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41 records (took 0.029 seconds)

    1.
    发明专利
    未知

    公开(公告)号：FR2383707A1

    公开(公告)日：1978-10-13

    申请号：FR7807359

    申请日：1978-03-14

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： SASAOKA RYOSUKE ,  ISHINO YASUO ,  MAEKAWA KAORU

    IPC: B03C3/12 ,  F24F7/00 ,  H01T20/02

    Abstract: An electronic air cleaner is disclosed in which the corona discharge wire and the counterelectrode are positioned outside the flowpath of dust-laden air. Diverging electric force lines are discharged from the discharge wire electrode, which is nearer the flow path than the counterelectrode, when a high voltage is applied and ions are directed into the passing airflow path in a reacting area or zone. Dust contained in the air flow path is electrically charged by the ions and collected on a filter, which may also be electrically charged, positioned downstream from the reacting zone. In the device the discharge wire is not directly exposed to the dust-laden air, the electrically charged particles being collected on a separate, easily cleaned filter. The design of the electronic air cleaner requires less maintenance, easier cleaning and a longer period of operational quality.

    ELECRRIC BLOWER ASSEMBLY
    2.
    发明专利
    ELECRRIC BLOWER ASSEMBLY 未知

    公开(公告)号：AU1039276A

    公开(公告)日：1977-07-28

    申请号：AU1039276

    申请日：1976-01-19

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： NUMATA SHIGEAKI ,  SASAOKA RYOSUKE

    IPC: F04D25/08 ,  F04D29/44 ,  F04D1/04 ,  F04D1/06 ,  F04D7/00

    Abstract: Electric blower assembly wherein air expelled by centrifugal force from impellers passes through volute chambers disposed peripherally with respect to said impellers and each defining a space which is increasingly larger as the distance from the impellers increases, whereby smooth air flow is produced in the volute chambers since the speed of air flow therethrough is lessened and pressure therein becomes static pressure. From the volute chambers air passes along inclined channels and then around a drive motor, whereby the drive motor is cooled. In entering at least part of each volute chamber air from the impellers comes into contact with a volute chamber wall extension which becomes gradually lower in a direction opposing that of impeller rotation whereby noise due to contact of a volute chamber wall by all portions of the air from the impeller does not occur simultaneously and a quieter blower assembly is provided.

    3.
    发明专利
    未知

    公开(公告)号：DE2810735A1

    公开(公告)日：1978-09-28

    申请号：DE2810735

    申请日：1978-03-13

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： SASAOKA RYOSUKE ,  ISHINO YASUO ,  MAEKAWA KAORU

    IPC: B03C3/12 ,  B03C3/38

    Abstract: An electronic air cleaner is disclosed in which the corona discharge wire and the counterelectrode are positioned outside the flowpath of dust-laden air. Diverging electric force lines are discharged from the discharge wire electrode, which is nearer the flow path than the counterelectrode, when a high voltage is applied and ions are directed into the passing airflow path in a reacting area or zone. Dust contained in the air flow path is electrically charged by the ions and collected on a filter, which may also be electrically charged, positioned downstream from the reacting zone. In the device the discharge wire is not directly exposed to the dust-laden air, the electrically charged particles being collected on a separate, easily cleaned filter. The design of the electronic air cleaner requires less maintenance, easier cleaning and a longer period of operational quality.

    ELECTRIC BLOWER ASSEMBLY
    4.
    发明专利
    ELECTRIC BLOWER ASSEMBLY 未知

    公开(公告)号：CA1062672A

    公开(公告)日：1979-09-18

    申请号：CA243075

    申请日：1976-01-07

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： NUMATA SHIGEAKI ,  SASAOKA RYOSUKE

    IPC: F04D25/08 ,  F04D29/44 ,  F04D29/32

    Abstract: Electric blower assembly wherein air expelled by centrifugal forces from impellers passes through volute chamber disposed peripherally with respect to said impellers and each defining a space which is increasingly larger as the distance from the impellers increases whereby smooth air flow is produced in the volute chambers since the speed of air flow therethrough is lessened and pressure therein becomes static pressure. From the volute chambers air passes along inclined channels and then around a drive motor, whereby the drive motor is cooled. In entering at least part of each volute chamber air from the impellers comes into contact with a volute chamber wall extension which becomes gradually lower in a direction opposing that of impeller rotation whereby noise due to contact of a volute chamber wall by all portions of the air from the impeller dies not occur simultaneously and a quieter blower assembly is provided.

    5.
    发明专利
    未知

    公开(公告)号：FR2300239A1

    公开(公告)日：1976-09-03

    申请号：FR7602936

    申请日：1976-02-03

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： NUMATA SHIGEAKI ,  SASAOKA RYOSUKE

    IPC: F04D25/08 ,  F04D29/44 ,  F04D17/08 ,  F04D25/02

    Abstract: Electric blower assembly wherein air expelled by centrifugal force from impellers passes through volute chambers disposed peripherally with respect to said impellers and each defining a space which is increasingly larger as the distance from the impellers increases, whereby smooth air flow is produced in the volute chambers since the speed of air flow therethrough is lessened and pressure therein becomes static pressure. From the volute chambers air passes along inclined channels and then around a drive motor, whereby the drive motor is cooled. In entering at least part of each volute chamber air from the impellers comes into contact with a volute chamber wall extension which becomes gradually lower in a direction opposing that of impeller rotation whereby noise due to contact of a volute chamber wall by all portions of the air from the impeller does not occur simultaneously and a quieter blower assembly is provided.

    6.
    发明专利
    未知

    公开(公告)号：DE2601631A1

    公开(公告)日：1976-08-05

    申请号：DE2601631

    申请日：1976-01-17

    Applicant: MATSUSHITA ELECTRIC IND CO LTD

    Inventor： NUMATA SHIGEAKI ,  SASAOKA RYOSUKE

    IPC: F04D25/08 ,  F04D29/44 ,  A47L9/00

    Abstract: Electric blower assembly wherein air expelled by centrifugal force from impellers passes through volute chambers disposed peripherally with respect to said impellers and each defining a space which is increasingly larger as the distance from the impellers increases, whereby smooth air flow is produced in the volute chambers since the speed of air flow therethrough is lessened and pressure therein becomes static pressure. From the volute chambers air passes along inclined channels and then around a drive motor, whereby the drive motor is cooled. In entering at least part of each volute chamber air from the impellers comes into contact with a volute chamber wall extension which becomes gradually lower in a direction opposing that of impeller rotation whereby noise due to contact of a volute chamber wall by all portions of the air from the impeller does not occur simultaneously and a quieter blower assembly is provided.

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