Barnard, Delbert J.Heberer, Eugene O.Pauly, Joan H.
인용정보
피인용 횟수 :
14인용 특허 :
2
초록▼
A smooth surfaced, submerged air inlet for use generally forwardly of an engine in an aircraft (missile or other air vehicle). The inlet has an opening having wall surfaces adapted to be flush with or inwardly of an aircraft body surface. The wall surfaces of the opening have a leading and outer end
A smooth surfaced, submerged air inlet for use generally forwardly of an engine in an aircraft (missile or other air vehicle). The inlet has an opening having wall surfaces adapted to be flush with or inwardly of an aircraft body surface. The wall surfaces of the opening have a leading and outer end in a plane and the surfaces extend inwardly to form an uncovered shallow channel-shaped portion to the inlet, the channel portion deepening inwardly in the trailing direction and continuing into a partial ellipse portion of the opening. The ellipse portion deepens inwardly as it extends in a trailing direction and has substantially parallel wall surfaces extending outwardly of the ellipse in the direction toward the level of the plane. There are extensions of said substantially parallel wall surfaces diverging outwardly to said plane. There is an inwardly trailing surface, spaced outwardly from the partial ellipse portion, being joined to the substantially parallel wall surfaces to form an outer cover for a trailing part of said inlet and of said partial ellipse portion. The inlet, including the cover, trails inwardly and is contoured radially as it trails to form a substantially circular wall surface at its inner end.
대표청구항▼
1. An inwardly extending, submerged, smooth surfaced air inlet, comprising: an inlet opening having wall surfaces adapted to be flush with or inwardly of a body surface; said wall surfaces having a leading and outer end in a plane, said wall surfaces extending inwardly and forming an uncovered s
1. An inwardly extending, submerged, smooth surfaced air inlet, comprising: an inlet opening having wall surfaces adapted to be flush with or inwardly of a body surface; said wall surfaces having a leading and outer end in a plane, said wall surfaces extending inwardly and forming an uncovered shallow channel-shaped portion of the inlet; said channel portion deepening inwardly in the trailing direction continuing into an outwardly opening, partial ellipse portion; said partial ellipse portion deepening inwardly as it extends in a trailing direction and having substantially parallel wall surfaces extending outwardly of the ellipse portion in the direction toward the level of said plane; extensions of said substantially parallel wall surfaces diverging outwardly to said plane; and an inwardly trailing surface, spaced outwardly from said partial ellipse portion, being joined to said substantially parallel wall surfaces to form an outer cover for a trailing part of said inlet and of said partial ellipse portion; said inlet, including said cover, trailing inwardly, and being contoured radially as it trails to form a substantially circular wall surface at its inner end. 2. The invention according to claim 1 in which: said channel portion has a flat surface base, narrowing and trailing inwardly into said partial ellipse portion; the wall surfaces of said channel portion extending from said base in the form of ogee curves having outer diverging ends terminating in said plane. 3. The invention according to claim 2 in which: said partial ellipse portion, formed as a continuation of said channel portion, has ogee curves formed with said ellipse portion on each side thereof, said ogee curves trailing and continuing from those curves on said channel walls, said ogee curves formed with said partial ellipse portion terminating in said plane. 4. The invention according to claim 2 in which: said extensions of said substantially parallel wall surfaces form ogee curves with said partial ellipse portion and with said last wall surfaces on both sides of said ellipse portion. 5. The invention according to claim 1 in which: said inwardly trailing surface has a leading, substantially straight edge across inlet opening; said edge being substantially perpendicular to the direction of an axis of said partial ellipse portion; said edge being the leading edge of a cowl, blunted to have a relatively sharp curve around said edge. 6. The invention according to claim 5 in which: an outer trailing surface extending from said cowl generally in said plane. 7. The invention according to claim 6 in which: said cowl is centrally positioned transversely across said inlet and is transversely inwardly spaced from said substantially parallel wall surfaces, recesses formed in the spaces adjacent the cowl and parallel wall surfaces, said recesses being faired and having a trailing curvature merging into said plane. 8. The invention according to claim 1 in which: said trailing part of said inlet having said outer cover has smooth closed wall surfaces; a leading portion of said outer cover having a flat surface, narrowing and becoming generally circular as it trails inwardly. 9. The invention according to claim 1 in which: all surfaces of said inlet are smooth and all joining surfaces are curved. 10. The invention according to claim 7 in which: said recesses are groove-shaped in cross sections generally perpendicular to said plane; said grooves trailing laterally on both sides of said cowl; said cowl leading edge being transversely inwardly of said grooves. 11. The invention according to claim 10 in which: said grooves being formed so as to have portions thereof leading with respect to said cowl edge; said leading portions being in said opening and being outward extensions of said wall surfaces in the direction toward said plane. 12. The invention according to claim 11 in which: said leading portions of said grooves have their nadirs inwardly of said cowl edge in the direction away from said plane. 13. The invention according to claim 12 in which: said leading portions have leading edges transversely outwardly of said cowl edge; said leading edges of said leading portions having trailing surfaces forming curves which join said wall surfaces with said inwardly trailing surface and said cowl. 14. The invention according to claim 1 in which: said inwardly trailing surface has a leading, substantially straight edge across said inlet opening; said edge being substantially perpendicular to the direction of an axis of said partial ellipse portion; said edge being the leading edge of a cowl, blunted to have a relatively sharp curve around said edge; an outer trailing surface extending from said cowl generally in said plane; said cowl is centrally positioned transversely across said inlet and is transversely inwardly spaced from said substantially parallel wall surfaces; and grooved-shaped recesses formed in the spaces adjacent the cowl and parallel wall surfaces; said recesses being faired and having a trailing curvature merging into said plane, and extending laterally on both sides of said cowl. 15. An inwardly extending submerged air inlet for use forwardly of an engine in an aircraft, comprising: an inlet opening having smooth surfaces, all of said surfaces extending along or inwardly of a plane adapted to be approximately flush with surrounding surfaces of an aircraft; said inlet trailing inwardly of said opening and having smooth contours in a transverse direction; a smooth ramp surface forming an inner surface of said inlet opening and trailing inwardly of said opening; inwardly trailing, substantially parallel smooth side wall surfaces having transverse curves joining said ramp surface, said side wall surfaces extending outwardly in the direction toward said plane; a smooth cowl lip extending transversely adjacent the trailing end of said opening; an inwardly trailing smooth surface extending from said lip, and forming an outer surface of said inlet and joining said side wall surfaces with curves to transversely peripherally close said inlet; and smoothly curved grooved-shaped recesses formed adjacent intersections of said cowl lip and said side wall surfaces, said recesses trailing into the level of said plane. 16. The invention according to claim 15 in which: said smooth surfaces are means to provide attached air inlet flow on said inlet surfaces so as to have low flow losses. 17. The invention according to claim 15 in which: said smooth surfaces are means to provide total air inlet pressure recovery and lower distortion characteristics at yaw angles up to 15° for a wide range of inlet mass flows. 18. The invention according to claim 15 in which: said inlet has a central trailing, inwardly extending axis; said axis and inlet being at an acute angle with said plane, the axis and inlet being at the same angle inwardly beyond cowl; said axis and inlet curving beyond said cowl to be substantially parallel to said plane. 19. The invention according to claim 15 in which: said recesses are valleys in cross sections generally perpendicular to said plane; said valleys trailing beyond said intersections and said cowl lip laterally on both sides of said lip; said lip being centrally transversely inwardly of said intersections and said valleys. 20. The invention according to claim 19 in which: said valleys being formed so as to have portions thereof leading with respect to said lip; said leading portions being in said opening and being outward extensions of said side wall surfaces in the direction toward said plane. 21. The invention according to claim 20 in which: said leading portions of said valleys have their nadirs inwardly of said lip in the direction away from said plane. 22. The invention according to claim 21 in which: said leading portions have leading edges transversely outwardly of said lip; said leading edges of said leading portions having trailing surfaces forming said curves which join said side wall surfaces with said inwardly trailing smooth surface extending from said lip. 23. An inwardly extending, submerged, smooth surfaced air inlet, comprising: an inlet opening having wall surfaces adapted to be flush with or inwardly of a body surface; said wall surfaces having a leading and outer end in a plane, said wall surfaces extending inwardly and forming an uncovered shallow channel-shaped portion of the inlet; said channel portion deepening inwardly in the trailing direction continuing into an outwardly opening, partial ellipse portion; said partial ellipse portion deepening inwardly as it extends in a trailing direction and having substantially parallel wall surfaces extending outwardly of the ellipse portion in the direction toward the level of said plane; extensions of said substantially parallel wall surfaces diverging outwardly to said plane; an inwardly trailing surface, spaced outwardly from said partial ellipse portion, being joined to said substantially parallel wall surfaces to form an outer cover for a trailing part of said inlet and of said partial ellipse portion; said inlet, including said cover, trailing inwardly, and being contoured radially as it trails to form a substantially circular wall surface at its inner end; said inwardly trailing surface having a leading, substantially straight edge across said inlet opening; said edge being substantially perpendicular to the direction of an axis of said partial ellipse portion; said edge being the leading edge of a cowl, blunted to have a relatively sharp curve around said edge; an outer trailing surface extending from said cowl generally in said plane; said cowl being centrally positioned transversely across said inlet and transversely inwardly spaced from said substantially parallel wall surfaces; and recesses formed in the spaces adjacent the cowl and parallel wall surfaces; said recesses being faired and having a trailing curvature merging into said plane; said recesses being groove-shaped in cross sections generally perpendicular to said plane; said grooves trailing laterally on both sides of said cowl; said cowl leading edge being transversely inwardly of said grooves. 24. The invention according to claim 23 in which: said grooves being formed so as to have portions thereof leading with respect to said cowl edge; said leading portions being in said opening and being outward extensions of said wall surfaces in the direction toward said plane. 25. The invention according to claim 24 in which: said leading portions of said grooves have their nadirs inwardly of said cowl edge in the direction away from said plane. 26. The invention according to claim 25 in which: said leading portions have leading edges transversely outwardly of said cowl edge; said leading edges of said leading portions having trailing surfaces forming curves which join said wall surfaces with said inwardly trailing surface and said cowl. 27. An inwardly extending submerged air inlet for use forwardly of an engine in an aircraft, comprising: an inlet opening having smooth surfaces, all of said surfaces extending along or inwardly of a plane adapted to be approximately flush with surrounding surfaces of an aircraft; said inlet trailing inwardly of said opening and having smooth contours in a transverse direction; a smooth ramp surface forming an inner surface of said inlet opening and trailing inwardly of said opening; inwardly trailing, substantially parallel smooth side wall surfaces having transverse curves joining said ramp surface, said side wall surfaces extending outwardly in the direction toward said plane; a smooth cowl lip extending transversely adjacent the trailing end of said opening; an inwardly trailing smooth surface extending from said lip, and forming an outer surface of said inlet and joining said side wall surfaces with curves to transversely peripherally close said inlet; and smoothly curved recesses formed adjacent intersections of said cowl lip and said side wall surfaces, said recesses trailing into the level of said plane; said recesses being valleys in cross sections generally perpendicular to said plane; said valleys trailing beyond said intersections and said cowl lip laterally on both sides of said lip; said lip being centrally transversely inwardly of said intersections and said valleys. 28. The invention according to claim 27 in which: said valleys are formed so as to have portions thereof leading with respect to said lip; said leading portions being in said opening and being outward extensions of said side wall surfaces in the direction toward said plane. 29. The invention according to claim 28 in which: said leading portions of said valleys have their nadirs inwardly of said lip in the direction away from said plane. 30. The invention according to claim 29 in which: said leading portions have leading edges transversely outwardly of said lip; said leading edges of said leading portions having trailing surfaces forming said curves which join said side wall surfaces with said inwardly trailing smooth surface extending from said lip.
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이 특허에 인용된 특허 (2)
Klepacz Janusz (West Nyack NY) Menet Joseph (West Nyack NY), Hydraulic jet propulsion system.
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