Capacity control valve

摘要

An object of the present invention is to improve an anti-abrasive property of an operating rod by using a surface hardening heat treatment without a post finishing process and to enhance a response of the operating rod by preventing powders from being attracted to a sliding surface of the operating rod. Another object is to decrease a machining cost of the operating rod. The capacitive control valve is comprised of a solenoid rod portion (2D) communicating with a moveable iron core of the solenoid portion (30), an operating rod (2) connected with the solenoid rod portion (2D), a valve body (3) defined in the operating rod (2) and opening or closing a control fluid passage hole and a fixed core (31) oppositely arranged relative to the moveable core (32), the fixed core (31) retaining a guide hole (31A1), the guide hole (31A1) guiding the operating rod (2) in freely moveable a manner which longitudinally extends through an internal bore (31D) wherein the operating rod (2) is processed at no more than 500 DEG C by a low temperature surface hardening treatment.