Device and technical description (Discovery 3)

View from the outside

General information

The TdV6 engine is a diesel, six-cylinder, two-row (3 cylinders in each row) engine with a 60 degree cylinder bank angle, a working volume of 2.7 liters and direct injection. The engine has 4 valves per cylinder, which are actuated by 2 overhead camshafts per cylinder bank. The toxicity of the exhaust gases of the engine meets the requirements of the European environmental standards ECD3; to limit emissions of harmful substances, the engine uses two catalytic converters, an electronic engine management system, forced crankcase ventilation and exhaust gas recirculation. The engine has liquid cooling and turbocharging. The fuel system uses an accumulator system with direct injection.

The cylinder block is made of compacted grey cast iron (CGI), and a lightweight, compact and very strong stepped cast aluminum alloy plate is attached to its lower part for increased rigidity. The cylinder heads are cast from aluminum alloy and are equipped with a plastic camshaft cover. The non-separable oil pan is made of stamped steel. Each bank of cylinders has its own cast iron exhaust manifold. To reduce the engine noise level, a cast plastic noise-insulating cover is installed on top of it.

Technical specifications

The engine has the following features:

• Six-cylinder V-engine with a 60-degree cylinder bank angle and a compacted grey cast iron cylinder block.
• Plastic valve cover
• Two cylinder heads made of lightweight, high-strength aluminum alloy
• 4-valve design with central injectors
• Steel roller levers with hydraulic clearance compensators
• Dual manifold intake system integrated with camshaft cover
• Variable Geometry Turbocharger
• Accumulator system with direct injection
• High pressure fuel pump
• Pistons with cooling channels in the heads and a centrally located combustion chamber
• Two electronically controlled exhaust gas recirculation (EGR) valves
• Two exhaust gas recirculation (EGR)coolers
• The toxicity of exhaust gases is reduced by a special diesel oxidizing catalytic converter and a primary catalytic converter.
• Cooling system fan with electroviscous clutch drive

(The source of the article is located on the website www.lrman.ru)

Engine information

DESCRIPTION	TYPE
Configuration	60 degrees, V6
Maximum power	147 kW at 4000 rpm
Maximum torque	440 Nm at 1900 rpm
Working volume	2720cc
Piston stroke/cylinder diameter	81mm/88mm
Compression ratio	17,3:1
Cylinder firing order	142536
Oil filling volume	6.55 l (first fill ka) 5.45 l (oil change including oil filter)
Engine weight (with oil)	235 kg (with automatic transmission) 260 kg (with manual transmission, including clutch housing and disc)