Russian (soviet) jet engine D-30KU-154 by OKB-19 Pavel Soloviev, bottom view. 1 — anti-icing air collector; 2 — oil centrifuge; 3 — oil-to-fuel heat exchanger; 4 — oil pump; 5 — main gearbox; 6 — pump of reverse; 7 — booster fuel pump; 8 — revolutions transducer; 9 — location for hydraulic pumps of aircraft; 10 — fuel pump-regulator; 11 — temperature transducer; 12 — N1 revolutions governor; 13 — N1 revolutions sensor; 14 — alternator; 15 — aux gearbox; 16 — alternator constant speed drive (PPO); 17 — PPO frequency corrector; 18 — PPO air turbine; 19 — air turbine engine starter; 20 — starter valve; 21 — oil scavenge pump
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<span class="int-own-work" lang="en">Own work</span>