초록 ▼

A solenoid operated control valve for use as an inlet and/or exhaust valve in a pressure modulator has a flat valve element cooperating with a flat valve seat to control the flow of fluid through the valve. At least a portion of the solenoid armature has opposed parallel flat surfaces and is dispose

A solenoid operated control valve for use as an inlet and/or exhaust valve in a pressure modulator has a flat valve element cooperating with a flat valve seat to control the flow of fluid through the valve. At least a portion of the solenoid armature has opposed parallel flat surfaces and is disposed within a gap defined between parallel faces for movement axially within the gap to operate the valve. The flat valve seat is disposed in the plane of one of the parallel faces and one of the parallel faces is a face of the stator. All required settings, more particularly, magnetic reach, the energized gap and excess valve travel to compensate for wear are set automatically by spacers. The spacers give the required settings directly from their own thickness and not through other component dimensions in combination. This has very important implications for production since the direct spacer automatically gives the required dimension, whereas indirect ones can only be chosen by assembly measurement or selective assembly, both of which are expensive.

대표청구항 ▼

A solenoid-operated control valve, said control valve comprising a valve element and a valve seat, each having a flat surface, each said flat surface being co-operable to control a flow of fluid through said valve, wherein at least a portion of a solenoid armature has opposed parallel surfaces and i

A solenoid-operated control valve, said control valve comprising a valve element and a valve seat, each having a flat surface, each said flat surface being co-operable to control a flow of fluid through said valve, wherein at least a portion of a solenoid armature has opposed parallel surfaces and is disposed within a gap defined between parallel faces for movement axially within said gap to operate said valve, wherein said flat surface of said valve seat is disposed in a plane of one of said parallel faces, and wherein one of said parallel faces is a face of a solenoid stator, a first spacing means whose thickness determines a magnetic reach of said armature, a second spacing means disposed in said gap to intervene between said armature and said face of said solenoid stator and whose thickness determines an energized gap between said armature and said stator when said solenoid is energized, and a third spacing means whose thickness defines a distance between said valve element face and one of said armature surfaces to produce excess travel of said valve element relative to said armature travel, whereby wear or erosion of one of said valve element and said valve seat is compensated.