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92 条记录 (耗时 0.017 秒)

    Brushless dc motor with improved starting
    6.
    发明公开
    Brushless dc motor with improved starting 失效
    启动无刷直流电机。

    公开(公告)号：EP0141479A1

    公开(公告)日：1985-05-15

    申请号：EP84300856.6

    申请日：1984-02-10

    申请人： ROTRON INCORPORATED

    发明人： Reffelt, James

    IPC分类号： H02K29/08

    CPC分类号： H02K29/08

    摘要： A brushless DC motor of the kind that includes a relatively large rotor permanent magnet (14) magnetized radially in segments around its circumference to provide alternate segments oppositely magnetized has a stator (12) magnetic structure with two dissimilar pole pieces (46,47) in flux conducting relation to a pair of windings. A first of the pole pieces (46) presents a face to the outer surface of the annular magnet across an air gap. A second pole piece (47), which may be somewhat further from the outer surface of the annular magnet (14), at the opposite end of the windings, presents only a norrow edge surface (62) facing generally in the direction of the magnet. The modified pole piece (80) is L-shaped or U-shaped, having one or two legs (82, 83) respectively, projecting from the coil support structure generally circumferentially with respect to the magnet. The legs (82, 83) taper towards their ends more remote from the coil (41) support structure and form broader upper and lower surfaces more nearly perpendicular the axis of magnet rotation than the narrow edge surface or surfaces facing the magnet across the air gap.

    INERTIA SWITCH DEVICE
    7.
    发明授权
    INERTIA SWITCH DEVICE 失效
    INERTIA开关装置

    公开(公告)号：EP0038328B1

    公开(公告)日：1985-01-23

    申请号：EP80901215.6

    申请日：1980-07-10

    申请人： FIRST INERTIA SWITCH LIMITED

    发明人： JACKMAN, Peter Ronald ,  CRICK,David William

    IPC分类号： H01H35/14

    CPC分类号： H01H35/143

    摘要： The inertia switch device (1) comprises an inertia mass (6) which is movable from a rest position when the device is subjected to an applied acceleration or deceleration in a horizontal plane, a first electrical contact (5) movable between a first stable position in which it engages a second electrical contact (3) and a second stable position in which it no longer engages the second electrical contact, and support means (4) having a bifurcated portion (24) for carrying a bifurcated portion of the first electrical contact (5). An operating means (27) is struck by the inertia mass (6), when the applied acceleration or deceleration exceeds a threshold value and moves the first electrical contact (5) from the first to the second stable position. The operating means (27) has a first limb (31) which is struck by the inertia mass and a second limb (28) with a bifurcated portion which is pivotally mounted on the support means. A resilient biassing means (34) lies within the bifurcated portions and connects the first electrical contact (5) and the second limb (28) so as to bias the first electrical contact (5) towards the first or second stable position. A resetting means has an operating member (35) movable to operate the resilient biassing means (34) and thereby return the first electrical contact (5) to its original stable position.

    A METHOD OF EXTRACTING GAS FROM LIQUID
    9.
    发明公开
    A METHOD OF EXTRACTING GAS FROM LIQUID 失效
    脱气液体。

    公开(公告)号：EP0111488A1

    公开(公告)日：1984-06-27

    申请号：EP83900428.0

    申请日：1983-01-17

    申请人： THE BRITISH HYDROMECHANICS RESEARCH ASSOCIATION

    发明人： MILLER, Donald Stuart

    IPC分类号： E21B43 ,  B01D19

    CPC分类号： B01D19/0005 ,  B01D19/0047

    摘要： Procédé d'extraction de gaz contenu dans un liquide, utilisant des désorbeurs de gaz à partir d'un liquide (1, 2, 17), grâce auquel procédé un gaz non désiré est extrait d'un liquide après dépressurisation de ce liquide envoyé sous pression aux désorbeurs au travers de lignes d'alimentation (3, 4). Les désorbeurs de gaz sont disposés de préférence de manière à exécuter un procédé d'extraction en deux étapes, bien qu'il soit possible d'envisager un procédé à une étape ou à étapes multiples. Dans un premier désorbeur (1) le gaz non désiré est extrait du liquide et ce liquide possédant une teneur réduite en gaz non désiré est envoyé à un deuxième désorbeur (2) pour une extraction ultérieure du gaz non désiré. Avant la dépressurisation dans le désorbeur (1) un gaz supplémentaire est dissous dans le liquide sous pression traversant la chambre (23) de sorte qu'après dépressurisation dans le désorbeur (1) le gaz supplémentaire dissous est désorbé du liquide, et en même temps le gaz non désiré est également extrait du liquide pour être remplacé par le gaz supplémentaire. Le liquide avec une teneur réduite en gaz non désiré est ensuite envoyé sous pression vers le deuxième désorbeur (2) au travers de la chambre (15) et est alimenté en gaz supplémentaire, et le procédé d'extraction ultérieure de gaz non désiré du liquide dans l'absorbeur (2) est répété. Le procédé ci-décrit présente les avantages d'une extraction plus efficace du gaz non désiré et d'une réduction de la consommation excessive du gaz supplémentaire.

    CONTROLLED FIREPLACES FOR CONCURRENTLY VARYING COMBUSTION AIR AND CONVECTED AIR
    10.
    发明授权
    CONTROLLED FIREPLACES FOR CONCURRENTLY VARYING COMBUSTION AIR AND CONVECTED AIR 失效
    控制火焰燃烧空气和对流空气

    公开(公告)号：EP0057188B1

    公开(公告)日：1984-04-25

    申请号：EP81901137.0

    申请日：1981-05-01

    申请人： O'GORMAN, Michael Christopher

    发明人： O'GORMAN, Michael Christopher

    IPC分类号： F24B7/02

    CPC分类号： F24B1/1885

    摘要： Convected air from the room to be heated enters two first air spaces (10) through two front inlets (12) and circulates through passageways (13) between inner and outer casings forming the fireplace and re-enters the room through front air outlets (14). Cold fresh air from outside the room enters a second air space (14), between the two first air spaces (10), and can be fed into the room through a control vent (16) for promoting combustion within the fire and/or can be fed into the first air spaces (10) so as to supplement the convected air flowing through the passageways (11).