Abstract:
A pressure control valve assembly (10) includes a linear actuator (12) portion and a hydraulic portion (14). The linear actuator (12) includes an improved plunger (72) that has an enlarged diameter portion (106 OD ) near the secondary plate (80). The linear actuator (12) further includes a plunger-to-primary plate interface that has a double step (130, 132) magnetic configuration, which increases the force developed on the plunger (72).
Abstract:
A solenoid valve (10) includes a plunger (64) that includes a conical plunger tip (78) and an outlet tube (28) that is formed with an outlet passage (29). The outlet passage (29) includes a first frusto-conical portion (84) into which the plunger tip (78) fits. The plunger (64) is movable between a closed configuration wherein the plunger (64) engages the outlet tube (28) to block fluid flow through the outlet passage (29) and an open configuration wherein the plunger (64) is distanced from the outlet tube (28) to permit fluid flow through the outlet passage (29). As the plunger (64) moves, there is only one restriction of flow between the plunger (64) and the outlet tube (28) for each position of the plunger (64). As such, the flow through the valve (10) is linear with respect to the motion of the plunger (64) and the solenoid valve (10) can be used to easily and accurately control the flow rate of fluid therethrough.
Abstract:
A solenoid valve (10) includes a plunger (64) that includes a conical plunger tip (78) and an outlet tube (28) that is formed with an outlet passage (29). The outlet passage (29) includes a first frusto-conical portion (84) into which the plunger tip (78) fits. The plunger (64) is movable between a closed configuration wherein the plunger (64) engages the outlet tube (28) to block fluid flow through the outlet passage (29) and an open configuration wherein the plunger (64) is distanced from the outlet tube (28) to permit fluid flow through the outlet passage (29). As the plunger (64) moves, there is only one restriction of flow between the plunger (64) and the outlet tube (28) for each position of the plunger (64). As such, the flow through the valve (10) is linear with respect to the motion of the plunger (64) and the solenoid valve (10) can be used to easily and accurately control the flow rate of fluid therethrough.
Abstract:
A pressure control valve assembly (10) includes a linear actuator (12) portion and a hydraulic portion (14). The linear actuator (12) includes an improved plunger (72) that has an enlarged diameter portion (106 OD ) near the secondary plate (80). The linear actuator (12) further includes a plunger-to-primary plate interface that has a double step (130, 132) magnetic configuration, which increases the force developed on the plunger (72).
Abstract:
A three-port actuation valve, comprising: a valve housing portion (14) having a supply port opening (16), a control port opening (18) and an exhaust port opening (20) each in selective fluid communication with a central opening of the valve housing portion (14); a housing disk (22) having a stem portion (27) and a disk portion (25), the stem portion (27) being inserted into the central opening of the valve housing portion (14), the stem portion (27) having an exhaust valve opening (35) aligned with the supply port opening (16) and an opening that aligns with the exhaust port opening (35); a poppet (40) for selectively closing the exhaust valve (35) opening, the poppet (40) being slideably received within a central opening of the stem portion (27) for movement between a first position and a second position; and at least one channel (29) disposed in a surface of the disk portion (25), the at least one channel (29) providing fluid communication between a periphery of the disk portion (25) and a central opening of the stem portion (27).
Abstract:
A variable force actuator with a double needle poppet assembly includes a housing (22) in which a first poppet (62) and a second poppet (64) are slidably disposed. The second poppet (64) fits within the first poppet (62), and both poppets (62, 64) move when a nearby coil (121) is energized to establish, in combination, a fluid flow configuration in response to the amount of energy applied to the coil (121).