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公开(公告)号:US6123295A
公开(公告)日:2000-09-26
申请号:US9355
申请日:1998-01-20
CPC分类号: B64C1/0009 , B64C1/061 , B64C39/10 , B64D37/04 , B64D37/06 , B64G1/14 , B64G1/402 , B64C2001/0036 , B64C2001/0045 , B64C2001/0072 , Y02T50/433
摘要: An improved fuel tank for a lifting body re-entry vehicle having a particular external shape comprising four elongated lobes each having an external surface, each of the external surfaces having selected cylindrical and conical shapes, the lobes being selectively mateable to form a combined external configuration having a multiplicity of cylindrical and conical shapes conformable to at least a portion of the external shape of the vehicle. The cylindrical and conical shapes have variable radii at selected cross-sections thereof, such radii being selected for forming the external configuration. In a particular embodiment, the fuel tank has an initial portion, a midsection portion and a final portion and the cross-sectional shape of the initial portion of the fuel tank is that of two overlapping circles whose centers are positioned above one another, each of the circles being formed by two of the four lobes. In the midportion of the fuel tank, the cross-sectional shape is that of four overlapping circles whose centers are positioned to form a four-lobed closed arcuate figure. In the final portion of the fuel tank, the cross-sectional shape of the fuel tank is that of two overlapping circles whose centers are positioned aside one another, each of the circles being formed by two of the four lobes. When two such fuel tanks are placed side-by-side, the combined external surfaces closely approximate a large portion of the shape of the re-entry vehicle.
摘要翻译: 一种改进的用于具有特定外部形状的提升体再入式车辆的燃料箱,包括四个细长的凸角,每个细长的凸角具有外表面,每个外表面具有选定的圆柱形和圆锥形形状,凸角可选择地配合以形成组合的外部构型 具有与车辆的外部形状的至少一部分相适应的多个圆柱形和圆锥形状。 圆柱形和圆锥形的形状在其选定的横截面具有可变的半径,这种半径被选择用于形成外部构造。 在特定实施例中,燃料箱具有初始部分,中部部分和最终部分,并且燃料箱的初始部分的横截面形状是其中心彼此位于彼此之间的两个重叠圆的横截面形状 圆形由四个凸角中的两个形成。 在燃料箱的中间部分,横截面形状是四个重叠的圆的形状,其中心被定位成形成四裂的封闭弧形图。 在燃料箱的最后部分中,燃料箱的横截面形状是两个重叠的圆的中心彼此相对定位,每个圆由四个凸角中的两个形成。 当两个这样的燃料箱并排放置时,组合的外表面接近重返车辆形状的大部分。