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公开(公告)号：EP0959249B1
公开(公告)日：2005-08-03
申请号：EP99201451.4
申请日：1999-05-07
CPC分类号： F04C15/0023 , F04C2/3446
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公开(公告)号：EP0959249A2
公开(公告)日：1999-11-24
申请号：EP99201451.4
申请日：1999-05-07
IPC分类号： F04C2/44
CPC分类号： F04C15/0023 , F04C2/3446
摘要： A vane pump (10) including a cylindrical rotor (78) rotatable inside of an oval-shaped rotor chamber (66) defined by a cam ring (46) round the rotor. A thrust plate (42) and a pressure plate (44) on opposite sides of the cam ring cover the rotor chamber (70) and are squeezed together by a pressure force attributable to fluid in a discharge chamber of the vane pump at a discharge pressure thereof. Fluid at the discharge pressure of the pump is ported to an annular first longitudinal balance chamber (116) between the pressure plate (44) and an end (82A) of the rotor facing the pressure plate (44) and to an annular second longitudinal balance chamber (118) between the thrust plate (42) and an opposite end (82B) of the rotor facing the thrust plate. A pressure force on the pressure plate (44) attributable to fluid in the first balance chamber (116) balances a fraction of the pressure force on the pressure plate attributable to fluid in the discharge chamber to reduce flexure of the pressure plate into the rotor chamber. A pressure force on the rotor attributable to fluid in the second balance chamber (118) is equal to the pressure force on the rotor attributable to fluid in the first balance chamber (116) for longitudinal static equilibrium.
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公开(公告)号：EP1441106A1
公开(公告)日：2004-07-28
申请号：EP04075066.3
申请日：2004-01-09
CPC分类号： F01C21/08 , F01C19/005 , F04C2/3446 , F04C2230/602 , F04C2230/91
摘要： A vane pump (10) includes a cylindrical rotor (78) rotatable inside of an oval-shaped rotor chamber (66) of cam ring (46) disposed between a pressed plate (42) and a pressure plate (44). The rotor has opposite sides (82a, 82b) and a peripheral outer surface (80) in which radial vane slots (86) are formed and guide slideable vanes (88). The rotor (78) is coated on its surfaces with a film (150) of abradable coating material which reduces the operating clearance between the rotor (78) and the thrust and pressure plates (42, 44) and cam ring (46) so as to increase the volumetric efficiency of the pump (10).
摘要翻译： 叶片泵（10）包括可旋转地设置在压板（42）和压板（44）之间的凸轮环（46）的椭圆形转子室（66）内部的圆柱形转子（78）。 转子具有相对的侧面（82a，82b）和形成有径向叶片槽（86）的周边外表面（80）和导向的可滑动叶片（88）。 转子（78）在其表面上涂覆有可磨损涂层材料的薄膜（150），其减小了转子（78）与推力压板（42,44）和凸轮环（46）之间的操作间隙，从而 以提高泵（10）的体积效率。
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公开(公告)号：EP0959249A3
公开(公告)日：2000-09-27
申请号：EP99201451.4
申请日：1999-05-07
CPC分类号： F04C15/0023 , F04C2/3446
摘要： A vane pump (10) including a cylindrical rotor (78) rotatable inside of an oval-shaped rotor chamber (66) defined by a cam ring (46) round the rotor. A thrust plate (42) and a pressure plate (44) on opposite sides of the cam ring cover the rotor chamber (70) and are squeezed together by a pressure force attributable to fluid in a discharge chamber of the vane pump at a discharge pressure thereof. Fluid at the discharge pressure of the pump is ported to an annular first longitudinal balance chamber (116) between the pressure plate (44) and an end (82A) of the rotor facing the pressure plate (44) and to an annular second longitudinal balance chamber (118) between the thrust plate (42) and an opposite end (82B) of the rotor facing the thrust plate. A pressure force on the pressure plate (44) attributable to fluid in the first balance chamber (116) balances a fraction of the pressure force on the pressure plate attributable to fluid in the discharge chamber to reduce flexure of the pressure plate into the rotor chamber. A pressure force on the rotor attributable to fluid in the second balance chamber (118) is equal to the pressure force on the rotor attributable to fluid in the first balance chamber (116) for longitudinal static equilibrium.
摘要翻译： 叶片泵（10）包括圆柱形转子（78），所述圆柱形转子（78）在由凸轮环（46）限定的椭圆形转子腔室（66）的内部可转动。 在凸轮环的相对侧上的推力板（42）和压力板（44）覆盖转子室（70）并且通过可归因于叶片泵的排放室中的流体的压力以排放压力挤压在一起 它们。 泵的排放压力下的流体被输送到压力板（44）和转子的面向压力板（44）的端部（82A）之间的环形第一纵向平衡腔室（116）并且通向环形的第二纵向平衡件 在推力板（42）和转子的面对推力板的相对端（82B）之间的室（118）。 由于第一平衡室（116）中的流体而引起的压力板（44）上的压力平衡了归因于排放室中的流体的压力板上的压力的一部分，以减小压力板进入转子室的挠曲 。 由于第二平衡室（118）中的流体而导致的转子上的压力等于由于第一平衡室（116）中的流体而导致的用于纵向静态平衡的转子上的压力。
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公开(公告)号：EP1947350A2
公开(公告)日：2008-07-23
申请号：EP08100416.0
申请日：2008-01-14
IPC分类号： F15B1/26
CPC分类号： F15B1/26 , Y10T137/794 , Y10T137/86212
摘要： A hydraulic fluid reservoir assembly (120) is disclosed. The reservoir assembly (120) includes a reservoir housing (124) defining a fluid chamber (128) and a baffle member (62). The baffle member (62) is disposed within the fluid chamber (128) above the inlet (130) and defines a central opening (68) disposed radially inwardly of the reservoir housing (124). The central opening (68) provides fluid communication between an inlet zone (128b) below the baffle (62) and an upper zone (128a) above the baffle (62). The hydraulic fluid introduced through the inlet (130) is directed to flow circumferentially along a radially outer section of the inlet zone (128b) whereby air entrained in the hydraulic fluid collects in a central portion (88) of the inlet zone (128b) and is communicated to the upper zone (128a) thereby deaerating the fluid. A means for forming a substantially fluid tight seal (70, 90, 94, 96) between the reservoir housing (124) and the baffle member (62) is provided along an outer radial edge of the baffle member (62). A method of manufacture is also disclosed.
摘要翻译： 公开了一种液压流体储存器组件（120）。 储存器组件（120）包括限定流体室（128）和挡板构件（62）的储存器壳体（124）。 挡板构件（62）设置在入口（130）上方的流体室（128）内并且限定设置在储存器壳体（124）的径向内侧的中心开口（68）。 中心开口（68）在挡板（62）下方的入口区域（128b）和挡板（62）上方的上部区域（128a）之间提供流体连通。 通过入口（130）引入的液压流体被引向沿入口区域（128b）的径向外部部分周向流动，由此夹带在液压流体中的空气聚集在入口区域（128b）的中心部分（88）中，并且 被传送到上部区域（128a），从而使流体脱气。 沿着挡板构件（62）的外径向边缘设置用于在储存器壳体（124）和挡板构件（62）之间形成基本上流体密封的密封件（70,90,94,96）的装置。 还公开了一种制造方法。
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