发明名称 |
Reversed cowl flap inlet thrust augmentor |
摘要 |
An adjustable airfoil is described for varying the geometry of a jet inlet and an ejector inlet in a jet engine for providing thrust augmentation and noise reduction. The airfoil comprises essentially a plurality of segments which are extended radially outwardly and retracted relative to the longitudinal axis of the engine as a function of a change in the pressure differential between the upstream and downstream surfaces of the airfoil. A servo mechanism responsive to the change in the pressure differential is coupled to the airfoil to extend and retract the airfoil segments to maintain the pressure at a maximum on the downstream side of the airfoil relative to the pressure on the upstream side of the airfoil. At low speeds, such as at take-offs and landings, the airfoil is fully extended while at high speeds it is fully retracted.
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申请公布号 |
US3883095(A) |
申请公布日期 |
1975.05.13 |
申请号 |
US19730398886 |
申请日期 |
1973.09.19 |
申请人 |
FLETCHER, JAMES C. ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WITH RESPECT TO AN INVENTION OF;CHENG, DAH YU |
发明人 |
FLETCHER, JAMES C. ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WITH RESPECT TO AN INVENTION OF;CHENG, DAH YU |
分类号 |
B64C21/02;B64D33/02;(IPC1-7):B64D33/00 |
主分类号 |
B64C21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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