Renault 8B

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The Renault 8 Bd was a liquid-cooled V-8 aero engine, of 190 hp.

Construction used separate cast iron blocks for each pair of cylinders, mounted on a light alloy crankcase. Vee angle was 50°. Each bank had a single overhead camshaft, shaft-driven through bevel gears. Single dual-choke updraught Zenith carburettor. Twin spark ignition, through 4 magnetos. Crankshaft was a flat plane with three bearings and four throws, each pair of cylinders sharing a master-slave rod onto the same crankpin.

[edit] Aircraft uses

Dorand AR.1, 1917

[edit] Specifications

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General characteristics

• Type: 8-cylinder naturally-aspirated liquid-cooled 50° "Vee" piston aircraft engine
• Bore: 125 mm
• Stroke: 150 mm
• Displacement: 14.7 L

Components

• Valvetrain: Overhead camshaft-actuated, single intake and single exhaust valve per cylinder
• Fuel system: Twin-choke updraft carburettor
• Oil system: wet sump
• Cooling system: water

Performance

• Power output:
  
  • 192 hp at 1,500 rpm
  • 196 hp at 1,550 rpm son régime normal
  • 200 hp at 1,600 rpm son régime maximum
• Specific power: 9.93 kW/L

[edit] References