Mercedes D.IVa

Mercedes D.IVa
D.IVa
Mercedes D.IVa at the Deutsches Museum. The prominent black piping is the inlet manifold from the carburetor
Type Inline piston engine
Manufacturer Daimler Motoren Gesellschaft (DMG)
First run 1917

The Mercedes D.IVa was a six-cylinder, water-cooled, inline engine developed in Germany for use in aircraft and built by Daimler Motoren Gesellschaft (DMG).[1]

Contents

Design and development

The D.IVa replaced the failed Mercedes D.IV inline eight-cylinder engine. The D.IVa was primarily used to power bombers and large reconnaissance aircraft. Unlike most German designs, the D.IVa was relatively advanced, including four valves per cylinder powered by an overhead cam, also used on the earlier two-valve per cylinder D.I through D.IIIa powerplants. Designed specifically to be installed in the fuselage, the engine featured a number of design elements intended to reduce its width. For instance, the carburetor was placed behind the engine, feeding fuel to the cylinders via a long pipe. This had the disadvantage of poor fuel distribution. Two versions of the engine were produced in mirror copies, running in opposite directions.

Applications

Specifications (D.IVa)

Data from Jane's.[2][3]

General characteristics

  • Type: 6-cylinder, inline piston engine
  • Bore: 160 mm (6.3 in)
  • Stroke: 180 mm (7.09 in)
  • Displacement: 21.72 L (1,324.92 cu in)
  • Dry weight: 1,099 lb

Components

  • Fuel system: Twin jet Mercedes carburettor with automatic mixture control
  • Oil system: Forced feed to bearings and camshaft
  • Reduction gear: Direct drive, left-hand tractor

Performance

  • Power output: 252 hp at 1,400 rpm
  • Compression ratio: 4.94:1
  • Fuel consumption: 125 pints per hour
  • Oil consumption: 8.125 pints per hour

See also

Related lists

References

Notes

  1. ^ Gunston 1989, p.101.
  2. ^ Jane's 1993, p. 299
  3. ^ Figures were derived from a British bench test of a captured engine.

Bibliography

  • Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9
  • Jane's Fighting Aircraft of World War I. London. Studio Editions Ltd, 1993. ISBN 1-85170-347-0

External links


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Mercedes D III — Ein Mercedes D IIIa in einer Fokker D.VII Der Mercedes D III war ein Flugmotor der Daimler Motoren Gesellschaft. Der Sechszylinder Reihenmotor mit einer Dauerleistung von 120 kW (160 PS) und Flüssigkeitskühlung kam ab 1915 in verschiedenen… …   Deutsch Wikipedia

  • Mercedes D.IV — D.IV Type Inline piston engine Manufacturer Daimler Motoren Gesellschaft (DMG) Developed from Mercedes D.III Variants Mercedes D.IVa The Mercedes D.IV was an eight cylinder, liquid cooled inline aircraft engine built by Daimler Motoren Gesellscha …   Wikipedia

  • Mercedes D.III — D.III Mercedes D.IIIa mounted in a Fokker D.VII Type Inline piston engine Manufacturer …   Wikipedia

  • Mercedes-Benz-Bus — Omnibusse unter dem Markennamen Mercedes Benz werden seit 1926 von Daimler Benz und seit 1995 von der Daimler Tochter EvoBus hergestellt. Die Daimler AG ist einer der größten Hersteller von Bussen. Prinzipiell können seit den 1960er Jahren… …   Deutsch Wikipedia

  • Mercedes D.II — D.II Daimler D II engine Type Inline piston engine Manufacturer …   Wikipedia

  • Mercedes D.I — D.I Type Inline piston engine Manufacturer Mercedes First run 1913 The Mercedes D.I was a six cylinder, water cooled, inline engine developed in Germany for use in aircraft in 1913. Developing 75 kW (100 hp), it powered many German military… …   Wikipedia

  • Friedrichshafen G.IVa — Die Friedrichshafen G.I V der Flugzeugbau Friedrichshafen AG waren Bomber der deutschen Fliegertruppe im Ersten Weltkrieg. Inhaltsverzeichnis 1 Entwicklung 2 Einsatz 3 Weiterentwicklung 4 Technische Daten …   Deutsch Wikipedia

  • Maybach Mb.IVa — Mb.IVa Type 6 cyl water cooled in line piston engine National origin Germany Manufac …   Wikipedia

  • R-planes — were large German Army bombers in World War I. The R classification was short for Riesenflugzeug ( giant aircraft ). In designations, the manufacturer s name preceded the letter R followed by a Roman numeral, e.g. Dornier Rs.III or Staaken R.XIV …   Wikipedia

  • AEG. G.III — AEG G Typen Typ …   Deutsch Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”