The Renard Type 100 was a five-cylinder, radial piston engine, designed and produced in the late 1920s and early 1930s by Société Anonyme des Avions et Moteurs Renard (Renard) in Belgium.

Design and development

The Type 100 was a conventional air-cooled radial engine with overhead valves, operated by push-rods and rockers. Accessories were mounted on the rear crankcase plate and the propeller was driven directly, with no reduction gearing.[1]

Specifications (Type 100)

Data from Jane's all the World's Aircraft 1928[1]

General characteristics

• Type: 5-cylinder aircooled radial piston engine
• Bore: 120 mm (4.7 in)
• Stroke: 140 mm (5.5 in)
• Displacement: 7.92 l (1.74 imp gal; 2.09 US gal)
• Diameter: 1,080 mm (43 in)
• dual ignition system

Components

• Valvetrain: 2 cam rings, pushrods and rockers operating one inlet and one exhaust valve per cylinder
• Fuel system: one carburetor supplying mixture to a crankcase plenum, then by radial pipes to inlet valves
• Oil system: dry sump pressure
• Cooling system: air-cooled
• Reduction gear: direct drive

Performance

• Power output: normal:75 kW (100 hp) at 1,400 rpm ; Maximum:89 kW (120 hp) at 1,580 rpm
• Compression ratio: 5.2:1
• Specific fuel consumption: 0.301 kg/(kW hour) (0.495 lb/(hp hour))

References