ISCA HAVING STRUCTURE OF PREVENTING ACCUMULATION OF CARBON

摘要

Purpose: an ISCA (idle speed control actuator) is arranged to prevention carbon, greasy filth or tar, and by coating, a sliding contact face PFA (every Fluoroalkyloxy) of valve is connected to first valve without viscosity and even if carbon or tar, which are connected to valve, smoothly operates a slider without cumulative by being readily removable carbon or tar. Construction: a shell (1) has an entrance (2) and an outlet (3). Entrance and exit has the pipe of a U-shaped, and a slider (4) is set to be rotatable around turning point. Shell is contacted with a deflation line (5) to adjust the rotation one idle port air capacity of supply by slider. Slider has first valve (6), is used to shrink or amplify the cross section of a valve hole (7). PFA is coated over a sliding contact face (8) between the inner walls (1a) of all shells and the surface of valve. Do not have a sticking coating (9) to be formed to prevent carbon, dust, oil or tar from being connected to valve. PFA coatings have 10-15 microns in thickness. Therefore, carbon or other resources are not by having sticking coating to be prevented from adding up.