Jean-Jacques Heilmann

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Jean-Jacques Heilmann

Jean-Jacques Heilmann (born on 1853 in Mulhouse , Alsace; died 1922 ) was a French engineer and inventor . He was the grandson of Josua Heilmann , who had made a contribution to the development of textile machines . For his achievements he was accepted into the Legion of Honor .

Electric-powered steam locomotives

Inner life of the "Fusée Electrique"
Steam-electric locomotive No. 8001 from 1897
Two accumulator railcars with drive developed by Heilmann, 1897

In 1890 Heilmann founded the Société Industrielle de Moteurs Électriques et à Vapeur . As early as 1884 he made his best-known invention of the New Electric Locomotive System Heilmann with steam-electric drive. In 1892/93 the first of these locomotives with the Do'Do 'wheel arrangement was built. The locomotive called "Fusée Electrique" (electric rocket) had a two-cylinder compound engine . The electrical equipment was supplied by Brown, Boveri & Cie.

In 1897 he presented a second locomotive, called the 8001, on a journey from Paris Saint-Lazare train station to Mantes . It had been commissioned by the French western railway company Compagnie des chemins de fer de l'Ouest . Its frame was made of steel girders , it was supported by two bogies with four axles each. The steam boiler and the coal bunker were mounted on the rear section of the frame , while the piston steam engine , the two generators and the compressed air brake as well as the driver's cab were placed above the front bogie. Another similar locomotive with the number 8002 is said to have been built.

The generators were driven by a steam engine with six cylinders , whereby the mutual offset of the cranks by 60 degrees each ensured a smooth run at high speeds . At a voltage of 450 volts, about 900 kilowatts of electrical power should be supplied with which the eight traction motors should move a train weighing 250 tons at 62 miles per hour. The Heilmann locomotive only remained a special public attraction in Paris for a short time during its test drives , as the Compagnie des chemins de fer de l'Ouest refused to use it, so Heilmann sold the machine to the US company Westinghouse . In 1901 the locomotive was scrapped.

Heilmann's inventions play an important role in the history of the electric drive of rail vehicles .

Steam electric automobile

Building on his experience, Heilmann developed a steam-electric automobile in 1899 . His work led to further developments in the field of wheels and gears as well as a turbine that could be operated with gasoline , heating oil and alcohol .

Web links

Commons : Jean-Jacques Heilmann  - collection of images, videos and audio files

literature

  • M. Pennaneach, J.-M. Combe: La technologie au risque de l'histoire . Ed .: R. Belot, M. Cotte, P. Lamard. Université de technologie de Belfort-Montbéliard, Paris 2000 (French: Les locomotives thermoélectriques de Jean-Jacques Heilmann .).
  • JJ Heilmann: Mémoires et compte rendu des travaux de la Société des ingénieurs civils . tape 55 , no. 1 , 1891, p. 149–162 ( cnam.fr - French: Nouveau chemin de fer électrique: Système JJ Heilmann .).
  • Johannes Glöckner: The Heilmann locomotive . In: railway magazine . No. 3 , 2015, ISSN  0342-1902 , p. 48-49 .

Individual evidence

  1. ^ The Heilmann Locomotives
  2. ^ The Heilmann electric locomotive in: Scientific American, September 4, 1897, p. 152, accessed March 8, 2019
  3. ↑ Heilmann in the French National Archives (PDF file; 2.0 MB), page 1: Historique
personal data
SURNAME Heilmann, Jean-Jacques
BRIEF DESCRIPTION French engineer
DATE OF BIRTH 1853
PLACE OF BIRTH Mulhouse (Alsace)
DATE OF DEATH 1922