公开(公告)号：US4951461A

公开(公告)日：1990-08-28

申请号：US325728

申请日：1989-03-20

申请人： Lawrence Butler

发明人： Lawrence Butler

IPC分类号： F02C3/067 ,  F02K3/072

CPC分类号： F02K3/072 ,  F02C3/067 ,  Y02T50/671

摘要： A coupling arrangement for supporting a power turbine in a gas turbine engine. The power turbine section comprises a stator structure, first and second rotors, and first and second bearings. The first and second rotors are coaxially disposed about a longitudinal axis of the stator. An annular gas flowpath is coaxially positioned between the first and second rotors. Annular arrays of turbine blades are coupled to the first and second rotors and extend into the flowpath so that a gas stream flowing through the flowpath reacts with the turbine blades causing the rotors to counterrotate. The first bearings are interposed between the first rotor and the stator structure to rotatably secure the first rotor to the stator structure. The second bearings are interposed between the second rotor and the first rotor to rotatably secure the second rotor to the first rotor. By securing the second rotor to the first rotor both rotors maintain a common axis of rotation when the stator structure undergoes deflection along its longitudinal axis.

摘要翻译： 一种用于支撑燃气涡轮发动机中的动力涡轮机的联接装置。 动力涡轮机部分包括定子结构，第一和第二转子以及第一和第二轴承。 第一和第二转子围绕定子的纵向轴线同轴设置。 环形气体流路同轴地位于第一和第二转子之间。 涡轮机叶片的环形阵列耦合到第一和第二转子并延伸到流动路径中，使得流过流路的气流与涡轮机叶片反应，导致转子反向旋转。 第一轴承插入在第一转子和定子结构之间，以将第一转子可旋转地固定到定子结构。 第二轴承插入在第二转子和第一转子之间，以将第二转子可转动地固定在第一转子上。 通过将第二转子固定到第一转子，当定子结构沿其纵向轴线发生偏转时，两个转子均保持共同的旋转轴线。

公开(公告)号：US4752185A

公开(公告)日：1988-06-21

申请号：US80944

申请日：1987-08-03

申请人： Lawrence Butler ,  Gary C. Wollenweber ,  Thomas G. Wakeman

发明人： Lawrence Butler ,  Gary C. Wollenweber ,  Thomas G. Wakeman

IPC分类号： F02C7/28 ,  F01D11/10 ,  F02C9/18 ,  F04D29/08

CPC分类号： F01D11/10

摘要： A fluid seal arrangement for use in a turbomachine, having first and second adjacent sets of turbine blades arranged for relative rotation about a common machine axis. A main fluid flowpath is established across the blades. Parts of at least one set of blades form a clearance opening which communicates between the main fluid flowpath and an outside region. An annular arm projects over the clearance opening into the outside region to form with an outer periphery of the other set of blades an annular passage communicating with the clearance opening. An annular cavity on the other blades receives a buffer fluid. Jet openings from the cavity direct a pressurized supply of the buffer fluid into the annular passage, to induce a sealing fluid flow from the outside region through the clearance opening and into the main fluid flowpath to prevent leakage of fluid from the main fluid flowpath through the clearance opening.

摘要翻译： 一种用于涡轮机的流体密封装置，具有布置成围绕公共机器轴线相对旋转的第一和第二相邻的涡轮叶片组。 在叶片之间建立主流体流路。 至少一组叶片的部分形成在主流体流路和外部区域之间连通的间隙开口。 环形臂在间隙开口的上方突出到外部区域中，与另一组叶片的外周形成与间隙开口连通的环形通道。 另一个叶片上的环形空腔接收缓冲流体。 来自空腔的喷射开口将缓冲流体的加压供应引导到环形通道中，以引起密封流体从外部区域通过间隙开口流入主流体流动路径，以防止流体从主流体流动路径泄漏通过 清仓开放。