公开(公告)号：US4012166A

公开(公告)日：1977-03-15

申请号：US529498

申请日：1974-12-04

申请人： Merle L. Kaesser ,  Homer J. Wood

发明人： Merle L. Kaesser ,  Homer J. Wood

IPC分类号： F04D21/00 ,  F04D29/44

CPC分类号： F04D29/441 ,  F05B2200/23 ,  F05D2250/52

摘要： A supersonic shock wave compressor diffuser forms a concentric annulus about a radial compressor having a central axis. Circular channels diverge with an increasing divergence angle as they extend along an arcuate longitudinal center line from an inner circumference very near the periphery of the compressor to the outer circumference of the diffuser. Shock waves may occur within the channels near the inner circumference of the diffuser or may occur within a vaneless diffusion space adjacent the periphery of the compressor and provide efficient energy conversion and reduce the velocity substantially below MACH 1 to further improve the efficiency of the subsonic diffusion downstream therefrom. A logarithmic spiral is approximated by a circular arc subtended by the channel longitudinal axes to permit recovery of angular momentum while the circular cross section of the channels permits recovery of swirl velocity energy. The required diameter of the outer circumference of the diffuser is reduced by using the shock waves to greatly reduce gas velocity within a short distance, by the curvature of the channels and by the angle of incidence of the longitudinal channel axes.

摘要翻译： 超音速冲击波压缩机扩散器围绕具有中心轴线的径向压缩机形成同心圆环。 圆形通道随着从靠近压缩机周边的内圆周延伸到扩散器的外周的弓形纵向中心线延伸，发散角发散。 冲击波可能发生在靠近扩散器内圆周的通道内，或者可能发生在邻近压缩机周边的无叶扩散空间内，并提供有效的能量转换并降低基本上低于MACH 1的速度，以进一步提高亚音速扩散的效率 下游。 对数螺旋由通道纵轴对向的圆弧近似，以允许回波角动量，而通道的圆形横截面允许回旋涡流能量。 通过使用冲击波来减小漫射器的外周的所需直径，以通过通道的曲率以及纵向通道轴的入射角大大降低在短距离内的气体速度。

公开(公告)号：US4512714A

公开(公告)日：1985-04-23

申请号：US529004

申请日：1983-09-06

申请人： Merle L. Kaesser

发明人： Merle L. Kaesser

IPC分类号： F01D9/02 ,  F01D17/14 ,  F01D17/18

CPC分类号： F01D17/146 ,  F01D9/026

摘要： An improved variable flow turbine having a turbine housing constructed of a curved section and a volute section. The curved section contains an inlet at one end and is connected to the volute secton at the opposite end. Located within the volute section is a turbine rotor having an outlet which is coaxially aligned with the central axis of the volute section. Positioned at the inlet of the curved section is a control valve for regulating the flow of exhaust gases into the housing. Extending inwardly from the control valve is a divider wall which divides the housing into inner and outer passages. The divider wall is constructed such that the cross-sectional flow area of each the passages within the volute section decreases as they approach the turbine rotor. This unique turbine arrangement enables a turbocharger to operate more efficiently over an engine's operating range.

摘要翻译： 一种改进的可变流量涡轮，具有由弯曲部分和蜗壳部分构成的涡轮机壳体。 弯曲部分在一端包含入口，并在相对端连接到蜗壳构造。 位于蜗壳部分内的涡轮转子具有与蜗壳部分的中心轴线同轴对准的出口。 位于弯曲部分的入口处的是用于调节进入壳体的废气流的控制阀。 从控制阀向内延伸的是将壳体分成内部和外部通道的分隔壁。 分隔壁构造成使得蜗壳部分内的每个通道的横截面积面积随着接近涡轮转子而减小。 这种独特的涡轮机布置使得涡轮增压器能够在发动机的工作范围内更有效地操作。