Solenoid operated fluid control valve
AssigneeSaturn Electronics & Engineering, Inc.
InventorsHamid Najmolhoda, David Seid, John T. Kovitz, Brian K. Baker
Life of this patent
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Abstract
Solenoid operated fluid control valve for controlling the pressure of a fluid in a fluid control system comprises a solenoid housing having therein a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and one or more features including an armature damping member, tubular actuator pin support body, flow diverter, coil bobbin support sleeve, and/or internal particle gettering magnet to improve valve operation.
Claims7
Solenoid fluid control valve, comprising a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and wherein the actuator pin includes a tubular sleeve attached thereon and spaced from the actuator pin to form a space around the actuator pin with the space closed off at an end thereof where the sleeve is attached on the actuator pin and wherein the tubular sleeve includes an annular chamfered or radiused exhaust sealing edge at an opposite end of the space to engage a seating surface of an exhaust seat insert disposed downstream of the valve member, said seating surface extending substantially perpendicular to the longitudinal axis of the actuator pin, to close off fluid flow to an exhaust port when the armature is at an end position of the armature stroke where the valve member is unseated a maximum distance from its seat by the actuator pin.
Solenoid fluid control valve, comprising a solenoid coil, an armature movable in response to electrical current applied to the solenoid coil, a valve member for controlling fluid flow to a fluid passage, an actuator pin disposed between the armature and the valve member for moving the valve member in response to armature movement, and wherein the actuator pin includes a tubular sleeve fixedly attached thereon and spaced from the actuator pin to form a space around the actuator pin with the space closed off at an end where the tubular sleeve is attached and with the space open at an opposite end facing an exhaust orifice of an exhaust seat insert disposed downstream of the valve member, said tubular sleeve having an annular chamfered or radiused exhaust sealing edge at the opposite end of the space to engage a seating surface of the exhaust seat insert to close off fluid flow through the exhaust orifice to an exhaust port when the armature is at an end position of the armature stroke where the valve member is unseated a maximum distance from its seat by the actuator pin.
Dependencies are inferred from the claim text.