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Self-cleaning with pyrolysis: Difference between revisions
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[[File:1972 Pyrolyse Siemens.jpg|thumb|A Siemens stove with pyrolysis from 1972. (Source: Siemens Corporate Archives)]] | |||
Siemens Elektrogeräte GmbH obtained a patent on May 30, 1973 for an "Electric cooking oven with pyrolytic self-cleaning" invented by Josef Ackermann.<ref>The German Patent and Trade Mark Office (Deutsches Patent- und Markenamt; abbreviation: DPMA), Document DE000002166227A "Back- und Bratofen mit einer Einrichtung zur pyrolytischen Selbstreinigung", Owner Siemens Electrogeräte GmbH, registered on 9.03.1971, published on 30.05.1973. https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&docid=DE000002166227A (last downloaded on 17.11.2016)</ref> A comparable technology had existed in the U.S. for around ten years, with General Electric selling self-cleaning ovens that operated according to the principle of pyrolysis from 1963. However, the innovation was introduced in Germany by Siemens and Neff at the beginning of the 1970s.<ref>BSH Corporate Archives, A05-0023, inform May 2000, Jg. 23, page 27. BSH Corporate Archives, A05-0030, inform 03/2007, Jg. 30, page 19.</ref> | Siemens Elektrogeräte GmbH obtained a patent on May 30, 1973 for an "Electric cooking oven with pyrolytic self-cleaning" invented by Josef Ackermann.<ref>The German Patent and Trade Mark Office (Deutsches Patent- und Markenamt; abbreviation: DPMA), Document DE000002166227A "Back- und Bratofen mit einer Einrichtung zur pyrolytischen Selbstreinigung", Owner Siemens Electrogeräte GmbH, registered on 9.03.1971, published on 30.05.1973. https://depatisnet.dpma.de/DepatisNet/depatisnet?action=bibdat&docid=DE000002166227A (last downloaded on 17.11.2016)</ref> A comparable technology had existed in the U.S. for around ten years, with General Electric selling self-cleaning ovens that operated according to the principle of pyrolysis from 1963. However, the innovation was introduced in Germany by Siemens and Neff at the beginning of the 1970s.<ref>BSH Corporate Archives, A05-0023, inform May 2000, Jg. 23, page 27. BSH Corporate Archives, A05-0030, inform 03/2007, Jg. 30, page 19.</ref> | ||
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The main disadvantage of self-cleaning is its high energy consumption, which has been successfully reduced thanks to ongoing enhancements such as double door seals, reflective interior panes, doors with four panes, new electronic control and reduction in the pyrolysis temperature to 465°C. | The main disadvantage of self-cleaning is its high energy consumption, which has been successfully reduced thanks to ongoing enhancements such as double door seals, reflective interior panes, doors with four panes, new electronic control and reduction in the pyrolysis temperature to 465°C. | ||
BSH still produces cookers with pyrolysis today. For example, Bosh advertised its Series 8 compact ovens as "no cleaning effort thanks to automatic self cleaning."<ref>http://www.bosch-home.com/de/produktliste/kochen-backen/herde-backoefen/kompaktbackoefen (last downloaded on 07.08.2017)</ref> | BSH<ref>BSH was founded in 1967 as Bosch-Siemens Hausgeräte GmbH - BSHG for short. In 1998, the name was changed to BSH Bosch und Siemens Hausgeräte GmbH, with the short form BSH. Since the sale of the Siemens shares in BSH to Robert Bosch GmbH the company’s name is now BSH Hausgeräte GmbH, but still BSH for short.</ref> still produces cookers with pyrolysis today. For example, Bosh advertised its Series 8 compact ovens as "no cleaning effort thanks to automatic self cleaning."<ref>http://www.bosch-home.com/de/produktliste/kochen-backen/herde-backoefen/kompaktbackoefen (last downloaded on 07.08.2017)</ref> | ||
== Notes == | == Notes == | ||