Renault 6P

6P
Type	Air-cooled 6-cyl inverted in-line piston engine
National origin	France
Manufacturer	Renault

The Renault 6P, also called the Renault Bengali, was a series of air-cooled 6-cylinder inverted in-line aero engines designed and built in France from the late 1920s, which produced from 130 kW (180 hp) to 200 kW (270 hp).

Design and development

Charles Lindbergh's Atlantic Ocean crossing in 1927 inspired Renault to enter the light aero-engine market to diversify the range of engines they offered. To complement the 4P four-cylinder engines, Renault developed the 6P series, with 115 mm (4.5 in) bore and 140 mm (5.5 in) stroke; by adding two cylinders of the same bore and stroke.

Developed by Charles-Edmond Serre, the 9.5 l (579.73 cu in) 6P evolved to give 180 to 270 hp (130 to 200 kW), using 120 mm (4.7 in) bore steel cylinder liners, aluminium alloy cylinder heads attached by long studs to the crankcase, Duralumin connecting rods and magnesium alloy crankcase.

The 6P was also produced in the USSR, as the MV-6, (Motor Vozdushniy / Motor Voronezhskiy - air-cooled engine / Voronezh built engine {correct interpretation is unclear}).

Variants

Renault 6Pdi: inverted 6 in-line
Renault 6Pdis: with supercharger
Renault 6Pfi: 130 kW (170 hp)
Voronezh MV-6: licence production in the USSR

Applications

Specifications (Renault 6Pdi)

Data from Renault 1907-1934:27 Ans d'Aviation^[1]

General characteristics

Type: 6-cylinder naturally aspirated air-cooled inverted in-line piston aircraft engine
Bore: 120 mm (4.7 in)
Stroke: 140 mm (5.5 in)
Displacement: 9.5 L (579.73 in³)
Dry weight: 205 kg (452 lb)

Components

Valvetrain: Pushrod-actuated, single intake and single exhaust valve per cylinder
Fuel type: 80 Octane gasoline
Oil system: Pressure fed, 3.0 kg/cm² (43 lbf/in²), dry sump
Cooling system: Air

Performance

Power output: 180 hp (130 kW) at 2,000 rpm @ sea-level normal
Compression ratio: 5.75:1
Specific fuel consumption: 0.335 kg/kW.hr (0.551 lb/hp.hr)
Power-to-weight ratio: 0.654 kW/kg (0.398 hp/lb)

References

↑ Renault 1907-1934:27 Ans d'Aviation (PDF) (in French). Billancourt: Usines Renault. 1934. pp. 31–41. Retrieved 12 October 2014.

Renault aero engines

35-40 hp V-4 45 hp V-8 60 hp V-8 70 hp Type WB 70 hp Type WC 80 hp Type WS 100 hp V-8 130 hp V-8 100 hp V-12 120 hp V-12 160 hp 190 hp V-12 200 hp V-12 265 hp V-12 438 446 454 456 468 626 4B 4P 6P 6Q 7A 8A 8B 8C 8G 9A 9C 9P 12D 12E 12F 12H 12J 12K 12M 12N 12R 12S 12T 18J Renault Bengali 4 Renault Bengali 6

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