Volvo Penta IPS - Two new engines

Have questions? Send us your request.

nauCAT is online nautical magazine. We do not sell products on our website (except advertisement space).

Pošalji poruku

Technical details
Producer:	Volvo Penta (SE)

Two new engines – the Volvo Penta IPS350 and IPS600 models – have been added to Volvo Penta’s highly acclaimed range of drive systems for boats. This means that the Volvo Penta IPS range now comprises a total of four engines, all of which are available with the new “joystick” feature. The Volvo Penta IPS will now be available for more types of boats – from sport cruisers to flybridge boats in sizes from approximately 32 to 48 feet.
“The attitude to boat engines has changed. Previously, top speed and acceleration were decisive, but today more is required. Boat purchasers are placing increasingly rigorous demands on engines – perhaps the key factor in the boating experience – in terms of environmental performance, safety and comfort,” says Lennart Sellman, product planner at Volvo Penta.
To reduce vibrations, the new engines have engine blocks reinforced with a special “ladder frame” and a cylinder head cast as a single unit. Common-rail fuel injection contributes to a quieter and more pleasant engine sound without diesel clatter. In the Volvo Penta IPS350 model, the balance shafts are integral (mounted in the engine block) to compensate for the engine’s rotational forces, resulting in considerably more even running.
The Volvo Penta IPS350 is an extension of the existing IPS range launched in the 2005 model year. The new engine is an adaptation of the D4-260 engine developed by Volvo Penta and launched in 2004. The D4-260 rapidly became a success and has been installed to date in boats from all the leading leisure craft manufacturers worldwide. Accordingly, there was a demand for the engine with Volvo Penta IPS. The Volvo Penta IPS350 is a four-cylinder diesel with turbocharger, intercooler and compressor. It has a capacity of 3.7 liters and a crankshaft output of 260 hp at 3,500 rpm.
The Volvo Penta IPS600 is an extension of the existing IPS range. The Volvo Penta IPS600 is based on the company’s own D6-435 diesel engine, which has been adapted – through the addition of a compressor and other modifications – to the Volvo Penta IPS system. The new engine represents the state of the art in modern diesel technology, with electronically controlled common-rail fuel injection, double overhead camshafts, four valves per cylinder, turbocharger, intercooler and compressor. The compressor produces high compression immediately during acceleration at low revs, which creates powerful torque. At higher revs, the compressor is disengaged and the turbo takes over. The result is outstanding acceleration with high torque throughout the entire rpm range.
During 2006-2007, the US and the EU are introducing emissions requirements for diesel engines in leisure boats. The Volvo Penta IPS350 and IPS600 – together with all the other models in Volvo Penta’s engine range – meet the rigorous emissions requirements. “But we decided to go a step further,” says Lennart Sellman. “Our engines go beyond fulfilling the requirements – for example by meeting one of the major challenges: acceleration without exhaust smoke. The low emissions values result from the advanced design, which combines electronics with a newly designed engine that enables precise control and full monitoring of engine combustion.”
But there are additional environmental gains. Thanks to the higher efficiency of the new IPS system, fuel consumption is up to 30 percent lower and noise levels and vibration up to 50 percent lower, compared with boats equipped with conventional inboard shaft installations, according to Volvo Penta’s calculations.
The engine and the controls, as well as instrumentation, are integrated via Volvo Penta’s EVC (Electronic Vessel Control) system. The new technology permits simple installation and gives high operational reliability. The CAN bus technology uses a serial data cable to replace conventional cabling for instruments and controls. Electronic controls for shift and throttle are standard.
Source: Volvo Penta