Renault 8Gd

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The Renault 8 Gd was a French liquid-cooled V-8 aero engine of the World War I era that produced 190 horsepower (140 kW).

Design and development

Construction used separate cast iron blocks for each pair of cylinders, mounted on a light-alloy crankcase with an included vee angle of 50 degrees. Each bank had a single overhead camshaft, shaft-driven through bevel gears. It was equipped with a single dual-choke updraught Zenith carburettor, and twin spark ignition through four magnetos. The crankshaft was a flat plane with three bearings and four throws, each pair of cylinders sharing a master-slave connecting rod onto the same crankpin.

Applications

Dorand AR.1 - Renault 8Gd - 1917
Farman F.80 - Renault 8Gd
Dorand AR.2 - Renault 8Gdy

Specifications

Section on cylinder

Data from ^[1]

General characteristics

Type: 8-cylinder naturally aspirated liquid-cooled 50° "Vee" piston aircraft engine
Bore: 125 mm (4.9 in)
Stroke: 150 mm (5.9 in)
Displacement: 14.7 L (900 cu in)

Components

Valvetrain: Overhead camshaft-actuated, single intake and single exhaust valve per cylinder
Fuel system: Twin-choke updraught carburettor
Oil system: Wet sump
Cooling system: Water

Performance

Power output:
192 hp (143 kW) at 1,500 rpm
196 hp (146 kW) at 1,550 rpm son régime normal
200 hp (150 kW) at 1,600 rpm son régime maximum
Specific power: 9.93 kW/L (0.22 hp/in³)

References

Wikimedia Commons has media related to Scans from 'Renault 190HP aircraft engine manual'.

↑ Renault 190 HP Notice descriptive et Règlement. Renault.

v t e Renault aero engines

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