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The Daimler-Benz DB 600 series were a number of German aircraft engines designed and built before and during World War II as part of a new generation of German engine technology. The general layout was that of a liquid-cooled, inverted V12 engine. The design originated to a private venture project of Daimler-Benz, the F4 engine. Most newer DB engine designs used in WW2 were based around this engine.

DB 600 series
DB 600A in a Heinkel He 111B nacelle

The decision by the RLM to concentrate on manufacturing aircraft engines using fuel injection systems rather than carburetors meant that the DB 600 was quickly superseded by the otherwise similar DB 601 that included direct fuel injection. Later DB series engines grew in bore, stroke, and horsepower, including the DB 603 and DB 605, but were generally similar to the pattern created with the DB 600.


Development



Origins: the F4


Based on the guidelines laid down by the Reichswehrministerium (Imperial Ministry of Defence), in 1929 Daimler-Benz begun development of a new aero engine of the 30-litre class: a liquid-cooled inverted-Vee 12-cylinder piston engine. This became the F4, and by 1931 two prototypes were running on the test bench. These were followed by the improved F4 B, which became the prototype for the DB 600.[1]


Daimler-Benz DB 600


In 1933, Daimler-Benz finally received a contract to develop its new engine and to build six examples of the DB 600. For the year after, the DB 600 was the only German aero engine in the 30-litre class. In total, 2,281 DB 600s were built.[1] Unlike the later engines of the DB 600 series, fuel mixture was controlled by carburetor.[1]

Variants:

DB 600 A¹ and B²

Developed in 1934, the A and B variants were identical except for their reduction gear ratios: the former was intended for the Bf 109 single-engine interceptor, the latter variant for the Bf 110 heavy fighter.[1]

Power at sea level:

DB 600C¹ and D²

As the A/B, but with supercharger and 13,120 feet (4000 m) rated altitude.[1]

Power at Sea level:

Power at 13,120 feet (4000 m) rated altitude:

DB600G¹ and H²

Developed in 1936, the DB 600G and H offered increased power output, otherwise were similar to the C/D variants.[1]

Power at Sea level:

Power at 13,120 feet (4000 m) rated altitude:


¹ Reduction Gearing = 1.55

² Reduction Gearing = 1.88


Daimler-Benz DB 601


The DB 601 was a development of the DB 600G with direct fuel injection, which produced better fuel economy, and eliminated engine cut-out due to carburettor induced fuel starvation during negative G-loads.[2] The supercharger in the new engine was driven through a stage-less, automatically controlled hydraulic clutch. The supercharger speed was adjusted via the slip in the clutch, controlled by a barometric device. This solution minimized the power loss typical of multi-speed superchargers with fixed supercharger gear ratios.

The assembly of the first prototypes began in September 1934, designated as DB 601 V. The first powered flight of a DB 601/0 was in a Ju 52 testbed on 11 June 1936. The first prototype with the direct fuel injection, designated as F4E, was test run in 1935, and an order for 150 engines was placed in February 1937.[2] Serial production begun in November 1937, and ended in 1943, after 19,000 examples of all types were produced.[2]

As in previous DB 600s, all DB 601-series had 33.9 litre displacement.[2] It was installed in the Heinkel He 112 (in 1937), the Heinkel He 111 (1938), the Fieseler Fi 167 (1938), the Messerschmitt Bf 109E (1938) and various experimental types.


Daimler-Benz DB 602


A 16-cylinder airship diesel engine, only related to the DB 600 by the manufacturer.


Daimler-Benz DB 603



Daimler-Benz DB 604


An X-24 design based on the DB 600.


Daimler-Benz DB 605



See also


Related development

Comparable engines

Related lists


References


  1. Mankau&Petrick, 2001. p. 348.
  2. Mankau&Petrick, 2001. pp. 347-355

Bibliography





На других языках


- [en] Daimler-Benz DB 600 series

[es] Serie DB 600 de Daimler-Benz

La serie DB 600 de motores aeronáuticos de Daimler-Benz fue una exitosa serie empleada por Alemania durante más de una década, desde principios de los años 1930 hasta el fin de la Segunda Guerra Mundial.

[fr] Daimler-Benz DB 600

La famille de moteurs Daimler-Benz DB 600, à 12 cylindres en V inversé, constitua la principale motorisation des avions de chasse allemands de la Seconde Guerre mondiale. La série commença avec le DB 600A en 1934, qui évolua par l'introduction de l'injection directe en DB 601 produit à 19 322 exemplaires, puis par une augmentation du régime et une hausse légère de la cylindrée en DB 605 (42 400 exemplaires produits). Par ailleurs, une version de très grosse cylindrée, le DB 603 de 44,5 litres, fut produite à 8 758 exemplaires en 36 versions.



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