V-2 tank engine

Soviet diesel tank V-12 engine designed at the Kharkhiv Locomotive Factory by construction team led by Konstantin Chelpan.V-2 was the first high speed diesel engine for tanks developed in the Soviet Union and used for the majority of its main battle tanks during WW2 and Cold War era. It was designed specialy for medium tank T-34, but later it was used in many variants in other Russian tracked vehicles, such as SPG’s SU-85, SU-100, SU-122,  heavy tanks KV-1S, IS-1, T-10 and IS-2 and the vehicles based on them, such as ISU-122 and ISU-152.

Later it became the most important tank engine ever made and it is used in tens thousands  untill now in numerous countries. License production was undertaken by Poland in PZL Wola powerplant factory.

Basic nad most important variants:

1) V-2: Initial production version, 1937. Used in the BT-7M..

2) V-2-34: V-2 with revised hull mounts, fuel and cooling connectors and refined clutch, 1939. Used in the T-34, SU-85 and SU-100. It produced 500 hp @ 1800 RPM.

3) V-2K: V-2 with increased injection pressure and higher engine speed, 1939. Used in the KV-1 and KV-2. It produced 600 hp.

4) V-2V: V-2 detuned for use in lighter vehicles, 1940. Used in the Voroshiloviets artillery tractor. It produced 375 hp.

  • 5) V-2-IS: V-2 with stronger cylinders and heads, improved fuel pump, larger radiator and oil cooler and modified hull mounts, 1943. Used in the IS-2, ISU-122 and ISU-152, and T-10. It produced 520 hp.

6) V-2SN (supercharger systems): V-2 with a supercharger from theMikulin AM-38 aircraft engine, 1940. Used in the KV-3 prototype. It produced 862 hp.

7) V-2-450AV-S3: V-2 modified for oil drilling equipment. It produced 450 hp.

8) V-54 and V-55: modified V-2 engines for T-54 and T-55 MBTs respectively

9) V-46: highly modified, most modern version of V-2 family at the time, designed for T-72 tanks. Important change introduced with the V-46 is the usage of a mechanically driven centrifugal compressor N-46 with 780 hp.

Displacement 38.8 L (2,367.7 cu in)

Bore 150 mm (5.9 in)

Stroke 180 mm (7.1 in) left cylinder group and 186 mm (7.3 in) right cylinder group

Torque 220 kgf·m (2,157.5 N·m; 1,591.3 lbf·ft).