These powerful engines now feature the company’s common-rail XPI fuel injection system, long used in Scania’s engines for trucks and industrial applications.
Svante Lejon is a senior technical adviser within Scania’s Research and Development division and his responsibilities include developing technical performance concepts for industrial and marine engines.
“The XPI system introduces more fuel into the cylinders in a shorter time, providing more power,” he says. “However, this also places higher demands on both the filtration system and the cleanliness of the fuel, as the system is more sensitive to particles.”
Lejon says the challenges involved have meant that Scania has not previously used common-rail technology in its marine solutions. “The fuel quality required for marine applications is different to that for trucks and industrial applications,” he says. “However, filter technology has now reached a level that allows for performance and uptime to be maintained at the high level that Scania expects.”
These marine engines are based on the company´s tried and tested equivalents for truck applications. They are the most powerful engines in the marine range, capable of producing between 700 and 1,150 hp for use in work boats. While this represents an increase in power on the previous generation, the physical size of the complete installation has remained the same making it easy to upgrade an existing installation to the new engine platform.
Scania’s modular system in combination with the company’s Engine Management System (EMS) allows for the same platform to be used in different applications. An engine solution can thus be tailored for completely different operating profiles without compromise.