 Diesel Engine - Deutz 3
kfz-tech.de/PDM75
In 1875, this engine imitated the so-called Joule or Brayton process, which consists of compression with as little heat release as possible, injection into the compressed air, transfer of work to a turbine and cooling again
with as little change in pressure as possible. It is considered the forerunner of the diesel engine.
kfz-tech.de/PDM76
Deutz's first diesel engine was characterized by the fact that it obviously no longer needed a crosshead. This complicated the crank mechanism of a reciprocating piston engine by collecting the power coming from it under
the piston and only then passing it on to a connecting rod.
This meant that less pressure was exerted on the piston wall. It was considered necessary for the first diesel engines. The single-cylinder engine had a displacement of 10.4 liters and produced 7.4 kW (10 hp) at 220 rpm.
The fuel was injected using compressed air. The engine weighs 2,500 kg.
Injection using compressed air was retained, but direct injection did not prevail. But the engines grew enormously. In the museum there is a model of a three-cylinder engine that produces a total of 239 kW (325 hp) with 110
liters per cylinder.
kfz-tech.de/PDM77
In 1930, the Deutz AG was called 'Humboldt-Deutzmotoren AG' and produced this in-line six-cylinder engine with pre-chamber and injection pump. 1.9 liters per cylinder provided up to 81 kW (110 hp) at 1,500 rpm. The
weight of the engine: 1,030 kg.
kfz-tech.de/PDM78
And this is the matching cylinder head for the engine fom 1930. The injection took place via a valve with a flat seat needle into a pre-chamber separated from the main combustion chamber, which also contained a glow plug
to help with starting.
kfz-tech.de/PDM79
In 1942, the Schnürle reverse scavenging system had already been invented for a good 10 years. It enabled a better separation of fresh and used gas, here in an engine with 44 kW (60 hp) at 500 rpm from Klöckner-
Humboldt-Deutz AG. It was a time when the two-stroke process was also becoming widespread in smaller diesel engines to achieve a better power-to-weight ratio.
kfz-tech.de/PDM80
This is a model of the ship's propulsion system of the research icebreaker Polarstern from 1980. The Alfred Wegener Institute calls it its 'flagship'. The engine originally had 16 cylinders, each with a displacement of 43 liters
and 7,400 kW (10,000 hp) at 600 rpm. The KHD propulsion system has since increased to four engines with almost twice the power.
kfz-tech.de/PDM81
We don't have any power information for this engine. But it should be much more modern. You can see six cylinders in a row together with a control of the two valves per cylinder with a camshaft located at the bottom on the
side. There appears to be a turbocharger on the right.
kfz-tech.de/PDM82
The two-stroke engine disappeared and a little later the turbocharger joined the vehicle diesel engine and has remained until today. This one still seems a little out of place with its size.
kfz-tech.de/PDM83
The engine seems to be able to handle such a large turbocharger, but it has 12 cylinders with a displacement of 2.3 liters each. That gives then 412 kW (560 hp) at 1500 rpm. In 1959 you could also have it with 3, 4, 6, 8 and
16 cylinders and as a naturally aspirated engine.
kfz-tech.de/PDM84
The engine was also available as an agricultural and construction machine engine. It was available in many variations, from three to six cylinders in line as a naturally aspirated engine, from four to six cylinders with
turbocharging, the latter also intercooled, but always air-cooled.
It was produced from 1984 and has six cylinders here, a displacement of 6.1 liters and an output of 118 kW (160 hp) at 2500 rpm. Its weight is 485 kg. The fuel is allocated by an in-line injection pump with a mechanical
centrifugal governor.
kfz-tech.de/PDM85
With an engine from 1994, we have now come quite a bit closer to the present day,, although the V8 seems to be disappearing from the last of the road trucks. This one is liquid-cooled, has a displacement of 15.8 liters and
produces 400 kW (540 hp) at 2,100 rpm. Its weight: 1,060 kg.
kfz-tech.de/PDM86
This is a partial view of the last air-cooled diesel engine built in Cologne. Its production was moved to Ulm in December 2006. Six cylinders produce 136 kW (185 hp) with a displacement of 6.5 liters. The engine weighs 510
kg.
kfz-tech.de/PDM87
Did you know that the auxiliary drive with 1,220 kW (1,660 hp) and the on-board genset drive with 3 x 333 kW (453 hp) of the Gorch Fock, the sailing training ship of the German Navy, were built at Deutz?
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