Solenoid control valve
AssigneeSaturn Electronics & Engineering, Inc.
InventorsDavid L. Seid, Hamid Najmolhoda
Life of this patent
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Abstract
An engine oil solenoid control valve includes a molded one-piece valve nozzle and coil bobbin member that defines a valve nozzle and a solenoid coil bobbin and also defines an integral check valve receiving receptacle at an exhaust port and first and second valve seats for controlling valve stroke. A ball valve is disposed between the valve seats. A simple cylindrical armature rod can be used together with molded integral recesses that balance hydraulic pressure on the armature to prevent a hydraulic lock condition.
Claims11
A hydraulic fluid solenoid valve, comprising a one-piece valve nozzle and coil bobbin member defining a solenoid coil bobbin region and an integral nozzle region with a supply port, control port and an exhaust port with a check valve-receiving receptacle, a valve disposed in said nozzle region, a check valve disposed in said receptacle, a wire coil on the coil bobbin region for receiving electrical signals to control armature movement, and an armature received in a bore of the coil bobbin region.
A method of making a hydraulic fluid solenoid valve, comprising providing a one-piece valve nozzle and coil bobbin member to include a solenoid coil bobbin region and an integral nozzle region with a supply port, control port and an exhaust port with a check valve-receiving receptacle, disposing a fluid control valve in said nozzle region, disposing a check valve in said receptacle, disposing a wire coil on the coil bobbin region, and disposing an armature in a bore of the coil bobbin region.
Dependencies are inferred from the claim text.