Carl Pfleiderer

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Carl Paul Pfleiderer (born July 3, 1881 in Waiblingen , † August 7, 1960 in Braunschweig ) was a German mechanical engineer and from 1912 to 1952 professor at the Technical University of Braunschweig . He developed the theoretical foundations of modern centrifugal pump construction .

life and work

The son of the cloth maker Carl Pfleiderer (1845–1927) and his wife Marie, b. Wirth (1847–1895) graduated from secondary school in 1899. He studied mechanical engineering at the Technical University of Stuttgart from 1901 to 1905 and completed his studies with the state examination and the degree of Dipl.-Ing. In 1906 the doctorate to Dr.-Ing. with a thesis on dynamic processes when starting up machines . From 1907 he worked in the industry for several years as a designer for pumps and steam engines. From 1909 he worked at Thyssen in Mülheim an der Ruhr as a senior engineer or department head.

University professor in Braunschweig

On January 1, 1912, Pfleiderer was appointed full professor for steam engine construction at the TH Braunschweig. During the First World War he did his military service from 1914 until 1917 as captain and leader of an artillery battery. When he returned to the university, he had been in charge of the university's own power plant since 1920, which was also used for research and training purposes. From 1945 to 1947 Pfleiderer was the university's prorector . Pfleiderer retired in 1949 and lived in 1951 at Herzogin-Elisabeth-Strasse 97 in Braunschweig. In September 1952 Hartwig Petermann (1919–1997) succeeded him as director of the institute.

Honors

Pfleiderer was made an honorary doctorate from the University of Stuttgart in 1951 on the occasion of his 70th birthday. Also in 1951 he was made an honorary member of the VDI and on July 3, 1951 he was made an honorary senator of the TH Braunschweig. Since 1949 he was a full member of the Braunschweig Scientific Society . In 1956 he was awarded the Federal Cross of Merit and in the same year the Pfleiderer Institute for Fluid Flow Machines was named after him. In Braunschweig, Pfleidererstraße in the Kanzlerfeld district bears his name. On the occasion of Pfleiderer's 100th birthday, the VDI conference on hydraulic fluid flow machines - Carl Pfleiderer memorial conference was held at the TU Braunschweig from October 14 to 16, 1981 . On his 125th birthday, from July 3 to September 15, 2006, the exhibition Prof. Dr.-Ing. Carl Pfleiderer in the Braunschweig University Library .

Scientific achievement

Pfleiderer's most important research area was centrifugal pump construction. Such pumps for pumping liquids have been used for a long time, but there were no sound calculation bases for their construction. These processes were developed and patented by Pfleiderer, and Pfleiderer 's underperformance approach attracted worldwide attention and is still used today. His work on centrifugal pumps , published in 1924, soon became the standard work for the calculation and design of centrifugal pumps.

Fonts (selection)

  • The centrifugal pumps. J. Springer, Berlin 1924, DNB 57565709X
  • Predetermination of the characteristics of high-speed centrifugal pumps. VDI-Verlag, Berlin 1938, DNB 575657111
  • Hut. Vol. 3, 1931, section Pumps u. Compressor.
  • The water turbines. Wolfenbütteler Verlagsanstalt, Wolfenbüttel, Hanover 1947, DNB 453763286 .
  • Steam turbines. Wolfenbütteler Verlagsanstalt, Wolfenbüttel, Hanover 1949, DNB 453763200 .
  • Mechanical energy storage of constant volume. In: Eduard Justi (ed.): Treatises of the Braunschweigische Wissenschaftlichen Gesellschaft. Volume III. 1951. Friedr. Vieweg & Sohn, Braunschweig, 1951, p. 200 - p. 215.
  • Fluid machines , Berlin 1952. This standard work is a classic of technology and appeared in its 7th edition in 2005, together with Hartwig Petermann ( ISBN 3-540-22173-5 ) and has been translated into several languages.
  • The centrifugal pumps for liquids and gases: water pumps, fans, turbo blowers, turbo compressors. Springer, Berlin 1955, DNB 453763227

literature

  • Günter Kosyna:  Pfleiderer, Carl Paul. In: New German Biography (NDB). Volume 20, Duncker & Humblot, Berlin 2001, ISBN 3-428-00201-6 , p. 350 f. ( Digitized version ).
  • Horst-Rüdiger Jarck, Günter Scheel (Ed.): Braunschweigisches Biographisches Lexikon. 19th and 20th centuries. Hanover 1996, pp. 459f.
  • Norman-Mathias Pingel: Pfleiderer, Carl . In: Braunschweiger Stadtlexikon. Braunschweig 1992.

Web links

Individual evidence

  1. ↑ Eduard Justi (Ed.): Biographical Notes. In: Treatises of the Braunschweigische Wissenschaftlichen Gesellschaft. Volume III. 1951. Friedr. Vieweg & Sohn, Braunschweig, 1951, p. 299.
  2. ^ University archive of the Technical University of Braunschweig: holdings B3. Files of the honorary senators or honorary citizens. ( Memento from February 1, 2017 in the Internet Archive ) Braunschweig, 2010, p. 8.
  3. ↑ Exhibition - Prof. Dr.-Ing. Carl Pfleiderer ( Memento from January 8, 2013 in the Internet Archive ) on biblio.tu-bs.de
personal data
SURNAME Pfleiderer, Carl
ALTERNATIVE NAMES Pfleiderer, Carl Paul
BRIEF DESCRIPTION German mechanical engineer and university professor
DATE OF BIRTH July 3, 1881
PLACE OF BIRTH Waiblingen
DATE OF DEATH August 7, 1960
Place of death Braunschweig