F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
137/38
F16K 31/06 (2006.01) B60T 8/36 (2006.01) F01L 9/02 (2006.01) F01L 9/04 (2006.01)
Patent
CA 1314784
247999FF/27GLB0789 88P8135 HIGH PRESSURE, FAST RESPONSE, PRESSURE BALANCED, SOLENOID CONTROL VALVE ABSTRACT A high pressure, fast response, pressure balanced reversible flow, solenoid control valve for use in such automotive applications as electronic valve timing for internal combustion engines and adaptive braking systems. A pressure balanced bearing (44) is connected to a moveable valve member (28) forming a valve cavity (62) therebetween which is at a first pressure. The moveable valve member is also connected to an armature means (50) on the other side of the pressure balanced bearing in an armature cavity (60). The pressure on the opposite side of the valve member and in the armature cavity is at a second pressure. Thus, the moveable valve member is maintained in a pressure balanced condition and the solenoid then operates against any spring forces, inertia and the viscous effects of the fluid and not the pressure of the fluid. As the solenoid (58) is energized, the armature moves the pressure balance bearing and the valve member to open the valve allowing fluid to flow from a valve inlet to the valve outlet. The control valve may be used in control systems where the fluid flow can be reversible.
607230
Borden Ladner Gervais Llp
Siemens-Bendix Automotive Electronics L.p.
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