Siemens & Halske Sh 6
The Siemens & Halske Sh 6 was an aircraft engine developed by Siemens & Halske in Berlin-Siemensstadt during the Weimar Republic .
development
After the end of the First World War , Siemens & Halske gave up the production of rotary engines due to the restrictions imposed by the victorious powers and switched to the construction of reduced-power, fixed radial engines . The first such model appeared in 1921 with the five-cylinder Sh 4 . From this, the Sh 5 with seven and the Sh 6 with nine cylinders were derived in 1923 , both of which were equipped with two carburettors to improve the mixture distribution and running safety in contrast to the Sh 4 . But while a little over 100 units of the Sh 5 were produced, production of the Sh 6 was stopped after around ten copies. The range of applications was correspondingly small: three of them served as drives for the Udet U 8 , one engine was used in a Heinkel HE 3 .
construction
In the Sh 4, Sh 5 and Sh 6 series, largely uniform elements were used. This affected the cylinders, pistons , valves , connecting rods , crankshafts , oil pumps , tappets , bumpers and rocker arms . The cylinder consisted of steel with ribs made of aluminum and were provided with an exhaust valve and an intake valve forwardly on the rear side. For ignition Siemens magnets were Type F9 . The valves were controlled by a barrel cam located in the front housing . The tappets, bumpers, rocker arms and the crankshaft ran in ball bearings , as did the main connecting rod, while the secondary rods were sliding bearings .
Technical specifications
| Parameter | Data |
|---|---|
| Manufacturer | Siemens & Halske |
| Developing country |
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|
| Year of development | 1923 |
| number of pieces | approx. 10 |
| Design | air-cooled nine-cylinder - four stroke - radial engine |
| drilling | 100 mm |
| Hub | 120 mm |
| Displacement | 8.5 l |
| Compression ratio | 1: 4.7 |
| length | 814 mm |
| width | 1000 mm |
| height | 1000 mm |
| Dimensions | 145 kg |
| Unit mass | 1.46 kg / hp |
| Continuous output | 99 hp (73 kW) at 1500 rpm |
| Starting power | 110 hp (81 kW) at 1600 rpm |
| Displacement | 12.9 hp / l (9.5 kW / l) |
| Fuel consumption | 250 g / PSh (maximum 280 g / PSh) |
| Lubricant consumption | 12–15 g / PSh (maximum 25 g / PSh) |
literature
- Kyrill von Gersdorff, Kurt Grasmann: aircraft engines and jet engines . In: German aviation . Bernard & Graefe, Munich 1981, ISBN 3-7637-5272-2 , pp. 44 .
- K. Grasmann (Hrsg.): Airplane type tables. DMZ 1925-1927 . 1977 (facsimile reprint Deutsche Motor-Zeitschrift No. 1 and 2/1925 and 9/1925).
Individual evidence
- ↑ Bruno Lange: Type Handbook of German Aviation Technology (= Die deutsche Luftfahrt . Volume 9 ). Bernard & Graefe, Koblenz 1986, ISBN 3-7637-5284-6 , pp. 327 .