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公开(公告)号：US06666654B2
公开(公告)日：2003-12-23
申请号：US10087986
申请日：2002-03-05
IPC分类号： F01D514
CPC分类号： F01D5/141
摘要： A blade for an axial-flow turbine includes an intrados producing a positive pressure between a leading edge and a trailing edge, and an extrados producing a negative pressure. The intrados is formed at its rear portion with a flat surface portion connected to the trailing edge, and the extrados has a curved surface portion formed at least at a portion corresponding to the flat surface portion. The trailing edge of the turbine blade is pointed at its end. The angle of intersection between the intrados and the extrados at the trailing edge is a right angle or an acute angle. Thus, it is possible to inhibit the flowing of a gas from the intrados at the trailing edge toward the extrados and to decrease the degree of curvature of the extrados at the trailing edge portion to reduce the flow speed, thereby minimizing a shock wave generated at the trailing edge portion to reduce the pressure loss and enhance the performance of the turbine.
摘要翻译： 用于轴流涡轮机的叶片包括产生前缘和后缘之间的正压的内部，以及产生负压的外径。 内部的后部形成有连接到后缘的平坦表面部分，并且外部具有至少形成在与平坦表面部分对应的部分处的弯曲表面部分。 涡轮机叶片的后缘指向其端部。 后缘和后端之间的交叉角度是直角或锐角。 因此，可以抑制气体从后缘处的内部流向外部并且降低后缘部分处的外凸的曲率以减小流速，从而最小化在 后缘部分，以减小压力损失并增强涡轮机的性能。
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公开(公告)号：US5549344A
公开(公告)日：1996-08-27
申请号：US438667
申请日：1995-05-10
CPC分类号： B60H1/0055 , B60K37/00 , B60R16/0207 , B62D25/142 , B62D25/145
摘要： A base member is laid in a space portion, which is defined by an instrument panel, in a vehicle width direction over a generally entire width of the vehicle, and a plurality of ducts is integrally formed with the base member. Furthermore, a meter placing portion, on which a meter is placed, and an air bag placing portion, on which an air bas is placed, are formed on the base member, and a harness placing portion 26, on which a flat harness is placed, is also formed on the base member in the vehicle width direction. Accordingly, the base member with which the plurality of ducts is integrally formed is a separate body from the instrument panel. Even in the case where the size of the instrument panel is changed, the base member is not required to correspond to the instrument panel and, therefore, the ducts can be commonly used. Moreover, since the base member is formed with ducts each having a closed structure, in section, it has a predetermined physical strength. Since this base member is laid in the vehicle width direction over a generally entire width of the vehicle, that portion of the vehicle body where the instrument panel is arranged is increased in physical strength owing to the provision of this base member for the sake of a possible side crush or collision of the vehicle.
摘要翻译： 基部构件被放置在由仪表板限定的空间部分中，在车辆宽度方向上在车辆的大致整体宽度上，并且多个管道与基座构件一体地形成。 此外，在基座部件上形成有放置有仪表的仪表放置部和安放有空气基座的气囊放置部，以及放置有扁平线束的线束放置部26 也在车辆宽度方向上形成在基座部件上。 因此，与多个导管一体形成的基座部件是与仪表板分开的主体。 即使在仪表板的尺寸发生变化的情况下，也不需要将基座部件与仪表板对应，所以可以通常使用导管。 此外，由于基部构件具有各自具有封闭结构的导管，所以具有预定的物理强度。 由于该基座部件在车辆的大致整个宽度上被放置在车辆宽度方向上，所以设置仪表板的车体的那部分由于设置该基座部件而增加了体力 可能的侧面挤压或车辆碰撞。
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公开(公告)号：US5685595A
公开(公告)日：1997-11-11
申请号：US699695
申请日：1996-08-15
CPC分类号： B60H1/0055 , B60K37/00 , B60R16/0207 , B62D25/142 , B62D25/145
摘要： A base member is laid in a space portion, which is defined by an instrument panel, in a vehicle width direction over generally an entire width of the vehicle, and a plurality of ducts is integrally formed with the base member. Furthermore, a meter placing portion on which a meter is placed and an air bag placing portion on which an air bag is placed are formed on the base member, and a harness placing portion on which a flat harness is placed is also formed on the base member in the vehicle width direction. Accordingly, the base member with which the plurality of ducts are integrally formed is a separate body from the instrument panel. Even in the case where the size of the instrument panel is changed, the base member is not required to correspond to the instrument panel and, therefore, the ducts can be commonly used. Moreover, since the base member is formed with ducts each having a closed structure in section, it has a predetermined physical strength. Since this base member is laid in the vehicle width direction over a generally entire width of the vehicle, that portion of the vehicle body where the instrument panel is arranged is increased in physical strength owing to the provision of this base member for the sake of a possible side crush or collision of the vehicle.
摘要翻译： 基部构件被放置在由仪表板限定的空间部分中，在车辆宽度方向上大致整个车辆宽度上，并且多个管道与基座构件一体地形成。 此外，在基座部件上形成有放置仪表的仪表放置部和安放有气囊的气囊放置部，并且在基部上形成有放置有扁平线束的线束放置部 会员在车宽方向。 因此，与多个管道一体形成的基部构件是与仪表板分开的主体。 即使在仪表板的尺寸发生变化的情况下，也不需要将基座部件与仪表板对应，所以可以通常使用导管。 此外，由于基部构件具有截面封闭结构的导管，所以具有预定的物理强度。 由于该基座部件在车辆的大致整个宽度上被放置在车辆宽度方向上，所以设置仪表板的车体的那部分由于设置该基座部件而增加了体力 可能的侧面挤压或车辆碰撞。
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公开(公告)号：US06802474B2
公开(公告)日：2004-10-12
申请号：US10410215
申请日：2003-04-10
IPC分类号： B64C300
CPC分类号： F01D5/141 , F04D29/544 , Y02T50/673
摘要： In a high turning airfoil capable of being suitably applied to each of blades constituting a blade row of an axial flow-type compressor, both of an intrados generating a positive pressure and an extrados generating a negative pressure exist on one side of a chord line, and the curvature of the extrados made non-dimensional by a chord length has a maximum value between a position corresponding to 10% of the chord length and a position corresponding to 35% of the chord length, and a minimum value in the rear of the position of the maximum value and between a position corresponding to 30% of the chord length and a position corresponding to 50% of the chord length. Preferably, a difference between the maximum value and the minimum value of the curvature is equal to or larger than 0.5, and a turning angle is equal to or larger than 40°. With this airfoil, the total pressure loss coefficient is decreased more than that in an airfoil according to a comparative example in the entire Reynolds number region including medium and high Reynolds number regions and particularly, is decreased remarkably more than that in the airfoil according to the comparative example in a region of low Reynolds number equal to or smaller than 130,000. This is considered because a laminar flow separation region on the extrados of the airfoil is small in the low Reynolds number region, and a phenomenon of reverse flow within bubbles in the laminar flow separation region is weakened.
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