FUEL LOADING STRUCTURE AND METHOD FOR MANUFACTURING THE SAME

• Main Authors: FUJIMURA MASANOBU, SHIGENARI TAMOTSU, HARADA TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 01.11.2021
• Subjects: AEROPLANES; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; AIRCRAFT; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT; AVIATION; BLASTING; COMBUSTION ENGINES; COSMONAUTICS; EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLYING SUITS; HEATING; HELICOPTERS; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; PARACHUTES; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; TRANSPORTING; WEAPONS; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

To provide a fuel loading structure capable of loading a necessary fuel while minimizing reduction in an effective space in a central part of an airframe when the airframe is composed of a composite material, and a method for manufacturing the same.SOLUTION: A fuel loading structure 100 constituting an airframe 1 includes stringers 10 extending in the axial direction of the airframe 1 and frames 20 extending in the circumferential direction of the airframe 1. The stringer 10 and the frame 20 are hollow tubes, respectively, and have outer layers and liners. The outer layer is made of a fiber reinforced plastic having a tensile strength which exceeds an in-plane stress caused by the pressure of a liquid fuel filled inside. The liner adheres to the inner surface of the outer layer and has corrosion resistance and airtightness against the liquid fuel. The stringers and the frames further include a plate-shaped skin 30 attached to the outer surfaces of the stringers 10 and a manifold 40 connected to the stringers and frames to store the liquid fuel inside.SELECTED DRAWING: Figure 3 【課題】機体を複合材で構成した場合に、機体の中央部分の有効スペースの低減を最小限に抑えて必要な燃料を搭載することができる燃料搭載構造体とその製造方法を提供する。【解決手段】機体１を構成する燃料搭載構造体１００が、機体１の軸方向に延びるストリンガー１０と、機体１の周方向に延びるフレーム２０を備える。ストリンガー１０及びフレーム２０は、それぞれ中空管であり、外層と、ライナーと、を有する。外層は、内側に充填した液体燃料の圧力による面内応力を超える引張強度を有する繊維強化プラスチックからなる。ライナーは、外層の内面に密着し、液体燃料に対する耐食性と気密性を有する。ストリンガー及びフレームは、さらに、ストリンガー１０の外面に取り付けられた板状のスキン３０と、ストリンガー及びフレームに連結され、内部に液体燃料を貯留するマニホールド４０と、を有する。【選択図】図３