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    Fluid filter system and a suction nozzle therefor
    51.
    发明授权
    Fluid filter system and a suction nozzle therefor 失效
    流体过滤系统和吸嘴

    公开(公告)号：US4643828A

    公开(公告)日：1987-02-17

    申请号：US733737

    申请日：1985-05-14

    Applicant: Ytzhak Barzuza

    Inventor： Ytzhak Barzuza

    IPC: B01D29/23 ,  B01D29/38

    CPC classification number: B01D29/23 ,  B01D2201/082 ,  B01D2201/084 ,  B01D2201/287

    Abstract: There is provided a fluid filter system cleanable by suction. The system comprises a filter element fixedly attached to a substantially rigid filter-element support mounted in a filter housing and provided with a plurality of openings, at least one suction nozzle having an inlet opening located in close proximity to the filter element and adapted to move with its inlet opening past the filter element in such a way as to cover, in succession, at least some zones of the filter element while producing a suction flow. The invention further comprises guide means for guiding a fluid stream from the high-pressure raw-fluid space of the filter housing to a low-pressure zone created by the suction nozzle between the inlet opening thereof and that portion of the filter-element support which faces the suction nozzle.

    Abstract translation: 提供了通过抽吸可清洁的流体过滤系统。 该系统包括固定地连接到安装在过滤器壳体中并具有多个开口的基本上刚性的过滤器元件支撑件的过滤元件，至少一个吸嘴，其具有位于过滤元件附近的入口开口，并适于移动 其入口通过过滤元件，以便连续地覆盖过滤元件的至少一些区域，同时产生吸入流。 本发明还包括用于将流体流从过滤器壳体的高压原料流体空间引导到由吸入口在其入口与过滤元件支撑件的该部分之间由吸嘴产生的低压区的引导装置， 面向吸嘴。

    High solids filter
    52.
    发明授权
    High solids filter 失效
    高固体过滤器

    公开(公告)号：US4297209A

    公开(公告)日：1981-10-27

    申请号：US137221

    申请日：1980-04-04

    Applicant: Richard B. DeVisser ,  John W. Rishel ,  Joe A. Kuiper

    Inventor： Richard B. DeVisser ,  John W. Rishel ,  Joe A. Kuiper

    IPC: B01D29/17 ,  B01D29/25 ,  B01D29/37 ,  D21D5/06 ,  B01D29/40

    CPC classification number: B01D29/17 ,  B01D2201/084

    Abstract: A self-cleaning filter assembly for removing solids from an incoming liquid to be filtered. A filter element is fixed substantially coaxially within a housing and spaced from the peripheral wall thereof by an annular solids collection space in turn communicating with a solids outlet. An inlet introduces pressurized liquid to be filtered circumferentially into the solids collection space. A shower assembly rotates coaxially within the filter element and includes an eccentric portion having jets distributed along the length of the filter element and aimed outward close to the inner surface of the filter element. Backwash liquid enters the rotating shower assembly under pressure for continuously pushing solids off the outer surface of the filter element as the shower assembly circumferentially advances in the housing. Filtrate from inside the filter element passes through a filtrate outlet extending from the housing. A solids outlet valve responds to a preselected increase in liquid pressure differential between the inlet and filtrate outlet by opening to increase venting of the annular solids collection space. A filtrate outlet valve may simultaneously close to direct all liquid flow into the housing out the solids outlet.

    Abstract translation: 用于从要过滤的进入液体中去除固体的自清洁过滤器组件。 过滤元件基本上同轴地固定在壳体内并与其周壁隔开环形固体收集空间，然后环形固体收集空间又与固体出口连通。 入口将加压液体引入周向进入固体收集空间。 淋浴组件在过滤元件内同轴旋转并且包括具有沿着过滤元件的长度分布并且向外靠近过滤元件的内表面的喷射的偏心部分。 反冲洗液体在压力下进入旋转淋浴组件，以随着淋浴组件在壳体中周向前进而将固体从过滤元件的外表面上持续推出。 过滤元件内部的滤液通过从壳体延伸的滤液出口。 固体出口阀通过打开来响应入口和滤液出口之间的液压差的预选增加，以增加环形固体收集空间的排放。 滤液出口阀可以同时关闭，以将所有液体流引导到固体出口外部。

    Non-discharge backwash filter system
    57.
    发明授权
    Non-discharge backwash filter system 有权

    公开(公告)号：US11648495B1

    公开(公告)日：2023-05-16

    申请号：US17031652

    申请日：2020-09-24

    Applicant: Crescent GDG Filter Venture, LLC

    Inventor： Steven James Goettl ,  John M. Goettl ,  Ross Anthony DiJulio

    IPC: B01D35/12 ,  C02F1/00 ,  C02F103/42

    CPC classification number: B01D35/12 ,  C02F1/004 ,  C02F1/008 ,  B01D2201/084 ,  B01D2201/165 ,  C02F2001/007 ,  C02F2103/42 ,  C02F2201/005 ,  C02F2209/40 ,  C02F2303/16

    Abstract: A backwash filtration system comprising a backwash discharge port, a sedimentation collection and separation system, and a final filtration chamber. The backwash discharge port is coupled with a pool filter system and is configured to pass backwashed water from the pool filter system to the sedimentation collection and separation system. The sedimentation collection and separation system has a plurality of sedimentation chambers that are vertically stacked and a plurality of baffles configured to reduce the migration of sediment within the sedimentation chambers. A path for water flow passes down sequentially through each of the sedimentation chambers. The final filtration chamber receives the backwashed water from the sedimentation collection and separation system, filters the backwashed water through a final filtration medium, and passes the filtered water to a water return line of the pool filter system or to a pool of water.

    Back-washable filter for liquids
    59.
    发明授权
    Back-washable filter for liquids 有权
    用于液体的可反冲洗过滤器

    公开(公告)号：US06543624B1

    公开(公告)日：2003-04-08

    申请号：US09958895

    申请日：2001-10-15

    Applicant: Heinz Geisbauer

    Inventor： Heinz Geisbauer

    IPC: B01D3350

    CPC classification number: B01D29/15 ,  B01D29/46 ,  B01D29/682 ,  B01D29/688 ,  B01D29/70 ,  B01D29/902 ,  B01D29/908 ,  B01D2201/082 ,  B01D2201/084

    Abstract: The aim of the invention is to improve the backwashing action of a backwashable filter for liquids comprising the following: a filter body which is located in a housing and which separates an incoming flow chamber from an outgoing flow chamber and a backwashing channel which lies adjacent to the filter body, is situated in the outgoing flow chamber and has a backwashing opening that faces towards the filter body, said backwashing channel also communicating with a source of a cleaning medium and said cleaning medium being subjected to pressure in the backwashing channel, and the filter body and the backwashing channel being moveable in relation to each other. To this end, the filter body has links on a side facing towards the backwashing channel which are set apart from each other in the direction of motion. Adjacent links form a separately backwashable segment respectively and when a segment is backwashed, the corresponding links lie sealingly against the backwashing channel with sealing surfaces and expose the backwashing opening. Each sealing surface extends further than the backwashing opening in the direction of motion, so that each link can tightly seal the backwashing opening with its sealing surface.

    Abstract translation: 本发明的目的是改进用于液体的反冲洗过滤器的反冲洗动作，其包括以下内容：过滤器本体，其位于壳体中并且将进入的流动室与来自流出室和反冲洗通道相隔离 过滤器主体位于流出的流动室中并具有朝向过滤器本体的反冲洗开口，所述回洗通道还与清洁介质的源连通，并且所述清洁介质在反冲洗通道中受到压力，并且 过滤器主体和反冲洗通道可相对于彼此移动。 为此，过滤器主体在朝向反冲洗通道的一侧上具有在运动方向上彼此分离的连接。 相邻的链节分别形成分开的反冲洗段，当段被反冲洗时，相应的链节密封地抵靠具有密封表面的反冲洗通道，并暴露回洗开口。 每个密封表面在反冲洗开口的运动方向上延伸得更远，使得每个连接件可以将反冲洗开口与其密封表面紧密地密封。

    Filter apparatus
    60.
    发明授权
    Filter apparatus 失效

    公开(公告)号：US5858231A

    公开(公告)日：1999-01-12

    申请号：US660450

    申请日：1996-06-07

    Applicant: Mordeki Drori

    Inventor： Mordeki Drori

    IPC: B01D25/26 ,  B01D29/15 ,  B01D29/68

    CPC classification number: B01D25/26 ,  B01D29/15 ,  B01D2201/084

    Abstract: A fluid filter comprising a housing defining a fluid inlet and a fluid outlet, a filter element defining an upstream surface communicating with the fluid inlet and a downstream cylindrical surface communicating with the fluid outlet, the filter element comprising a stack of filter disks defining a hollow volume interiorly thereof and a longitudinal axis, and backflushing means for removing filtered out sediment from the filter element comprising an axially displaceable backflushing nozzle assembly disposed within the hollow volume comprising a rotating head coupled to the fluid inlet and having fluid outlet means, arranged to provide a generally radially directed pressurized jet and rotational motion of the rotating head.

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