New Volvo Penta D11 – more power with less emissions
2013-08-01
Volvo Penta
Now, Volvo Penta launches a completely new generation of the proven D11 series. The new engine program has a peak power of 725 hp, and with a more powerful torque, improved drivability and reduced noise levels it becomes a strong addition to Volvo Penta’s world-leading inboard program. Naturally, the new generation also meets the world’s soon strictest emission regulations.
Volvo Penta's new D11 series is based on the latest technology within the Volvo Group and has been further developed and optimized for marine use by Volvo Penta's development team. The D11 series is expanded from today’s 670 horsepower to be offered in no fewer than three power classes: 625, 670 and 725 hp.
The Volvo Penta D11 is a compact, powerful engine series with new and improved basic design. In addition to a larger number of power classes, the in-line, six-cylinder diesel engines have been boosted with a large number of technical upgrades.
”We have further enhanced our twin-entry turbo where each exhaust pulse now is used maximally to provide charging pressure. This gives an extremely powerful torque already at low revs. The engine responds instantly to control commands and provides an altogether clearly improved drivability and stronger acceleration,” says
Thomas Lantz, Chief Product Manager at Volvo Penta.
The Volvo Penta D11 will become the natural choice for flybridge yachts and sports cruisers between 45 and 55 feet. These boats weigh around 20 tons, which places high demands on the engines’ torque when it comes to getting the boats on the plane.
The high torque at low rpms gives rapid acceleration to the plane. This is important for both safety, fuel consumption and comfort,” says Thomas Lantz.
With the new D11 series, the onboard comfort has also been improved.
“Thanks to a new and more efficient turbo and air filter with improved noise reduction, we reduce the perceived noise levels significantly with the new D11. At the same time, the robust design helps minimize the on-board vibrations," says Thomas Lantz.
More power with less environmental impact The equation more power with less environmental impact may seem impossible to achieve, but with the new D11 this is exactly what Volvo Penta has managed to accomplish.
“With advanced technology we manage to create an optimized air and fuel pressure ratio, which gives very efficient combustion. And with increased intercooling, we acquire more engine power altogether,” says Thomas Lantz.
Thanks to the efficient combustion, the new D11 series comply with the world’s most stringent environmental legislation, U.S. EPA Tier 3, which comes into force in 2014. The particulate emissions will then be 40 percent lower compared with today’s levels.
Upgraded basic construction The new D11 series will by far be able to live up to our customers’ expectations regarding the qualities that characterize Volvo Penta in terms of safety, reliability and service life.
“We have, among other things, developed a strong and robust engine block and a new cylinder head with improved cooling, which gives the engine a more even service temperature. The result is a very reliable engine with a long life,” says Thomas Lantz.
Integrated with the latest EVC The engines use the latest generation of Volvo Penta’s electronic platform, the EVC (Electronic Vessel Control). The latest generation of EVC enables an additional number of features for increased security and control, and improved functionality.
For both shaft installation and Volvo Penta IPS The engine series will be available for both traditional shaft installations and Volvo Penta IPS. Based on the new D11, the IPS800 and IPS950 are also launched. In addition to the benefits of more power, they fully utilize the unique advantages of the IPS concept in terms of fuel efficiency, comfort and driving pleasure.
Simple installation and service All engines in the series have the same installation dimensions as before which is beneficial to the boat builder. All fuel and oil filters, oil dipstick and oil filler are gathered in back of the engine where they are easily accessible for servicing. This also means that the same engine specification can be used for port and starboard installations.
Technical data
D11-725 Crankshaft output: 725 hp (533 kW) at 2500 rpm
Max torque: 2350 Nm at 1600–2100 rpm
Configuration: In-line, 6-cylinder diesel with electronically controlled unit injectors, twin-entry-turbo and intercooler
Cylinder volume: 10.84 liter
Emissions: EU RCD and US EPA Tier 3
D11-670 Crankshaft output: 670 hp (493 kW) at 2450 rpm
Max torque: 2240 Nm at 1600–2100 rpm
Configuration: In-line, 6-cylinder diesel with electronically controlled unit injectors, twin-entry-turbo and intercooler
Cylinder volume: 10.84 liter
Emissions: EU RCD and US EPA Tier 3
D11-625 Crankshaft output: 625 hp (460 kW) at 2400 rpm
Max torque: 2200 Nm at 1600–2100 rpm
Configuration: In-line, 6-cylinder diesel with electronically controlled unit injectors, twin-entry-turbo and intercooler
Cylinder volume: 10.84 liter
Emissions: EU RCD and US EPA Tier 3
Facts Tier 3 – background: Tier 3 originates from the U.S. Clean Air Act written by the Environmental Protection Agency from 1990. In this, a multi-step plan with a number of “tiers” – deadlines for engine manufacturers – was established. Shortly thereafter, the EU adopted a similar multi-step plan. To be approved according to the Tier 3 requirements, the levels of particulate emissions must be reduced by 40% and nitrogen oxide emissions must be reduced by 20% compared with previously (Tier 2), which means an emission ceiling of 5.8 g / kWh and NOx. The emissions requirements associated with the different tiers are a guarantee that the work towards cleaner air and environment steadily continues.
D11-725 - High resolution image 1
D11-725 - High resolution image 2
D11-725 - High resolution image 3
D11-725 - High resolution image 4
For further information, please contact Ann-Charlotte Emegård, phone: +46 31 323 42 19, E-mail: ann-charlotte.emegard@volvo.com
