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    AN ELECTROMAGNETIC DEVICE FOR CONTROLING THE SUPPLY OF CURRENT TO THE ELECTRIC STARTER MOTOR OF AN INTERNAL COMBUSTION ENGINE
    41.
    发明专利
    AN ELECTROMAGNETIC DEVICE FOR CONTROLING THE SUPPLY OF CURRENT TO THE ELECTRIC STARTER MOTOR OF AN INTERNAL COMBUSTION ENGINE 未知

    公开(公告)号：SI9300314A

    公开(公告)日：1993-12-31

    申请号：SI9300314

    申请日：1993-06-10

    Applicant: MAGNETI MARELLI SPA

    Inventor： FASOLA GIANCARLO ,  ARPINO FABIO ,  CERIZZA GIOVANNI

    IPC: H01H13/02 ,  F02N15/00 ,  H01H1/50 ,  H01H13/12 ,  H01H51/06

    Abstract: The device comprises two fixed contacts (5, 5a), a movable assembly (17; 18, 19, 21, 24) coupled to the central portion of a movable contact (22) the free ends (40) of which can cooperate with the said fixed contacts (5a), and a control electromagnet (3) comprising a solenoid (10) and a movable core (15) displaceable from an initial rest position (Figure 1) to a final position in which it strikes a stop element (8) carrying with it the movable assembly (17) so as to bring the end (40) of the movable contact (22) against the fixed contacts (5a) before reaching the final position. The movable contact (22) can flex resiliently like a beam under the effect of its engagement with the fixed contacts (5a). When the core (15) strikes the stop element (8), the fixed contacts (5, 5a) oscillate about their normal working positions. The movable contact (22) is made in such a way that, as the fixed contacts (5, 5a) start to oscillate its free ends (40) follow the movements of the fixed contacts (5, 5a), its acceleration (a1) in its own mode of vibration being greater than the acceleration (amax) of the fixed contacts (5, 5a) and its amplitude of oscillation (s1) being greater than the amplitude of oscillation (s) of the fixed contacts (5, 5a).

    47.
    发明专利
    未知

    公开(公告)号：ITTO920498D0

    公开(公告)日：1992-06-10

    申请号：ITTO920498

    申请日：1992-06-10

    Applicant: MAGNETI MARELLI SPA

    Inventor： FASOLA GIANCARLO ,  ARPINO FABIO ,  CERIZZA GIOVANNI

    IPC: H01H13/02 ,  F02N15/00 ,  H01H1/50 ,  H01H13/12 ,  H01H51/06

    Abstract: The device comprises two fixed contacts (5, 5a), a movable assembly (17; 18, 19, 21, 24) coupled to the central portion of a movable contact (22) the free ends (40) of which can cooperate with the said fixed contacts (5a), and a control electromagnet (3) comprising a solenoid (10) and a movable core (15) displaceable from an initial rest position (Figure 1) to a final position in which it strikes a stop element (8) carrying with it the movable assembly (17) so as to bring the end (40) of the movable contact (22) against the fixed contacts (5a) before reaching the final position. The movable contact (22) can flex resiliently like a beam under the effect of its engagement with the fixed contacts (5a). When the core (15) strikes the stop element (8), the fixed contacts (5, 5a) oscillate about their normal working positions. The movable contact (22) is made in such a way that, as the fixed contacts (5, 5a) start to oscillate its free ends (40) follow the movements of the fixed contacts (5, 5a), its acceleration (a1) in its own mode of vibration being greater than the acceleration (amax) of the fixed contacts (5, 5a) and its amplitude of oscillation (s1) being greater than the amplitude of oscillation (s) of the fixed contacts (5, 5a).

    48.
    发明专利
    未知

    公开(公告)号：ITTO920249D0

    公开(公告)日：1992-03-24

    申请号：ITTO920249

    申请日：1992-03-24

    Applicant: MAGNETI MARELLI SPA

    Inventor： FASOLA GIANCARLO

    IPC: F02D45/00 ,  F02N11/08 ,  F02N15/06

    Abstract: The system includes a direct-current voltage supply (30), an electric starter motor (2) for rotating a movable pinion (6), and an electromagnetic operating device (3) which, when it receives an excitation current, moves the pinion (6) to couple it for rotation with a rotary member (7) of the internal combustion engine. In operation, an electronic control unit (35, 37-40) cuts off the current supply to the electromagnetic operating device (3) as soon as the speed of rotation of the engine shaft exceeds a predetermined threshold and the acceleration of the shaft is less than or equal to zero.

    50.
    发明专利
    未知

    公开(公告)号：ITTO910485D0

    公开(公告)日：1991-06-25

    申请号：ITTO910485

    申请日：1991-06-25

    Applicant: MAGNETI MARELLI SPA

    Inventor： FASOLA GIANCARLO ,  CERIZZA GIOVANNI

    IPC: F02N15/06

    Abstract: The starter includes a movable pinion (6) and a control electromagnet (3). A transmission between the core (10) of the electromagnet (3) and the pinion (6) includes a rocker lever (8). The lever (8) has a shaped profile so that the initial loadless travel (P) of the core (10) is shorter than would be the case with a substantially straight lever, if other geometrical conditions remain the same.

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