会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • Control logic test circuit
    • 控制逻辑测试电路
    • US3781161A
    • 1973-12-25
    • US3781161D
    • 1972-01-03
    • COMBUSTION ENG
    • SCHUSS J
    • F23N5/24G05B19/048G05B19/07
    • F23N5/242F23N2027/12F23N2027/36G05B19/048G05B19/07G05B2219/24061G05B2219/24062
    • Means are provided for rapidly, completely, and substantially automatically checking the integrity of the logic and related circuitry employed to control and direct the initiation and termination of combustion at elevations of burners in a furnace. The existing burner control logic is utilized in the generation of substantially all of the input signals to remaining logic under test. The driven devices, such as burner guns, fuel valves, etc., are prevented from responding to their command signals supplied by the control logic. These command signals appearing at the outputs from the control logic system are indicative of proper operation of the logic required to produce them. The feedbacks to the control logic from the sensing devices associated with the driven devices are operative to indicate the fact that the disabled driven devices have not responded correctly to input commands during startup and to effect the necessary commands resulting in a shutdown sequence of the control logic. Means are provided for simulating the two or three signals required for proper sequential operation of the logic which fail to appear when the existing logic is operated in a test mode.