Patents Assigned to Yamaka Hatsudoki Kabushiki Kaisha
  • Overheat preventing system for internal combustion engines
    Patent number: 4459951
    Abstract: A system for preventing overheating of an internal combustion engine comprised of a temperature detector which activates an electronic circuit to intermittently interrupt engine ignition spark to gradually decelerate the engine. The electronic circuit has an oscillator which is activated by the temperature detector whose duty cycle is gradually increased up to a maximum. The oscillator output energizes a gating circuit to turn on a thyristor which connects an ignition charging circuit to ground. Thus interrupting the ignition spark.
    Type: Grant
    Filed: June 18, 1982
    Date of Patent: July 17, 1984
    Assignees: Yamaka Hatsudoki Kabushiki Kaisha, Sanshin Kogyo Kabushiki Kaisita
    Inventors: Motoi Tobinaga, Yutaka Nasuda