Sulzer ZG9

Sulzer ZG9 was a pre-World War II opposed-piston two-stroke diesel engine by Sulzer.^[1][2] The engine was available with a choice of two, three and four cylinders (2ZG9, 3ZG9, 4ZG9); the two-cylinder version developed 120 bhp. It used a piston scavenge pump. This was mounted vertically above one rocker, driven by a bellcrank from the main rockers. This engine is sometimes cited as an inspiration for the Commer TS3 design.^[3]

Specification

Data from ^[1]

General characteristics

• Type: Two cylinders, four opposed pistons.
• Bore: 90 mm
• Stroke: 120 mm

Performance

• Power output: 50 PSe / 36,77 kW ^[4] at 1,500 rpm

See also

• Arrol-Johnston - 1905 opposed piston petrol engine
• Commer TS3
• Junkers Jumo 204 - an opposed-piston aircraft engine of the 1930s
• Napier Deltic - large multi-bank engine, with crankshafts shared between cylinder banks.