Daimler-Benz DB 600

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Daimler-Benz DB 600
Daimler-Benz DB 600
A DB 600 in the Mercedes-Benz Museum
Type: Twelve-cylinder - V engine
Design country:

German Reich NSGerman Reich (Nazi era) German Empire

Manufacturer:

Daimler Benz

First flight:

1935

Production time:

1936-1938

Number of pieces:

2281

The Daimler-Benz DB 600 was a liquid-cooled, twelve-cylinder engine - aircraft engine with a displacement of 33.9 liters and a take-off power of up to 1050 hp. Series production at Daimler-Benz began in 1936. The DB 600, which was still provided with carburettors for mixture formation , was installed in many Luftwaffe aircraft in the 1930s , such as the first He 111 series .

As early as 1934, the further development of the same-displacement DB 601 with gasoline direct injection began , which completed its first test runs in 1935 and went into series production in November 1937. After the DB 600 built in 2281, production ended in 1938.

Prehistory and Development

The two Daimler-Benz predecessor companies DMG and Benz manufactured the six-cylinder Mercedes D III and Benz Bz III aircraft engines in large numbers during the First World War . During the Weimar Republic , aircraft engine production in the company that merged to form Daimler-Benz AG in 1926 was completely discontinued. Only after the seizure of power of the Nazis in 1933 could Stuttgart company through the upgrade of the Armed Forces expect new demand again.

As early as the early 1930s, the German engine manufacturers were asked by the Reich Ministry of Transport to develop an 800 HP aircraft engine, which was to be designed as a V-engine with "hanging" cylinders ( crankshaft above) and which was suitable for military and civil purposes. Based on this requirement, Daimler-Benz designed the Daimler-Benz F4A with a displacement of 30 liters. Two prototypes of the twelve-cylinder V-engine with 60 ° bank angle and two mechanical radial loaders were completed in 1932.

The F4A was further developed into the DB 600, the first test runs of which took place in late summer 1935. The Daimler-Benz plant in Berlin-Marienfelde began series production of the DB 600 in 1936.

description

The V-engine was installed rotated by 180 degrees so that the crankshaft was on top (hence also called " A-engine "). This type of engine installation also made it easier to access cylinder heads ( valve control ) and spark plugs for maintenance.

This left enough space above the engine for the installation of ( synchronized ) on-board weapons firing through the propeller circle , while the hollow propeller shaft located between the cylinder banks could accommodate the barrel of a machine gun or cannon . Since this weapon, which was mounted behind the engine block, quickly overheated, loading jams or compression ignition caused by overheating were frequent and installation in the Bf 109 , for example , was quickly abandoned.

The engine block was made of cast aluminum and contained steel cylinder liners . It had an overhead camshaft ( OHC valve control ) driven by a vertical shaft for each cylinder bank , which actuated four valves per cylinder via roller rocker arms ( four-valve technology ). Each cam operated an exhaust valve and an intake valve in turn. The exhaust valves were sodium cooled . The engine had a contact-controlled dual ignition ( Bosch - twin magneto ignition ) with two spark plugs per cylinder. The firing order was 1–8–5–10–3–7–6–11–2–9–4–12–1.

variants

  • DB 600A 1
Up to 1000 PS (810 kW) at 2350 min −1 at sea level
  • DB 600B 2
Up to 1000 PS (810 kW) at 2350 min −1 at sea level
  • DB600C 1
Up to 850 hp (634 kW) at 2350 min -1 to 4000 m. 910 hp takeoff power.
  • DB600D 2
Up to 850 hp (634 kW) at 2350 min -1 to 4000 m. 910 hp takeoff power.
  • DB600G 1
Up to 950 hp (708 kW) at 2350 min -1 to 4000 m. 1050 hp takeoff power.

DB600Ga was a version with a height loader for 4000 m full pressure height .

  • DB600H 2
Up to 950 hp (708 kW) at 2350 min -1 to 4000 m. 1050 hp takeoff power.

DB600Ha was a version with a height loader for 4000 m full pressure height.

Ratio propeller gear :

  • 1 1.55: 1
  • 2 1.88: 1

Technical specifications

(DB 600C)

Similar engines

German Reich NSGerman Reich (Nazi era) German Empire

United StatesUnited States United States
FranceFrance France
United KingdomUnited Kingdom United Kingdom
Soviet UnionSoviet Union Soviet Union

Applications

DB 600 A in a Heinkel He 111

swell

  • Helmut Schubert: German engines - aircraft engines and jet engines from the beginning to 1999. Aviatic Verlag GmbH, Oberhaching 1984, ISBN 3-925505-49-0 .
  • Heinz J. Nowarra: The German Air Armament 1933-1945. Bernard & Graefe Verlag, ISBN 3-8289-5315-8 .

English:

  • Roy Cross, Gerald Scarborough: Messerschmitt Bf 109: Versions B – E - Classic Aircraft No.2. Patrick Stephens Ltd, Cambridge 1972, ISBN 0-85059-106-6 .
  • William Green: The Augsburg Eagle: A Documentary History - Messerschmitt Bf 109. Macdonald and Jane's Publishing Group Ltd, London 1980, ISBN 0-7106-0005-4 .
  • JR Smith, Anthony L. Kay: German Aircraft of the Second World War. Putman & Company Ltd., London 1972, ISBN 0-370-00024-2 .

See also

Web links

Commons : Daimler-Benz DB 600  - Collection of Pictures, Videos and Audio Files

Individual evidence

  1. ↑ German Aircraft Industry and Production, 1933-1945, ISBN 1-85310-864-2 , p. 310; google.books: limited preview
  2. ↑ MTU Museum of Engine History - yesterday, today and tomorrow at www.mtu.de (PDF, 4.4 MB)