公开(公告)号：US5807481A

公开(公告)日：1998-09-15

申请号：US732806

申请日：1996-10-15

申请人： David H. Hodgkins ,  Dale M. Giva

发明人： David H. Hodgkins ,  Dale M. Giva

IPC分类号： B01D29/05 ,  B01D35/147

CPC分类号： B01D29/055

摘要： A filter assembly includes a base and cover member which together enclose a planar filter element. Each of the base and cover members has a planar face with a central overpressure opening for an overpressure valve, and a radially-extending channel extending from a port on the side of the base or cover member radially inward to the central overpressure opening. The channel is open along the surface of the planar face. According to a first embodiment, a plurality of radially-extending ribs are disposed in even, spaced-apart relation around the planar surface. The ribs define radial fluid flow paths for even distribution of fluid across the planar face, as well as support a surface of the planar filter member. According to one aspect of this embodiment, a central support rib is suspended along the open side of the channel, and is attached at its radially outer end to an outer annular frame, and at its radially inner end to a ring surrounding the central opening. One or more support trusses intersect the central support rib to add rigidity and strength to the rib. According to another aspect, one or more trusses extend substantially perpendicular to the radial channel for support of the filter element along the channel. According to another embodiment of the present invention, a plurality of cylindrical posts extend outwardly from the planar surface to provide fluid flow paths across the planar surface and for support of the filter element. One or more of the posts are disposed along the side edges of the radial channel or a central rib is provided along the channel for support of the filter element along the channel.

摘要翻译： 过滤器组件包括基部和盖部件，它们一起包围平面过滤元件。 每个底座和盖件均具有一个具有用于超压阀的中心过压开口的平面，以及一个径向延伸的通道，其从底座或盖构件一侧的端口径向向内延伸到中心的超压开口。 通道沿平面的表面开放。 根据第一实施例，多个径向延伸的肋围绕平坦表面以均匀间隔的关系设置。 肋限定径向流体流动路径，用于均匀地分布流过平面的流体，以及支撑平面过滤构件的表面。 根据该实施例的一个方面，中心支撑肋沿着通道的敞开侧悬挂，并且在其径向外端附接到外部环形框架，并且在其径向内端附接到围绕中心开口的环。 一个或多个支撑桁架与中央支撑肋相交，以增加肋的刚度和强度。 根据另一方面，一个或多个桁架基本上垂直于径向通道延伸，以沿着通道支撑过滤元件。 根据本发明的另一个实施例，多个圆柱形柱从平面表面向外延伸，以提供穿过平坦表面的流体流动路径并用于支撑过滤元件。 一个或多个柱沿着径向通道的侧边缘设置，或者沿着通道设置中央肋，用于沿着通道支撑过滤元件。