(CHESAPEAKE, Va.) — Volvo Penta has launched the new D8, expanding its range of diesel engines for a variety of high-speed workboats and patrol boats.
Based on the latest Volvo technology, the eight-liter engine expands the offering between the D6 and D11 models, for applications that require low weight with high power in order to achieve peak performance for propeller, waterjet and Volvo Penta IPS applications.
The new engine has been designed for use in planing craft which need to accelerate quickly, with low emissions and high comfort.
Commercial uses include fast patrols, coast guard and rescue launches, police and ambulance boats, water taxis and high-speed passenger ferries, fishing boats, and offshore supply vessels.
The new engine for marine commercial use is based on the Volvo Group’s D8 platform, which has been deployed in the trucks and buses divisions, as well as Volvo Penta’s own off-road industrial applications.
The engine has been further developed, optimized and tested for commercial use by Volvo Penta's development team at the Volvo Penta Marine test center.
It is an in-line six-cylinder engine with a cylinder capacity of 7.7 liters, twin-entry turbo and seawater-cooled heat exchanger. The engine has a common rail system working up to 2,000 bars. The injection is electronically controlled which allows for more flexibility. Pre-, main and post-injection are essential aspects for the engine’s power, torque, fuel efficiency, low noise and emission levels.
Benefits of installing the D8 include:
• High power and torque rise — for speed and excellent load-carrying capabilities.
• High low-end torque and wide rpm range — for excellent maneuverability and acceleration.
• Reliable — for maximum uptime.
• Low fuel consumption — for low cost of operation.
• Low noise levels — for good on-board comfort for crew and passengers.
“The high power-to-weight ratio together with the new common rail injection system where the nozzle has been optimized, together with a piston bowl of re-entry type, will provide excellent fuel efficiency,” said Anna Pettersson, chief project manager for Volvo Penta’s marine engines. “In the commercial sector particularly, economic use of fuel is a great benefit to our customers who consider the total cost of ownership of their boats.”
Volvo Penta has developed three power outputs for the D8 inboard range — of 450, 510 and 550 hp. They are designed to conform to the EPA Tier 3 emissions standards, as well as IMO II and EU IWW. EPA certificates are expected in January 2017.