolution
of the engine line with the launch of the Cat 3512C and
3516C Diesel Electric Propulsion (DEP) engines, to better
meet customer requirements.
Available for a variety of commercial applications and
megayachts, the DEP engines are based on the 3500 engine
platform while meeting EPA Tier 2 and International
Maritime Organisation (IMO) Tier I regulations.
Manufactured at the Lafayette Engine Center
in Lafayette, Indiana, USA, the constant-speed
DEP engines offer the latest in EUI fuel system
capabilities and ADEM A3 Electronic Control
Units (ECU). The V-12, 4-stroke 3512C engines
are available at 1360kW, 1550kW, and 1700kW, and
the V-16, 4-stroke 3516C engines are available at
both 2000kW and 2250kW. All engine ratings are
certified to the E2 emissions cycle. The electronic
“power station” concept will create efficiencies
Each crane is delivered as a complete unit tested between the control units, unit injectors,
electrically and mechanically before delivery ready instrumentation and displays to perfectly balance
for installation onboard. power supply, fuel consumption and exhaust
emissions at any given load.
The largest benefit of the diesel electric power
The 30tonne SWL MacGregor GLBE cranes are plant may be the redundancy of the engine power
destined for eight 16,900dwt bulk carriers under generation because the diesel electric engines are
construction in China for Polish shipowner Polsteam turned on only as they are needed. So if an engine is
(PZM). They are scheduled for installation from the lost, there is still enough power generated to provide
end of 2010 to 2012. power for shaft lines and vessel electronics.
“The order was secured when PZM, one of the Additionally, the EUI fuel system capabilities
world’s biggest dry bulk shipowners and operators, and ADEM ECU will deliver more available power
ordered eight bulk carrier vessels from Taizhou Sanfu while achieving better fuel efficiency. Further
Ship Engineeering Co., Ltd. in China,” says Paul reduction in costs and maintenance, the time
Söderstedt, Cargotec sales manager for bulk ships. between overhaul is increased as DEP engines are
“The crane order is a significant breakthrough in the not always running at full load there is no physical
bulk carrier market as it is important recognition contact with propeller and engine.
of Cargotec’s new environmentally-friendly GLBE In addition, the emission levels achieved with
electric crane, which is based on proven MacGregor DEP engines enable shipping companies to obtain
designs offering improved overall efficiency and low special environmental certification with the Marine
power consumption.” Classification Societies, such as DNV Clean Design,
The electric cranes inherit the familiar characteristics GL Green Passport, LR Character N or the German
of several generations of MacGregor wire-luffing cranes; Government’s Blauer Engel.
all machinery is enclosed within the crane housing,
ensuring safe operation and ease of maintenance. Contact Caterpillar, 100 North East Adams Street,
Peoria, Illinois USA 61629.
Contact Cargotec Corporation MacGregor, Sörnäisten Tel +1 1 309 6751000
rantatie 23, PO Box 61, FI-00501 Helsinki, Finland.
www.cat.com
20 The Naval Architect January 2010
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