Junkers L 5
The Junkers L 5 was a liquid-cooled six-cylinder aircraft engine with 22.9 liters of displacement, the engine, the Junkers GmbH made as license of the BMW IV from 1925. He was the successor to the smaller displacement Junkers L 2 from 1924, which was based in turn on the BMW III.
History
Professor Hugo Junkers beginning of the 1920s, decided to take its own engine production due to the increasing demand for aircraft engines. Experience in large engines were available; the Junkers engine GmbH ( Jumo ) was founded in 1923. Until then, all aircraft Junkers Flugzeugwerke AG with engines from BMW, DMG, Siemens & Halske and Armstrong Siddeley had been finished.
Construction
It is a water-cooled six-cylinder in-line engine. The crankcase of an aluminum alloy is divided horizontally. The crankshaft is made of cast iron, as the crankshaft bearings are seven plain bearings are used. The cast iron cylinders are arranged individually on the crankcase and have welded coats made of sheet steel for water cooling. The pistons have three piston rings. The overhead camshaft ( OHC valve timing ) is driven by a vertical shaft. The hanging valves are actuated by roller rocker arms.
For the mixture formation, a single carburettor means. The Doppelzündanlage ( two spark plugs per cylinder ) consists of two Bosch magnetos. The firing order is: 1-5-3-6-2-4. The Pressure lubrication is maintained with a piston oil pump. A cooling water pump to circulate the coolant.
Use
Junkers of L 5 was used in a number of planes as a drive. In particular, it was also used for prototypes and record flights are used.
Use in Junkers aircraft
- Junkers F 13
- Junkers A 20
- Junkers A 35
- Junkers G 23
- Junkers G 24
- Junkers K 30
- Junkers G 31
- Junkers W 33
Useful in other types of aircraft
- Albatros L 73
- Albatros L 75
- Focke-Wulf A 32
- Heinkel He 42
- Heinkel HD 24
- Heinkel He 50
- Messerschmitt M24
- Rohrbach Ro VIII
Specifications
Versions
- L 5
- L 5G - evolved L 5 with hydraulic vibration dampers
- L5 Ga
- L5 Z