Engine
The hovercraft is equipped with two KAMAZ-667 engines, each with a power of 300 hp.
Four-stroke six-cylinder diesel engine with an electronic Common Rail fuel supply system, with an in-line arrangement of cylinders and pistons rotating one common crankshaft, with a lower camshaft. The Cummins 6isb 300 engine is designed for installation in medium- and heavy-duty trucks. In domestic industry, it is used as a power unit for vehicles such as KAMAZ 6460 and 6520. The engine has a closed-type liquid cooling system with forced circulation. The lubrication system is combined: under pressure and splashing.
The rated power of the KAMAZ-667 engine is 224 kW, which in terms of horsepower is equal to 300 units. This figure, for clarity, is included in the motor markings. The specific power of the 6isb 300 is 0.36 kW per 1 kg of engine weight, and the specific torque is 1.45 Nm/kg.
To increase power parameters, the Cummins power unit is equipped with a VGT turbocharger, which, in addition to its main function, helps save fuel when operating at full power.
For KAMAZ-667, the length/width/height are within 1260 mm, 930 mm and 1045 mm, respectively. The weight when fueled is 616 kg, while the weight of the “dry” engine is only 522 kg. The relatively light weight of the engine allows for more efficient use of the lifting capacity of the hovercraft.
Engine oil consumption when operating at rated power (300 hp) is 0.1% of fuel consumption.
Currently, the engine is produced at the KAMA-Diesel plant in Naberezhnye Chelny.