Rudolf Erren

Rudolf Arnold Erren (15 August 1899 – death date unknown) was a German engineer and inventor who did important work on the use of hydrogen fuels in the early 20th century. He had several patents, developed the Erren engine,[1] and his work was "apparently the earliest reported use of hydrogen-engine supercharging of any kind."[2] One of Germany's World War II U-boats had a hydrogen engine designed by Erren.[3]

Erren was born in Prussia, served in both the German Army and Air Force during World War I, then became a police officer, and was "acquitted of a charge of murdering a superior officer."[4] Erren was interned in Canada by the British during World War II[5] and repatriated 28 October 1945.[6] He may have applied for British naturalisation in 1946.[7] He returned to Germany and remarried.[4] Erren's research records were lost during WWII.[2]

Erren's ex-wife Rosalie Mercy Burlin Erren Henderson (married 1931, divorced 1937) was one of John Haigh's murder victims.[8][9][4]

The Rudolf Erren Award of the International Association of Hydrogen Energy (IAHE) is named in his honor.[10]

See also

Selected publications
  • Erren, R.A. and Camnbell, Vf.H. , "Hydrogen: A Commercial Fuel for Internal Combustion Engines and Other Purposes", J. Inst. of Fuel (London), Vox. 6,   No. 29, June 1933, pp. 277–290.

References
  1. "New Company Formed to Exploit Erren Engine A". The Commercial Motor Archive. 1933-04-28. Retrieved 2023-04-18.
  2. STEVENS INSTITUTE OF TECHNOLOGY (1971-08-31). HYDROGEN AS A FUEL (PDF) (Report). PREPARED FOR OFFICE OF NAVAL RESEARCH ADVANCED RESEARCH PROJECTS AGENCY.
  3. Hordeski, Michael F. (2008). Alternative Fuels: The Future of Hydrogen. The Fairmont Press, Inc. p. 26. ISBN 978-0-88173-596-3.
  4. Oates, Dr Jonathan (2014-10-30). John George Haigh, the Acid-Bath Murderer: A Portrait of a Serial Killer and His Victims. Wharncliffe. pp. 70–72. ISBN 978-1-78346-214-8.
  5. "Prisoners of War, 1715-1947", database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:6FWY-8KT4  : 27 April 2022), Rudolf Erren, 1939-1942.
  6. Ancestry.com. UK, World War II Alien Internees, 1939-1945 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2019. Original data: HO 396 WW2 Internees (Aliens) Index Cards 1939-1947, The National Archives, Kew, London, England.
  7. Rudolph Arnold Erren: application for naturalisation. 1946.
  8. "England and Wales Marriage Registration Index, 1837-2005," database, FamilySearch(https://familysearch.org/ark:/61903/1:1:QV87-3M6G : 8 October 2014), Rudolf A Erren and null, 1931; from "England & Wales Marriages, 1837-2005," database, findmypast (http://www.findmypast.com : 2012); citing 1931, quarter 4, vol. 1B, p. 705, Stockton, London, England, General Register Office, Southport, England.
  9. "Murder Mile UK True-Crime Podcast #81: Sulphuric: 5 - Rosalie Henderson". Murder Mile UK True Crime Podcast - "one of the best British & UK True Crime podcasts". Retrieved 2023-04-18.
  10. "Meet a Six-Time Fellow at Michigan Tech". College of Engineering Blog. 2022-07-21. Retrieved 2023-04-18.


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