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    • 1. 发明申请
    • A FLOW ASSEMBLY FOR AN AXIAL TURBOMACHINE
    • WO2019102231A1
    • 2019-05-31
    • PCT/GB2018/053426
    • 2018-11-27
    • UNIVERSITY OF LEICESTER
    • RONA, Aldo
    • F04D29/52F04D29/68
    • F04D29/526F04D29/685
    • A flow assembly for an axial turbomachine is disclosed. The flow assembly comprises: an outer shroud; an inner hub; and, at least one blade mounted to one of the shroud and hub and comprising pressure and suction surfaces. The other one of the shroud and hub comprises a wall and the or each blade extends towards the wall such that a clearance gap is provided therebetween. The flow assembly is configured such that, in use, fluid flows through the flow assembly from an upstream side to a downstream side of the flow assembly. The wall comprises a recirculation channel comprising an outlet and an inlet located between the outlet and the downstream side of the flow assembly. The recirculation channel is configured such that when fluid flows through the flow assembly from the upstream side to the downstream side, fluid flow from the pressure surface side of the at least one blade enters the inlet and flows along the recirculation channel to be expelled from the outlet to impede leakage of fluid flow in the clearance gap from the pressure surface side to the suction surface side of the or one of the blades.
    • 7. 发明申请
    • VENTILATION DEVICE AND VEHICLE WITH A VENTILATION DEVICE
    • 风扇装置和带有风扇装置的车辆
    • WO2014082711A3
    • 2014-08-07
    • PCT/EP2013003443
    • 2013-11-15
    • BROSE FAHRZEUGTEILE
    • DREESEN THOMAS
    • F04D29/16F04D29/52F04D29/54
    • F04D29/646F01P5/06F01P2070/50F04D19/002F04D29/164F04D29/325F04D29/326F04D29/522F04D29/526F04D29/545F04D29/547
    • The invention relates to a ventilation device with a holder, particularly a ventilation frame (3, 3', 3") which has a substantially circular continuous opening (4, 4', 4", 4"') for receiving a ventilation wheel (5, 5', 5", 5'", 5"") rotating about the central axis (10) thereof, wherein the opening (4, 4', 4", 4"') is bordered by a edge face (15, 15', 15", 15'", 15"", 15""', 40, 40', 40", 40'", 40"") running substantially cylinder-symmetrically about the central axis (10), and wherein, at the edge face (15, 15', 15", 15"', 15"", 15""', 40, 40', 40", 40"'), in two separate, diametrically opposed peripheral sections (17, 17', 17", 18, 18', 18") the radius is at least partly enlarged in comparison to the cylinder-symmetrical form in the remaining peripheral sections, and/or a circular projection (30, 36, 38) of the edge face (15, 15', 15", 15"', 15"", 15""', 40, 40', 40", 40"', 40""), which projection projects radially inwards, is axially offset away from the space provided for the ventilation wheel (5, 5', 5", 5"', 5""). Because of the corresponding shaping of the edge face (15, 15', 15", 15"', 15"", 15"'", 40, 40', 40", 40"', 40"") of the opening (4, 4', 4", 4'") contact and/or development of noise between the ventilation wheel and the edge of the opening (4, 4', 4", 4"') is also prevented in the ventilation frame (3, 3', 3") in the event of a yawing of a ventilation wheel used when pivoting the ventilation device.
    • 本发明涉及一种通风装置与插座,特别是一个护罩(3,3“ 3‘),其具有通过开口的基本上圆形的(4,4' ,4" ,4’”),用于接收关于所述中心轴线 (10)使风扇叶轮(5,5',5“,5”',5“”)旋转,其中所述开口(4,4',4“,4”')通过围绕所述中心轴线 )周缘表面(15,15 '15 “15' ”,15 “”,15 “”',40,40' ,40”,40“”,40 “”)是有限的,并且其中(在所述边缘表面 15,15”,15 “15" '15 ”“,15 ”“',40,40' ,40”,40" ')在两个分开的,径向相对的外周部分(17,17',17”, 18,18”,18“)至少在其他圆周部段部分膨胀,并与所述圆柱对称形成半径/或边缘表面的径向向内突出的周向突起(30,36,38)(15,15' ,15" ,15“',15”“,15”“',40,40',40”,40“',40”“) Rad(5,5',5“,5”',5“”)所提供的空间偏移。通过边缘表面(15,15',15“,15”',15“',15 ““”,40,40' ,40”,40" ”‘的开口(4,4' ),40’,4”,4““)也用于该风扇装置的枢转期间所使用的风扇叶轮的横摆运动的情况下 避免风扇框架(3,3',3“)中风扇与开口边缘(4,4',4”,4“')之间的接触和/或噪音。
    • 10. 发明申请
    • CARTER DE COMPRESSEUR A CAVITÉS AU CALAGE OPTIMISÉ
    • 压缩机箱包含优化设置的CAVIITY
    • WO2013156725A2
    • 2013-10-24
    • PCT/FR2013/050828
    • 2013-04-15
    • SNECMA
    • OBRECHT, Thierry, Jean-JacquesGHILARDI, CélinePERROT, Vincent
    • F04D27/02
    • F04D29/526F04D19/00F04D29/164F04D29/541F04D29/542F04D29/685F05D2220/3216
    • Compresseur pour turbomachine comprenant un carter, au moins un étage de compresseur constitué d'une roue d'aubes fixes et d'une roue d'aubes mobiles (1) positionnée en aval de ladite roue d'aubes fixes, et des cavités (5) creusées dans l'épaisseur dudit carter et disposées sur une circonférence dudit carter (4) en regard des aubes mobiles (1), lesdites cavités ayant une forme allongée selon une direction principale d'orientation et se refermant respectivement vers l'amont et vers l'aval par une face amont et par une face aval dont les intersections avec le carter forment respectivement une frontière amont (7) et une frontière aval (6), lesdites cavités étant décalées par rapport aux aubes mobiles (1) de façon à déborder vers l'amont de la roue d'aubes mobiles en recouvrant leur extrémité amont, caractérisé en ce que la frontière aval (6) de ces cavités (5) est orientée parallèlement à la corde en tête de l'aube mobile (1).
    • 本发明涉及一种用于涡轮发动机的压缩机,包括:壳体,由具有固定叶片的叶轮形成的至少一个压缩机台和具有位于固定叶片叶轮下游的活动叶片(1)的叶轮和空腔(5) 沿着与所述活动叶片(1)相对的所述壳体(4)的圆周设置的所述壳体的厚度。 沿着主要取向方向延伸并延伸的空腔分别由上游和下游面向上游和下游封闭,并且上游边界(7)和下游边界(6)形成在相同和 套管。 空腔相对于活动叶片(1)偏移,以便在上游部分中与动叶片叶轮重叠,从而覆盖其上游端。 壳体的特征在于,空腔(5)的下游边界(6)平行于动叶片(1)的头部处的弦线定向。