Renault 4P
| Industry | Aero engines |
|---|---|
| Founded | 1899 |
| Headquarters | France |
| Products | Aircraft engines |
The Renault 4P, which is also referred to as the Renault Bengali Junior, represents a family of air-cooled, four-cylinder inverted inline aero engines manufactured in France starting in 1927. These engines produced power outputs ranging from to .
Design and development
Motivated by Charles Lindbergh's historic 1927 transatlantic flight, Renault expanded into the light aircraft engine segment to broaden its range of powerplants. The Renault 4Ps featured a bore and stroke, delivering , and were installed in multiple record-breaking light aircraft.
Under the direction of Charles-Edmond Serre, by 1931 the 6.3-litre 4Pdi model enhanced performance to , incorporating steel cylinder liners with a bore, aluminium alloy cylinder heads fastened by extended studs, Duralumin connecting rods, and a magnesium alloy crankcase.
The Voronezh MV-4 was a licensed production version of the 4Pei built in the USSR, adapted with domestic components and design elements derived from the MV-6 engine.
Following World War II, manufacturing of the Renault 4P-01 recommenced at the SNECMA facility located in Arnage, Sarthe, continuing until 1949 with a minimum of 762 units completed.
Variants
- Renault 4Ps
- The original variant featuring a bore and stroke, rated at
- Renault 4Pb
- Rated at / , utilized on the Caudron Luciole
- Renault 4Pbi
- Inverted adaptation of the Pb model maintaining the same bore
- Renault 4Pc / 4Pci
- Enhanced versions of the Ps; the 4Pci is an inverted configuration
- Renault 4Pdi
- Inverted engine with steel cylinder liners measuring , aluminium heads, Duralumin connecting rods, magnesium crankcase; power output between ; installed on Hanriot 16 and Caudron Phalène
- Renault 4Pei
- Inverted design rated at , produced prior to WWII
- Renault 4Pgi
- Lower-powered inverted model delivering , compatible with 73-octane gasoline
- Renault 4Poi
- Equipped with fuel injection, rated at
- Renault 4P-01
- Postwar iteration of the 4Pei with power rating of
- Renault 4P-03 / 4P-05 / 4P-07
- Derivatives of the 4P-01 featuring updates to carburettor and lubrication systems
- MV-4
- Soviet license-produced version of the Renault 4Pei manufactured at Voronezh; over 180 units built before production ceased in 1939 due to carburettor shortages
References
- Gérard Hartmann, Les Moteurs d'avion Renault
- Wilkinson, Paul H.. Aircraft Engines of the World 1945 3rd edition. Paul H. Wilkinson. 1945. New York.
- Wilkinson, Paul H.. Aircraft Engines of the World 1946 revised edition. Sir Isaac Pitman & Sons Ltd.. 1946. London.