GAS ENGINES

NEW 12-CYLINDER VERSION OF THE V170G DIESEL ENGINES AVAILABLE FOR GENSETS

Isotta Fraschini is completing test runs for the 12cylinder version of its V170G diesel engine. This unit completes the brand new V170G series of industrial engines and will be presented to genset manufacturers this month (September 2022). The series comprises four-stroke diesel engines, 12- and 16-cylinder, with direct fuel injection and supercharged with exhaust gas turbochargers with supercharging air cooling system. According to the manufacturer, the 12-cylinder engine has a displacement of 50.4 L (170mm bore and 185mm stroke) and electrical power output up to 1520 kWe for prime power and up to 1653 kWe for stand-by power at 1800 r/min. The 16-cylinder engine has a displacement of 67.2litre (170mm bore and 185mm stroke) and electrical power output up to 2019 kWe for prime power and up to 2204 kWe for stand-by power at 1800 r/min. These engines feature a cooling circuit with engine-driven centrifugal pump and forced engine lubrication via an engine-driven gear pump. The fuel injection system utilizes high-pressure injection pumps and feed pump. The engine speed is managed by an electronic governor. When the 16-cylinder 16V170 G-drive was launched in 2021, Isotta Fraschini’s CEO Giovanni Bruni declared that company plans included the development of more units in the range above 1 MW, running with hydrogen fuel or using fuel-cells and targeting mobile markets as well, including railway applications. “The new engine using hydrogen fuel is already in development and we expect that within the next three, four years will be ready for the market,” he commented.

“The new engine will reach 4 MW output power in its more powerful version.” One good example of the company’s technical expertise is Isotta’s V 1708 C2 ME. This is a 4-Stroke diesel engine with Bosch High Pressure Common

Rail fuel injection system. It features a single modular cylinder head with 4 valves to optimise combustion and reduce fuel consumption and pollutant emissions, in full compliance with the most stringent regulations in force. Isotta.Fraschini has developed a supercharging system optimised for an efficient performance provision in all operating conditions, even in extreme environmental conditions. The engine provides low level of stress to increase overall reliability. This is an engine with high power to weight ratio. On request this can can be customised to meet Military Specifications, reports

Isotta.Fraschini. On December 14, 2020, Freedom-class Littoral Combat Ship (LCS) 23, the USS COOPERSTOWN for U.S. Navy, completed acceptance trials in Lake Michigan. Key to its operational systems is an LCS 23 Isotta Fraschini Motori genset. The 2020 trials included a fullpower run, maneuverability testing, and surface and air detect-to-engage demonstrations of the ship’s combat system. Major systems and features were demonstrated, including aviation support, small boat launch handling & recovery and machinery control and automation.

The Freedom-class vessel is powered by two Rolls-Royce MT30 36 MW (48,000 hp) gas turbines, two Colt-Pielstick 16PA6B 6.8 MW (9,100 hp) diesel engines and 4 Rolls-Royce waterjets. The vessel can reach a top speed of 47 knots (87 km/h; 54 mph) with a cruising range of 3,500 nmi (6,500 km; 4,000 mi) at 18 knots (33 km/h; 21 mph). It also features eight RGM-184A Naval Strike Missiles, 24 AGM-114L Hellfire missiles (planned part of SUW module) and one Lockheed Martin 150 kw High Energy Laser. Since 1904 Isotta Fraschini has produced engines for various applications: from the marine and aeronautic to the automotive which in 1920 made the Company known and admired throughout the world. The current headquarters in Bari has been a production site since 1964. Production has changed over the years. There have been different applications at different times, aiming always at the same goals: quality and product reliability. Recent years have seen the Isotta Fraschini Motori SpA brand provide a maximum commitment of personnel and resources for the adoption of avant-garde production processes designed to meet the present-day requirements of the market. Isotta Fraschini believes it can offer over 100 years of experience in design, production, support and quality - these are an integral part of every engine that is delivered for power generation applications, reports the company.

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