Zündapp 9-092

{{Infobox Aircraft Begin

|name= 9-092

|image=Zündapp Z 9-092 iim Technikmuseum Hugo Junkers Dessau 2010-08-06 Detail 01.jpg

|caption=Rear view of the 9-092 engine on display at the Technikmuseum Dessau (note:displayed upside-down)

}}{{Infobox Aircraft Engine

|type=Air-cooled inverted inline-four engine

|manufacturer=Zündapp

|first run=1938

|major applications=Gotha Go 150, Siebel Si 202B

|number built = c.200

|program cost =

|unit cost =

|developed from = Zündapp Z 9-090

|developed into =

|variants with their own articles =

}}

The Zündapp 9–092 or Z 92 was a German four-cylinder, air-cooled, inline aero engine made by Zündapp and used in light aircraft of the late-1930s.[http://www.flightglobal.com/pdfarchive/view/1938/1938%20-%201629.html Flight - 'The Belgrade Show' - 9 June 1938, p. 561.] Retrieved: 18 December 2012

Design and development

The engine was developed from the smaller Zündapp 9-090. This inverted engine featured dual gear-driven camshafts with the valve rocker cover acting as the oil tank. It featured a single Bosch magneto ignition system. A total of approximately 200 engines were produced.

Applications

Engines on display

Preserved examples of the 9-092 engine are on public display at the Deutsches Museum, Munich and Technikmuseum Dessau.

Specifications

{{pistonspecs

|ref=Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944{{cite book |last=Schneider |first=Helmut (Dipl.Ing.) |title=Flugzeug-Typenbuch. Handbuch der deutschen Luftfahrt- und Zubehör-Industrie 1944 |date=1944 |publisher=Herm. Beyer Verlag |location=Leipzig |isbn=381120484X |edition=Facsimile reprint 1986 |language=German |page=419}}

|type=Four-cylinder air-cooled inverted inline piston aircraft engine

|bore={{cvt|85|mm|2}}

|stroke={{cvt|88|mm|2}}

|displacement={{cvt|2|L|cuin|2}}

|length={{cvt|800|mm|1}}

|diameter=

|width={{cvt|350|mm|1}}

|height={{cvt|560|mm|1}}

|weight={{cvt|60|kg|0}} dry, unequipped

::::{{cvt|65|kg|0}} wet, equipped

|valvetrain=1 inlet and 1 exhaust under-head valve per cylinder driven by pushrods and rockers

|supercharger=

|turbocharger=

|fuelsystem= Downdraught carburettor

|fueltype=78 Octane gasoline

|oilsystem=pressure feed at {{cvt|0.2|-|0.35|atm|psi bar}}

|coolingsystem=Air-cooled

|power=

:*{{cvt|50|PS|hp kW|0}} at 2,300 rpm (30 minutes) at sea level

:*{{cvt|45|PS|hp kW|0}} at 2,225 rpm (max. continuous) at sea level

:*{{cvt|40|PS|hp kW|0}} at 2,150 rpm (cruise) at sea level

|specpower={{cvt|25|PS/L|hp/cuin kW/L|2}}

|compression= 6.2:1

|fuelcon=

|specfuelcon={{cvt|0.220|kg/PSh|lb/hph kg/kWh|3}} at max continuous

|oilcon=

|power/weight={{cvt|0.833|PS/kg|hp/lb kW/kg}}

B.M.E.P.: {{cvt|9.8|atm|bar psi}}

}}

Zündapp 9-092

Design and development

Applications

Engines on display

Specifications

See also

References

Further reading