PROBLEM TO BE SOLVED: To take countermeasures against a significant amount of waste fuel in a jet airplane, used for requirement to eliminate a counter-lift-force-action, which is caused by conventionally downward inclination of a nose of the jet airplane, making head wind flow from the nose to below a fuselage to push the nose and the fuselage downward.SOLUTION: An energy saving jet airplane is configured to enhance operational performance, to expand a range, as well as to save considerable amount of fuel, by forming a nose of the jet airplane inclined upward, and by attaching fins, each having a width of fuselage, to bottom parts on both sides of the nose ahead of a front leg chamber and on bottom parts on both sides behind a main leg chamber, to increase lift-force-actions.SELECTED DRAWING: Figure 1
【課題】 従来、ジェット機の機首は、下向きのため、向い風は機首から胴体上方に流れ、機首と胴体を下方に押す反揚力作用が発生する。このため、ジェット機の燃料は、反揚力作用をなくすための分も必要とし、相当の燃料をむだ使いしている。【解決手段】 ジェット機の機首を上向きに形成すると共に前脚室前の機首両側下部と主脚室の後部両側下部に、胴体巾のひれを垂設して構成した。これにより、揚力作用は大きくなるので、運行性能は向上し、航続距離を伸ばせると共に燃料を相当節約でき、省エネジェット機にすることができる。【選択図】図1
ENERGY SAVING JET AIRPLANE WITH FINS
ひれ付き省エネジェット機
2018-05-17
Patent
Elektronische Ressource
Japanisch
IPC: | B64C AEROPLANES , Flugzeuge |
Engineering Index Backfile | 1927
|Application of Energy Saving Fins on Rudders
British Library Conference Proceedings | 2015
|Energy-saving hulls - are fins or ducts necessary?
Tema Archiv | 1986
|Energy-saving potential from fins on propeller boss caps
Tema Archiv | 1988
Stability of body stabilized by fins and suspended from airplane
Engineering Index Backfile | 1944
|