derich
verb/ˌdiˈɹɪt͡ʃ/
Etymology From de- + rich.
1
Aeronautics, Aerospace, Aviation, Business, Engineering, Natural sciences, Physical sciences Rare To make the air–fuel ratio (of a jet engine or a carburetor) leaner (less rich).
- The fuel derich system on each engine protected against severe turbine over-temperature. If the engine's EGT indicator reached 860 degrees Celsius while the system was armed, the air/fuel ratio in the engine was automatically reduced (deriched).2019 [2008], Richard H. Graham, Flying the SR-71 Blackbird: In the Cockpit on a Secret Operational Mission, Motorbooks International, →ISBN, page 62:
- Antonyms
- enrich