Kharkiv model V-2

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V-2
The V-92 is the latest derivative of the V-2 family of engines, used on several Russian tanks and other military vehicles.
Overview
Manufacturer	Kharkov Locomotive Factory
Designer	Konstantin Chelpan
Production	V-2: 1939 - late 1940s V-11: 1939 - late 1940s V-12: 1945 - late 1940s V-54: 1947 - late 1960s V-55: 1958 - early 1980s V-46: 1973 - present V-84: 1978 - present V-92: 1992 - present
Layout
Configuration	V-12
Displacement	38.8 L (2,370 cu in)
Cylinder bore	150 mm (5.9 in)
Piston stroke	180 mm (7.1 in) left group 186 mm (7.3 in) right group
Compression ratio	15:1 right cyl.bank 15.8:1 left cyl. bank (from flywheel end)
Combustion
Fuel type	Diesel
Output
Power output	460–700 hp (340–520 kW)
Torque output	220 kgf⋅m (2,157 N⋅m; 1,591 lbf⋅ft)
Dimensions
Dry weight	2,210 lb (1,000 kg)

The Kharkiv model V-2 (Russian: В-2) is a Soviet and Russian family of diesel tank V-12 engines, the V angle at 60°, with dual overhead camshafts per bank, four valves per cylinder opened by bucket-style followers and direct fuel injection. Designed at the Kharkiv Locomotive Factory by Konstantin Chelpan and his team, it is found in the BT-7M (BT-8), T-34, KV, IS and IS-10 (T-10) tanks, and by extension, the vehicles based on them, such as the SU-85 and SU-100 tank destroyers based on the T-34 and the ISU-122 and ISU-152 self-propelled guns based on the IS-2. Throughout its production life, output ranged from roughly 450–700 hp (340–520 kW).

Successive variants of the V-2 have been used in multiple Soviet and Russian vehicles ever since. Heavily modernised derivatives of the V-2 remain in production, with the T-90A tank, Koalitsiya-SV self-propelled gun and BMPT Terminator armoured support vehicle equipped with a 1,000 hp V92S2, while the latest T-72B3 and T-90M tanks feature an upgraded 1,130 hp V-92S2F. Licensed production additionally continues in several countries.