SOLENOID WITH PLASTIC SLEEVE USING A SERIES OF METAL COMPONENTS AS BEARING SURFACES

摘要

A hydraulic housing for a solenoid valve is provided having a polymeric housing body with at least three control volumes intersected by a central bore with at least two of said control volumes being intersected by a radial passage. At least three axially spaced annular metallic bearing members are provided with at least two annular metallic bearing members providing control volume boundaries. The bearing members are permanently affixed within the polymeric body and have concentric inner diameters for receipt of a spool valve. The inner diameters of the bearing members are machined after the bearing members are affixed within the polymeric body.