Volvo Penta is expanding its popular IPS propulsion system with a further two power classes, IPS1050 and IPS1200.
Based on the Volvo Group's 13-litre engines, the two new IPS drive packages generate the equivalent of 1,050 and 1,200 horsepower respectively. This means that Volvo Penta can now offer the IPS system for boats in excess of 100 feet LOA.
Larger engines with higher power output and higher torque make large demands on the drive units. With this in mind, the underwater body and propellers have been developed with the help of advanced computerised models together with extensive cavitation tunnel tests as well as tests in boats. The IPS1050 and IPS1200 offer improved performance over traditional shaft drives, quieter operation, lower vibratiuion levels, lower fuel consumption and lower total emissions.
The engine for the new power classes is Volvo Penta's D13, a 13-liter diesel with dual-stage turbo technology developing 800 and 900 horsepower, respectively. The first stage in its sophisticated dual-stage turbo design is a twin-entry turbo that enables pulse charging – the power in each exhaust pulse is used to provide pulse pressure – which results in a very high torque from low rpm. At higher rpm, a second turbo kicks in so that the engine retains its power even at high rpm.
EMS 2, the new engine control system developed by Volvo Penta, regulates fuel injection 100 times per second. The system controls the unit injectors, one per cylinder, which operate at a pressure of as much as 2000 bar and atomize the fuel for optimum combustion. Total emissions satisfy the EU RCD and US EPA Tier 2 regulations and are also in line with the stringent EPA Tier 3 regulations that will come into force in 2012.
The new IPS1050 and IPS1200 will be available on the market from autumn 2010.
Volvo Penta launched its IPS system in 2005, with units based on the company's four- and six-litre diesel engines. Last year, the company added two new power classes with larger drive units based on 11-liter engines.
Along with the new IPS units, Volvo Penta also announced its new Dynamic Positioning System, which helps the driver to maintain the boat's position by just pressing a button. The Dynamic Positioning System is controlled by special software integrated in Volvo Penta's electronic platform. An antenna with twin GPS receivers supplies the system with exact information on the boat's position and with the help of this information the software controls engine revs, shift positions and the drive units. The system is ideal for situations where boats must maintain a static position, such as when waiting to enter a lock, or for a bridge to open.