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    231.
    发明授权
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    公开(公告)号：US3513975A

    公开(公告)日：1970-05-26

    申请号：US3513975D

    申请日：1969-01-10

    Applicant: BRITISH TITAN PRODUCTS

    Inventor： RUSSELL JOHN EDWARD

    IPC: B01D33/073 ,  B01D33/46 ,  B01D33/38

    CPC classification number: B01D33/073 ,  B01D33/466 ,  B01D33/60 ,  B01D33/72 ,  B01D33/763 ,  B01D33/807 ,  B01D2201/282

    Abstract: Rotary filter is characterised by having a rotatable drum whose surface forms a filtration surface; a tank or container; a tank or container; a rotatable feeding device whose blades are formed with at least four troughs extending parallel with the axis of the drum, and so fastened that it is rotatable in a position above the horizontal axial plane of the drum, in order to feed a liquid or suspension from the feeding device onto the drum surface; and equipment for rotating the drum and the feeding device.

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    236.
    发明授权
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    公开(公告)号：US3193102A

    公开(公告)日：1965-07-06

    申请号：US20247262

    申请日：1962-06-14

    Applicant: LUCAS INDUSTRIES LTD

    Inventor： SIMISTER BOTTOMS HARRY ,  THOMAS CAMPBELL

    IPC: B01D29/11 ,  B01D35/157

    CPC classification number: B01D35/157 ,  B01D29/118 ,  B01D29/606 ,  B01D29/6438 ,  B01D29/902 ,  B01D2201/02 ,  B01D2201/282

    Abstract: 995,142. Filters for liquids. JOSEPH LUCAS (INDUSTRIES) Ltd. June 12, 1962 [June 28, 1961], No. 23362/61. Heading B1D. A filter comprises a truncated conical filtering element 5 having rings 6, 7 lodged in a portion 2a of a cavity through which fuel for a gas-turbine engine flows from an inlet 3 to an outlet 4, and a truncated conical cup 13 attached to a stem 14 which is slidably mounted in a spigot 10 extending from a perforated cup 9, cup 13 being biased in opposition to the flow of fuel by a compression spring 15 and having a cone angle greater than that of element 5. A proportion of the fuel passes through element 5 into a plurality of passages 8 which are connected to servo-mechanism (not shown) whereas the remainder of the fuel flows over cup 13 to outlet 4 and scours the inner surface of element 5. The cone angle of cup 13 is such that with variations of flow velocity in inlet 3 within a given range the cup moves axially to provide corresponding variations of the cross-sectional area of the space between itself and element 5, whereby the flow velocity in said space is substantially constant. When cup 13 undergoes maximum deflection towards outlet 4 the cross-sectional area is substantially uniform throughout the length of said space and equal to that of inlet 3 and outlet 4.

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