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Description
English: Rich–lean cycle during operation with a lambda (oxygen) sensor
Deutsch: Rich-Lean-Zyklus beim Betrieb mit Lambda-Sonde
Date 23 April 2026 (upload date)
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Author
  • Michael J. Esper, Wells L. Green, Stanley R. Merchant
  • Vectorization: Mrmw
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Licensing

Public domain The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)

The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}.

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Date/TimeThumbnailDimensionsUserComment
current09:05, 24 April 2026Thumbnail for version as of 09:05, 24 April 2026450 × 200 (4 KB)Mrmw
20:49, 23 April 2026Thumbnail for version as of 20:49, 23 April 2026450 × 200 (4 KB)Mrmwsvg for File:Rich-Lean-Cycle.png

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