| 摘要 |
PURPOSE:To control the titled device so as to follow changes ranging over both ranges of the positive pressure and negative pressure of intake pressure introduced, by controlling displacement in both directions of a diaphragm by arranging spring portion materials to both sides so as to hold the diaphragm between the portion materials. CONSTITUTION:An angle lead device 1 is provided with an angle lead device body 2 and an angle lead control portion, a diaphragm device 3. In the angle lead device body 2, a contact of an interrupting device 6 is interrupted by the revolution of a cam shaft 4 while interrupting time, ignition timing, is controlled by the rotary displacement of a rotary portion material 5. A diaphragm 7 is mounted to the inside of the angle lead control portion 3 to partition the control portion 3 into two chambers A and B, and springs 8, 9 are each disposed into these chambers. The diaphragm 7 displaces either of the springs 8, 9 in the compression direction, thus controlling this device to positive pressure and negative pressure. |
