| 摘要 |
PURPOSE:To simplify construction and improve durability, by utilizing the contact of a plunger of an idling control driving mechanism and a throttle valve driving member, for detection of an idle signal, and constituting one of the contact parts of a SUS material while the other of a phosphor bronze material. CONSTITUTION:A plunger 20 in an idling speed control actuator 8 is provided at a face-to-face position to a free lever 5 turning integrally with a throttle valve 3 in a carburetor intake barrel 1. If an accelerator pedal is being depressed, a protrusion 5b' of the lever 5 is detached from the plunger 20, and if the pedal is returned, an opening of the valve 3 is decreased and the protrusion 5b' is contacted with the plunger 20, while an idle detection signal is fed to a control circuit, and idle control by a motor 25 is stated. Said protrusion 5b' and a point end of the plunger 20 are fomed of a SUS material and phosphor bronze material, so that the conductivity and shock resistance of the contact part are improved. |
