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November 21, 2011updated 10 Mar 2022 1:31pm

Caterpillar launches C175-16 marine propulsion engine?

Caterpillar has launched a new C175-16 marine propulsion engine, the latest in the company's line of high-performance engines designed to meet EPA Tier 3 and IMO Tier II emissions requirements.

Caterpillar has launched a new C175-16 marine propulsion engine, the latest in the company’s line of high-performance engines designed to meet EPA Tier 3 and IMO Tier II emissions requirements.

The new marine propulsion engine comes in power ratings of 2,001 – 2,168kW at 1,600rpm and 2,239 – 2,550kW at 1,800rpm, extending the firm’s high-speed portfolio beyond the existing 3516C-HD engine.

The new engine is based on the C175 version, which the company offers for the other non-road applications to meet EPA Tier 4 requirements.

The company said that the C175-16 can be suitable for offshore support vessels, tugs and workboat applications, and features technology advancements and updates to ensure maximum productivity and minimal environmental impact.

Additional features of the C175-16 include: turbocharged and aftercooled aspiration; MCS-approved monitoring, alarm and protection system; cross-flow head design; and simplified electrical system.

Caterpillar Marine Power Systems product director Bob Hallengren said the C175 marine propulsion engine has been designed to improve vessel profitability by providing durability with unmatched power output to ensure the company’s customers can maximiae profit in their offshore and commercial operations.

“Naval architects can design vessels around the Cat C175 engines with the confidence that these engines will deliver in terms of power and load carrying capability,” Hallengren said.

Caterpillar Marine Power Systems previously won a contract to deliver 2x 6 M 25 C and 2x 9 M 25 C propulsion engines for an Ostensjo Rederi offshore supply newbuild.

Each 6 M 25 C engine will provide 2,000kW at 750rpm while the 9 M 25 C will each provide 3,000kW at the rate of 750rpm of power.

Each of the engine features a new air injection system, which is designed to ensure load response remains in a low rpm range, and are packaged with the Siemens BLUEDRIVE PlusC diesel electric propulsion systems.

It features the company’s Acert technology, with optimised turbocharging and after-cooling to provide reliable power output while the efficient combustion will reduce engine wear and maximises fuel economy, giving the maximum energy from each injection cycle.

New C175-16 also features the Cat common rail fuel system, enabling low emissions at all levels and requires no after-treatment to comply with regulations.

It comes with a bore of 175mm and a stroke of 220mm, and is designed for high efficiency with high-propulsion output from a high-speed engine platform.

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