Patent ID: 6123096
Filing Date: 2000-09-26
Classification: C03B,F16K,Y10T

Abstract:
A pneumatic cartridge valve comprising;a valve cylinder,a valve body in said valve cylinder,a valve piston mounted for movement in said valve body and comprising a piston rod which supports an operating piston and first and second sealing heads,said valve body comprising two dividing walls comprising apertures which walls divide said valve cylinder into three chambers, an inlet chamber, which may be connected to a supply of compressed air, an outlet chamber, which may be connected to a consumer of compressed air and an exhaust chamber, which may be connected to exhaust,said sealing heads being adapted on movement of said valve piston to open and close said apertures,said valve cylinder comprising an end face with an inlet passage adapted to be connected to said supply and an outlet passage adapted to be connected to said consumer,said valve comprising means for adjusting the flow of air from said valve to exhaust which means comprises,a control knob mounted axially of said valve body,an exhaust control sleeve mounted for rotation in said valve cylinder and connected to said control knob, said sleeve comprising a circumferential slot which leads from said exhaust chamber to an exhaust passage, rotation of said sleeve adjusting the length of the slot through which air may flow, and hence, the flow of air from said chamber to exhaust.