| 摘要 |
PURPOSE:To prevent the adhesion of dusts, etc. onto the periphery of a piston by installing the second protecting cylinder which moved in reciprocation with the piston, closely attached onto the first protecting cylinder inside said cylin der, between the projection part of a temperature sensing body for autochoke and the piston. CONSTITUTION:A piston 6 driven by an inside temperature sensing body is installed, in order to turn a fast idle cam 3 for the interlocking between a chock valve 1 and a throttle valve 2 in accordance with temperature. The first protecting cylinder 24 is intalled at the projection part 5 of a temperature sensing body housing 4, and the second protecting cylinder 25 which moves in slidable ways in close contact with the inside surface of the first protecting cylinder 24 is installed inside the first protecting cylinder 24. The tapered part 28 of the piston 6 is closely attached onto the top edge of the second protecting cylinder 25. Therefore, the adhesion of dusts, etc. onto the peripheral surface of the piston can be prevented. |
