To provide a hydraulic system for an aircraft using an inscription gear pump, and an inscription gear pump which is suitable for a hydraulic system for an aircraft.SOLUTION: A hydraulic system 1 for an aircraft includes a hydraulic pump 7 which is connected to hydraulic devices 21 to 26 of at least one aircraft through a supply path 41 and supplies hydraulic oil to the hydraulic devices through the supply path, a prime mover (electric motor 5) which is connected to the hydraulic pump and drives the hydraulic pump, and a controller 6 which is electrically connected to the prime mover and changes rotation speed of the hydraulic pump according to a required flow rate of the hydraulic devices through control of the prime mover, wherein the hydraulic pump is an inscription gear pump 70 of a plurality of stages having a plurality of gear sets 77 each including a pinion gear 72 and a ring gear 74 engaged with each other, and is the inscription gear pump 70 in which discharge parts of each of the stages and a suction part of the subsequent stage are connected in series.SELECTED DRAWING: Figure 1
【課題】内接ギヤポンプを用いた航空機用油圧システム、及び、航空機用油圧システムに適した内接ギヤポンプを提供する。【解決手段】航空機用油圧システム1は、供給路41を介して少なくとも一の航空機の油圧機器21-26に接続されかつ、供給路を通じて油圧機器へ作動油を供給する油圧ポンプ7と、油圧ポンプに連結されかつ、油圧ポンプを駆動する原動機(電気モータ5)と、原動機に電気的に接続されかつ、原動機の制御を通じて、油圧ポンプの回転速度を油圧機器の必要流量に応じて変更するコントローラー6と、を備え、油圧ポンプは、互いに噛み合うピニオンギヤ72とリングギヤ74とをそれぞれ含む複数のギヤセット77を有する複数段の内接ギヤポンプ70であって、各段の吐出部とその次の段の吸込部とが直列に接続された内接ギヤポンプ70である。【選択図】図1
HYDRAULIC SYSTEM FOR AIRCRAFT AND INSCRIPTION GEAR PUMP FOR AIRCRAFT
航空機用油圧システム及び航空機用内接ギヤポンプ
2025-01-09
Patent
Electronic Resource
Japanese
IPC: | B64C AEROPLANES , Flugzeuge / F04C ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS , Rotationskolben- oder Schwenkkolbenmaschinen [Kraft- und Arbeitsmaschinen] für Flüssigkeiten / F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein |
AIRCRAFT HYDRAULIC SYSTEM AND INTERNAL GEAR PUMP FOR AIRCRAFT
European Patent Office | 2024
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