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Diesel engine shut-down device

  • US 5,062,400 A
  • Filed: 12/04/1990
  • Issued: 11/05/1991
  • Est. Priority Date: 12/14/1989
  • Status: Expired due to Term
First Claim
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1. A diesel engine shut-down device for stopping a diesel engine having engine shut-down means for cutting at least one of a fuel and an intake air, an actuator linked to actuate the engine shut-down means, and an engine key switch, comprising:

  • key switch detecting means for detecting an ON/OFF state of the key switch and producing an engine stop signal when the key switch is in the OFF state;

    rotation detecting means responsive both to the engine stop signal and a rotation state of the engine so as to produce an actuator drive signal when the engine is rotating;

    actuator drive means responsive to the actuator drive signal for driving the actuator; and

    timer means for stopping the production of the engine stop signal when a predetermined period of time elapses after the key switch is turned off, wherein the actuator is stopped when the predetermined period of time elapses even if the engine is not stopped though the actuator has operated.

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