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English to Portuguese translations [PRO]
Tech/Engineering - Aerospace / Aviation / Space / motor | | English term or phrase: leaner | There is nothing controversial about the above methods to lower engine temps, but when it comes to mixture setting, pilots and experts diverge. Everyone knows that the leaner the fuel-air mixture the higher the temperature of the combustion in the cylinder, "which is measured as exhaust gas temp. However, when die exhaust gas temperature (EGT) reaches its peak and the mixture is leaned further, EGT goes down. The lean of peak (LOP) mixture produces less power and thus less heat.
The controversy about LOP operation is about detonation. At some engine temperatures and power settings, a too-lean mixture can detonate, which is to say explode, inside the cylinder instead of burning evenly.- Detonation will quickly do dangerous and permanent damage to a piston engine, so the traditional advice has been to keep the mixture safely rich of peak to avoid any possibility of detonation. But in many engines it is completely safe to run LOP at typical cruise power settings. In fact, in die days of the big piston engine airliners, LOP was typically used in cruise, though there were also cockpit instruments designed to warn of the onset of detonation. |
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 Marlene Curtis
United States
Local time: 15:47
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3 mins confidence:   peer agreement (net): +1
12 mins confidence: peer agreement (net): +3 (mistura) mais pobre em combustível/mais fraca
Explanation:
is leaning out - [ Translate this page ]
lean mixture é uma mistura pobre em combustível (muito oxigênio na proporção) Example sentence(s): When mixture is lean, ignition becomes hard and ...
www.proz.com/kudoz/english_to.../1544784-is_leaning_out.htm...
lean mixture - Definition of lean mixture in English, Spanish, French
Portuguese English To Portuguese - lean mixture. mistura fraca (mistura onde a porcentagem da substância misturada é baixa) ...
www.dictionarist.com/lean mixture
| Marlene Curtis
United States
Local time: 15:47
Native speaker of:  Portuguese
PRO pts in category: 98
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