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New Homepage in progress

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A new Homepage is being developed.

Last Updated on Monday, 25 May 2020 14:24

Project of the new paddle steamer for the upper Rhine makes progress

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DLM is currently working on the engineering and design of a new remote-controlled two cylindre compound condensing steam engine and an automatic boiler with a C02-neutral biomass firing system. The contract had been placed by a Swiss society named Pro Dampfer aiming to build an all-new paddle steamer for the upper Rhine between the Swiss town Schaffhausen and the German town Konstanz. Within the framework of this contact, several important milestones have now been achieved. A computer program for the thermodynamic calculatiion of the complex two cylindre compound condensing steam engine has been successfully completed. The calculated indicating diagrams coincide very accurately with measured diagrams. In a next  step the specific parameters of this project were used to desing the new steam eninge and the boiler. These are not yet manufacturing, but assembly drawings allowing precise knowledge of the requerements for power, mass and volume.



Draft of the general assembly of the steam plant in the ships hull. The paddle wheels are not shown. Drawing by DLM


Draft of the projected new steam engine. Drawing by DLM



Last Updated on Wednesday, 08 April 2020 10:19

SS Spiez: Commissioning of the Steam Boiler

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DS Spiez_Ausblasen der Dampfleitung

The new steam boiler of the screw steamer SS SPIEZ has been commissioned at the BLS shipyard in Thun as from March 9 to 11, 2020. By means of its electric preheating device located next to the boiler in the boiler room, the boiler was previously preheated electrically to 8 bar. In the afternoon of March 9 the oil burner has been ignited for the first time, followed by the usual commissioning and test procedures. Amongst these are the impressive blowing out of the main steam pipe. Following the cleaning of the main steam pipe, it is usually connected to the steam engine. As a result of the currently (too) low water level of Lake Thun, it is not possible to operate the steam engine which is directly coupled to the screw. For the test run of the new steam engine see: https://www.youtube.com/watch?v=2EmvZid8Hm0

The following drawing illustrates how the final design of the ship (Drawng: aardeplan ag - Architektur SIA 6340 Baar):

DS Spiez_Projektzeichnung


Last Updated on Thursday, 12 March 2020 17:50

Vortrag an der TU Berlin: Chancen der modernen Dampftraktion in Zeiten des Klimawandels

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Am Montag, den 27. Januar 2020 um 16 Uhr hält Dipl. Masch. Ing. ETH Roger Waller einen Vortrag zum obgenanntenThema. Der Vortrag ist öffentlich, der Eintritt ist frei. Weitere Infos sind dem Anhang zu entnehmen. Sorry, this paper is given in German only.

Download this file (DLM_2020_01_27_Vortrag TU Berlin.pdf)DLM_2020_01_27_Vortrag TU Berlin.pdf[ ]376 Kb
Last Updated on Wednesday, 08 January 2020 10:45

New Production of Boiler Safety Valves for Steam Locomotives

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DLM will soon start another production run of boiler safety valves that were first produced for the new rack steam locomotives built in 1992 /96. Since then more than 30 safety valves have been manufactured for various steam locomotives in Austria, Germany and Switzerland. Until mid January 2020, it is possible to join the production run and profit from the moderat prices. For techniical data see: http://www.dlm-ag.ch/spare-parts/57-sicherheitsventil?lang=en

Last Updated on Thursday, 19 December 2019 15:25
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