To provide an electro-hydraulic circuit that is light weight and can switch switching oil passages of a selector valve with low power consumption, and an aircraft.SOLUTION: An electro-hydraulic circuit comprises: a supply oil passage 90 connecting an oil supply device 10 and a drive unit 20 that is driven by the hydraulic pressure of hydraulic oil supplied from the oil supply device; a selector valve 30 that is provided in the supply oil passage 90 and switches a plurality of switching oil passages of the hydraulic oil supplied to the drive unit 20; check valves 50 provided in a pilot hydraulic passage 94; an electromagnetic valve 60 that is provided in the pilot hydraulic passage 94 on the downstream side of the check valves 50 in a circulation direction of the hydraulic oil and switches states of hydraulic oil supply to the selector valve 30; a sealing material that is provided in the selector valve 30 and seals the hydraulic oil providing pilot hydraulic pressure; and a third release valve that is provided in the pilot hydraulic passage 94 on the downstream side of the check valves 50 in the circulation direction and can release the pilot hydraulic pressure in the pilot hydraulic passage 94.SELECTED DRAWING: Figure 1
【課題】軽量かつ低消費電力によって切替弁の切替油路を切り替えることができる電動油圧回路及び航空機を提供する。【解決手段】油供給装置10から供給される作動油の油圧によって駆動する駆動部20と、の間を接続する供給油路90と、供給油路90に設けられ、駆動部20へ供給される作動油の複数の切替油路を切り替える切替弁30と、パイロット油圧路94に設けられる逆止弁50と、作動油の流通方向において、逆止弁50よりも下流側のパイロット油圧路94に設けられ、切替弁30への作動油の供給状態を切り替える電磁弁60と、切替弁30に設けられ、パイロット油圧となる作動油を封止する封止材と、流通方向において、逆止弁50よりも下流側のパイロット油圧路94に設けられ、パイロット油圧路94のパイロット油圧を開放可能な第3開放弁と、を備える。【選択図】図1
ELECTRO-HYDRAULIC CIRCUIT AND AIRCRAFT
電動油圧回路及び航空機
2021-08-10
Patent
Electronic Resource
Japanese