Daimler-Benz DB 604: Difference between revisions
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{{short description|1930s German piston aircraft engine}} |
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{|{{Infobox Aircraft Begin |
{|{{Infobox Aircraft Begin |
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|name= DB 604 |
|name= DB 604 |
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|image= File:Daimler-Benz DB 604 Hermeskeil 01.jpg |
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|image= |
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|caption= |
|caption= |
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|national origin = [[Nazi Germany|Germany]] |
|national origin = [[Nazi Germany|Germany]] |
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|manufacturer= [[Daimler-Benz]] |
|manufacturer= [[Daimler-Benz]] |
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|first run= |
|first run=1939 |
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|major applications= |
|major applications= |
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|number built = |
|number built = |
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The '''Daimler-Benz DB 604''' was an experimental [[Nazi Germany|German]] 24-cylinder aircraft engine, which did not progress beyond the initial engine testing phase and was ultimately abandoned in |
The '''Daimler-Benz DB 604''' was an experimental [[Nazi Germany|German]] 24-cylinder aircraft engine, which did not progress beyond the initial engine testing phase and was ultimately abandoned in 1942. |
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==Design and development== |
==Design and development== |
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The DB 604 was unique among the [[Daimler-Benz DB 600 series|DB 600 series]] of aircraft engines |
The DB 604 was unique among the [[Daimler-Benz DB 600 series|DB 600 series]] of aircraft engines for having its 24 cylinders arranged in an [[X engine|X]], with four inline rows of six [[Cylinder (engine)|cylinders]]. The DB 604 was also unique amongst the [[X24 engine|X-24]] engines, in that it was not conceived as a further development of existing Daimler-Benz aircraft engines such as the [[Daimler-Benz DB 601|DB 601]], [[Daimler-Benz DB 603|DB 603]] or [[Daimler-Benz DB 605|DB 605]], which themselves had been twinned up as two separate powerplants sharing a new common gear reduction case at their front ends, into the 1.5-tonne dry weight DB 601-based "coupled" [[Daimler-Benz DB 606|DB 606]] in February 1937,<ref name=weldedtogether-606>{{cite book |last1=Griehl |first1=Manfred |last2=Dressel |first2=Joachim |title=Heinkel He 177 – 277 – 274 |year=1998 |publisher=Airlife Publishing |location=Shrewsbury, UK |isbn=1-85310-364-0 |page=224 }}</ref> the same-weight figured DB 605-based [[Daimler-Benz DB 610|DB 610]] by June 1940,<ref name=weldedtogether-606></ref> and just slightly earlier, in March 1940, the 1.8 tonne approximate weight replacement for the DB 606 and 610, the DB 603-based [[Daimler-Benz DB 613|DB 613]] "power system" of nearly 3,500 PS output.<ref name=weldedtogether-606></ref> For example, the [[Rolls-Royce Vulture]] was basically two [[Rolls-Royce Peregrine]] engines joined at the crankcase, thus producing the X-configuration of the cylinders. |
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The DB 604 was a completely new Daimler-Benz engine design featuring a perfectly square [[stroke ratio]] of 135 mm x 135 mm. The short [[Stroke (engine)|stroke]] [[ratio]] enabled the relatively high engine speed of 3,200 [[Revolutions per minute|rpm]]. The first engine tested in 1939 on the [[engine test stand]] achieved a power output of 1,725 [[Watt#Kilowatt|kW]] (2,350 [[Horsepower|hp]]).<ref>von Gersdorff, K., et al. p. 120</ref> |
The DB 604 was a completely new Daimler-Benz engine design featuring a perfectly square [[stroke ratio]] of 135 mm x 135 mm. The short [[Stroke (engine)|stroke]] [[ratio]] enabled the relatively high engine speed of 3,200 [[Revolutions per minute|rpm]]. The first engine tested in 1939 on the [[engine test stand]] achieved a power output of 1,725 [[Watt#Kilowatt|kW]] (2,350 [[Horsepower|hp]]).<ref>von Gersdorff, K., et al. p. 120</ref> |
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Further development of the first test engines led to the DB 604A/B. The only difference between the DB 604A and the DB 604B - as with the similarly suffixed A and B versions of the DB 606 and 610 "coupled" power system engines - was the direction in which the DB 604's [[crankshaft]] turned. The DB 604A/B was equipped with a two-speed [[supercharger]], achieving 1,835 kW (2,500 hp) whilst testing. |
Further development of the first test engines led to the DB 604A/B. The only difference between the DB 604A and the DB 604B - as with the similarly suffixed A and B versions of the DB 606 and 610 "coupled" power system engines - was the direction in which the DB 604's [[crankshaft]] turned. The DB 604A/B was equipped with a two-speed [[supercharger]], achieving 1,835 kW (2,500 hp) whilst testing. |
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Development of |
Development of the DB 604 was canceled by the [[Ministry of Aviation (Germany)|Reich Air Ministry]] (RLM - {{langx|de|Reichsluftfahrtministerium}}) in September 1942. |
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==Engines on display== |
==Engines on display== |
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== Specifications (DB 604A/B) == |
== Specifications (DB 604A/B) == |
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[[File:Daimler-Benz DB 604 Hermeskeil 02.jpg|thumb]] |
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{{pistonspecs| |
{{pistonspecs| |
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|coolingsystem= |
|coolingsystem= |
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|power=1,835 kW (2,500 hp) at 3,200 rpm at 5,100 m (16,732 ft) |
|power=1,835 kW (2,500 hp) at 3,200 rpm at 5,100 m (16,732 ft) |
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|specpower= |
|specpower=39.6 kW/L (.9 hp/cu in) |
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|compression=7.0:1 |
|compression=7.0:1 |
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|fuelcon= |
|fuelcon= |
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|specfuelcon= |
|specfuelcon= |
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|oilcon= |
|oilcon= |
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|power/weight= |
|power/weight=1.71 kW/kg (1.05 hp/lb) |
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|designer= |
|designer= |
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{{aircontent |
{{aircontent |
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|similar engines= |
|similar engines= |
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*[[Junkers Jumo 222]] |
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*[[Rolls-Royce Vulture]] |
*[[Rolls-Royce Vulture]] |
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*[[Rolls-Royce Exe]] |
*[[Rolls-Royce Exe]] |
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===Bibliography=== |
===Bibliography=== |
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*{{cite book |last1=Bingham |first1=Victor |title=Major Piston Aero Engines of World War II |date=1998 |publisher=Airlife Publishing |location=Shrewsbury, UK |isbn=1-84037-012-2}} |
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{{refbegin}} |
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*{{cite book |last1=Christopher |first1=John |title=The Race for Hitler's X-Planes: Britain's 1945 Mission to Capture Secret Luftwaffe Technology. |date=2013 |publisher=History Press |location=Stroud, UK |isbn=978-0-7524-6457-2}} |
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* Gunston, Bill. ''World Encyclopaedia of Aero Engines''. Cambridge, England. Patrick Stephens Limited, 1989. {{ISBN|1-85260-163-9}} |
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*{{cite book |last1=Gunston |first1=Bill |title=World Encyclopedia of Aero Engines: From the Pioneers to the Present Day |date=2006 |publisher=Sutton |location=Stroud, UK |isbn=0-7509-4479-X |edition=5th}} |
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* von Gersdorff, Kyrill; Schubert, Helmet et al. ''Die deutsche Luftfahrt: Flugmotoren und Strahltriebwerke''. Bernard & Graefe Verlag, Bonn, 2007. {{ISBN|3-7637-6128-4}} |
* von Gersdorff, Kyrill; Schubert, Helmet et al. ''Die deutsche Luftfahrt: Flugmotoren und Strahltriebwerke''. Bernard & Graefe Verlag, Bonn, 2007. {{ISBN|3-7637-6128-4}} |
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* Neil Gregor ''Daimler-Benz in the Third Reich''. Yale University Press, 1998 |
* Neil Gregor ''Daimler-Benz in the Third Reich''. Yale University Press, 1998 |
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{{refend}} |
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==External links== |
==External links== |
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{{Commons category}} |
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*[http://www.airventure.de/hkeilpics/db604.jpg Image of Daimler-Benz DB 604] |
*[http://www.airventure.de/hkeilpics/db604.jpg Image of Daimler-Benz DB 604] |
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{{Daimler-Benz aeroengines}} |
{{Daimler-Benz aeroengines}} |
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[[Category:Daimler-Benz aircraft engines]] |
[[Category:Daimler-Benz aircraft engines]] |
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[[Category: |
[[Category:1930s aircraft piston engines]] |
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[[Category:X engines]] |
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[[Category:Abandoned military aircraft engine projects of Germany]] |
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Latest revision as of 05:07, 31 October 2024
| DB 604 | |
|---|---|
| |
| Type | Piston aircraft engine |
| National origin | Germany |
| Manufacturer | Daimler-Benz |
| First run | 1939 |
The Daimler-Benz DB 604 was an experimental German 24-cylinder aircraft engine, which did not progress beyond the initial engine testing phase and was ultimately abandoned in 1942.
Design and development
[edit]The DB 604 was unique among the DB 600 series of aircraft engines for having its 24 cylinders arranged in an X, with four inline rows of six cylinders. The DB 604 was also unique amongst the X-24 engines, in that it was not conceived as a further development of existing Daimler-Benz aircraft engines such as the DB 601, DB 603 or DB 605, which themselves had been twinned up as two separate powerplants sharing a new common gear reduction case at their front ends, into the 1.5-tonne dry weight DB 601-based "coupled" DB 606 in February 1937,[1] the same-weight figured DB 605-based DB 610 by June 1940,[1] and just slightly earlier, in March 1940, the 1.8 tonne approximate weight replacement for the DB 606 and 610, the DB 603-based DB 613 "power system" of nearly 3,500 PS output.[1] For example, the Rolls-Royce Vulture was basically two Rolls-Royce Peregrine engines joined at the crankcase, thus producing the X-configuration of the cylinders.
The DB 604 was a completely new Daimler-Benz engine design featuring a perfectly square stroke ratio of 135 mm x 135 mm. The short stroke ratio enabled the relatively high engine speed of 3,200 rpm. The first engine tested in 1939 on the engine test stand achieved a power output of 1,725 kW (2,350 hp).[2]
Further development of the first test engines led to the DB 604A/B. The only difference between the DB 604A and the DB 604B - as with the similarly suffixed A and B versions of the DB 606 and 610 "coupled" power system engines - was the direction in which the DB 604's crankshaft turned. The DB 604A/B was equipped with a two-speed supercharger, achieving 1,835 kW (2,500 hp) whilst testing.
Development of the DB 604 was canceled by the Reich Air Ministry (RLM - German: Reichsluftfahrtministerium) in September 1942.
Engines on display
[edit]A preserved Daimler-Benz DB 604 is on public display at the Flugausstellung L.+ P. Junior museum, Hermeskeil, Germany.
Specifications (DB 604A/B)
[edit]
General characteristics
- Type: Water-cooled 24-cylinder X (4 rows of 6-cylinders) piston engine
- Bore: 135 mm
- Stroke: 135 mm
- Displacement: 46.38 L (2,830 cu in)
- Dry weight: 1,080 kg (2,379 lb)
Performance
- Power output: 1,835 kW (2,500 hp) at 3,200 rpm at 5,100 m (16,732 ft)
- Specific power: 39.6 kW/L (.9 hp/cu in)
- Compression ratio: 7.0:1
- Power-to-weight ratio: 1.71 kW/kg (1.05 hp/lb)
See also
[edit]Comparable engines
Related lists
References
[edit]Notes
[edit]Bibliography
[edit]- Bingham, Victor (1998). Major Piston Aero Engines of World War II. Shrewsbury, UK: Airlife Publishing. ISBN 1-84037-012-2.
- Christopher, John (2013). The Race for Hitler's X-Planes: Britain's 1945 Mission to Capture Secret Luftwaffe Technology. Stroud, UK: History Press. ISBN 978-0-7524-6457-2.
- Gunston, Bill (2006). World Encyclopedia of Aero Engines: From the Pioneers to the Present Day (5th ed.). Stroud, UK: Sutton. ISBN 0-7509-4479-X.
- von Gersdorff, Kyrill; Schubert, Helmet et al. Die deutsche Luftfahrt: Flugmotoren und Strahltriebwerke. Bernard & Graefe Verlag, Bonn, 2007. ISBN 3-7637-6128-4
- Neil Gregor Daimler-Benz in the Third Reich. Yale University Press, 1998
External links
[edit]
Wikimedia Commons has media related to Daimler-Benz DB 604.
