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    FLAME FAILURE CONTROLS
    3.
    发明专利
    FLAME FAILURE CONTROLS 未知

    公开(公告)号：CA1108723A

    公开(公告)日：1981-09-08

    申请号：CA294795

    申请日：1978-01-12

    Applicant: ELECTRONICS CORP AMERICA

    Inventor： CADE PHILLIP J

    IPC: F23N5/18 ,  F23N5/20 ,  G05D23/27

    Abstract: Burner control apparatus includes control devices for actuating an ignition control means, and a timing circuit for providing an igniton timing sequence of four precise intervals. The timing circuit is actuated in response to a request for burner operation and the control devices are energized in sequence and combination in response to the actuated timing circuit. Time sequential pilot flame and main flame stabilization intervals are provided. If a signal from the flame sensor is received before the end of the overlapping flame stabilization timing intervals, the control device is energized and if flame detection signal is lost a lockout circuit is energized.

    BURNER CONTROL APPARATUS
    4.
    发明专利
    BURNER CONTROL APPARATUS 未知

    公开(公告)号：CA1103332A

    公开(公告)日：1981-06-16

    申请号：CA275604

    申请日：1977-04-05

    Applicant: ELECTRONICS CORP AMERICA

    Inventor： CADE PHILLIP J

    IPC: F23N5/08 ,  F23N5/18 ,  F23N5/20 ,  F23N5/00

    Abstract: A burner control apparatus includes a timing circuit for providing two successive timing intervals of precise duration, one being a preignition timing interval and the other being an ignition timing interval. The timing circuit includes a capacitor the charging rate of which determines one of the timing intervals and the discharge rate of which determines the other timing interval. In response to a call for burner operation a blower is energized to purge the burner of potentially explosive gases during the pre-ignition timing interval. When the pre-ignition interval comes to an end relays are energized to energize a pilot fuel control and an ignition control. If a flame is sensed during the ignition interval a further relay is energized closing the ignition control and switching over from pilot to main fuel control. If no flame is sensed during this interval a lockout actuator shuts down the entire burner and energizes an alarm. If after establishment of normal burner operation the flame goes out,the cycle of two successive timing intervals is repeated.

    FLAME FAILURE CONTROLS
    5.
    发明专利
    FLAME FAILURE CONTROLS 未知

    公开(公告)号：CA1036245A

    公开(公告)日：1978-08-08

    申请号：CA194057

    申请日：1974-03-05

    Applicant: ELECTRONICS CORP AMERICA

    Inventor： CADE PHILLIP J

    IPC: F23N5/08 ,  F23N5/24

    Abstract: The invention has particular utility in connection with combustion control systems that employ lead sulfide (infrared sensitive) photoconductors in conjunction with band pass amplifiers. Flame relays in such systems would occasionally hold in after flame failure due to continued generation by the photoconductor of fluctuating signals. A flame failure transition responsive circuit is connected in series between the photoconductor and the flame relay and responds to an abrupt decrease in the flame signal to insure dropout of the flame relay.

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