| 摘要 |
A time-delay control for applications such as operation of an internal combustion engine, where continued idle operation of the engine is desired after removal of the key from the usual controlling switch. A manually operated switch is connected between the load side of the controlled switch and a timed electrical relay for selectively energizing the relay while the engine is operating. The relay includes contacts in parallel with the manually operated switch and contacts in parallel with the controlled switch. The relay continues engine operation for a re-set time, during which the key may be removed. At the conclusion of this period, the relay is de-energized and the engine is automatically shut down.
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