公开(公告)号：US3771664A

公开(公告)日：1973-11-13

申请号：US3771664D

申请日：1972-07-05

Applicant: DOVER CORP

Inventor： SCHRINK G ,  JARMAN R

IPC: B01D29/23 ,  B01D29/27 ,  B01D35/00

CPC classification number: B01D29/27 ,  B01D29/23 ,  B01D2201/304

Abstract: Filter and seal for use therein. In a filter having a mesh basket and a fabric liner contained therein for functioning as a filter medium, there is provided an elastomeric rim for engaging and holding the free edge of the liner. A filter tank and cover are arranged for holding the basket in operating position and for receiving said elastomeric rim between the tank and cover where it acts both to hold the liner similarly in operating position and also as a seal therebetween. Said seal thus comprises a multipurpose component in that it provides a fluid seal between the inside of the housing and the atmosphere, retains the rim of the fabric filter liner and supports same, seals the filtered liquid from the unfiltered liquid and insures that the fabric liner is centered in the mesh basket.

Abstract translation: 过滤和密封用于其中。 在其中容纳有用于过滤介质的网篮和织物衬里的过滤器中，设置有用于接合和保持衬套的自由边缘的弹性体边缘。 过滤罐和盖布置成用于将篮子保持在操作位置并且用于在罐和盖之间接收所述弹性体边缘，其中它们同样地保持衬垫在操作位置以及作为它们之间的密封。 因此，所述密封件包括多用途部件，因为其在壳体的内部和大气之间提供流体密封，保持织物过滤器衬垫的边缘并且支撑其相同，将过滤的液体从未过滤的液体密封并确保织物衬里 以网格篮为中心。

公开(公告)号：US3847817A

公开(公告)日：1974-11-12

申请号：US31178972

申请日：1972-12-04

Applicant: DOVER CORP

Inventor： JARMAN R

IPC: B01D29/46 ,  B01D29/62 ,  B01D29/66 ,  B01D33/073 ,  B01D33/00

CPC classification number: B01D33/073 ,  B01D33/466 ,  B01D33/50 ,  B01D33/56 ,  B01D33/727 ,  B01D2201/084 ,  B01D2201/285 ,  B01D2201/287

Abstract: A filter apparatus comprises a filter element inside a stationary housing. In one embodiment, an inlet manifold extends helically along the outside of the housing. A director blade within the housing causes the unfiltered liquid from the inlet manifold to strike the filter element tangentially in a direction opposing filter element rotation. The filtered liquid passing through the filter element is withdrawn from the interior of the filter element. A stationary vane or deflector inside the filter element parallels the director blade and inlet manifold and forces some filtered liquid radially outwardly through the filter element, at the point where the inward flow impinges on the filter element, for loosening contaminant from the outside of the filter element. Adjacent this point a gathering blade extends inward from the housing toward the filter element in parallelism with the inlet manifold to intercept the rotational flow and loosened contaminant adjacent the outside of the filter element and direct same radially outwardly into a drain chamber, creating a vortex flow therein. The drain chamber is oriented and contoured to cause vortex flow downwardly to direct contaminant particles to a drain. In another embodiment, the helical inlet manifold is omitted and the filter liquid is merely introduced into the housing externally of the filter element by a suitable conduit. In a further embodiment, the guide vane or deflector inside the filter element is omitted and a backwash liquid supply tube is provided within the filter element opposite the gathering blade and has outlet openings facing the filter element wall for direction of backwash liquid flow outwardly through the filter element to force contaminant particles from the exterior of the filter element.

Abstract translation: 过滤装置包括固定壳体内的过滤元件。 在一个实施例中，入口歧管沿着壳体的外部螺旋地延伸。 壳体内的导向叶片使得来自入口歧管的未过滤液体沿与滤芯旋转相反的方向切向地过滤元件。 通过过滤元件的过滤液体从过滤元件的内部排出。 过滤元件内部的固定叶片或偏转器平行于导向器叶片和入口歧管，并且迫使一些过滤的液体径向向外穿过过滤元件，在向内的流动冲击过滤器元件的位置处，从过滤器的外部松开污染物 元件。 在该点附近，聚集叶片从入口歧管与壳体朝向过滤器元件向内延伸，以拦截邻近过滤器元件外部的旋转流和松动的污染物并将其径向向外引导到排水室中，产生涡流 其中。 排水室定向和成型，以使涡流向下流动，将污染物颗粒引导到排水管。