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Electro Fluidic Valve

IP.com Disclosure Number: IPCOM000090191D
Original Publication Date: 1969-Mar-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Byrnes, HP: AUTHOR [+2]

Abstract

High-speed electro-fluidic valve 10, drawing A, enables the switching of pressure and vacuum, repeatedly, for such applications as fluidic handlers, electro-fluidic oscillators, electro-fluidic transducers or the like. Valve 10 has housing 12 carrying, in cavity 13, a voice coil or solenoid actuating mechanism including a fixedly mounted voice coil magnet 14 and coils 16. The latter are carried on web 18 which is connected to hollow armature tube 24 that is longitudinally slidable in bearings 20 and 22. Tube 24 seats either at 26 or 28 as in B. Inlet tubes 30 and 32 to cavity 13 lead respectively to pressure and vacuum ports. There is a common outlet port at 34. In operation, with vacuum and pressure both being supplied over tubes 30 and 32, repetitive input pulses at up to 200 hertz are applied to coils 16.

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Electro Fluidic Valve

High-speed electro-fluidic valve 10, drawing A, enables the switching of pressure and vacuum, repeatedly, for such applications as fluidic handlers, electro-fluidic oscillators, electro-fluidic transducers or the like. Valve 10 has housing 12 carrying, in cavity 13, a voice coil or solenoid actuating mechanism including a fixedly mounted voice coil magnet 14 and coils 16. The latter are carried on web 18 which is connected to hollow armature tube 24 that is longitudinally slidable in bearings 20 and 22. Tube 24 seats either at 26 or 28 as in B. Inlet tubes 30 and 32 to cavity 13 lead respectively to pressure and vacuum ports. There is a common outlet port at 34. In operation, with vacuum and pressure both being supplied over tubes 30 and 32, repetitive input pulses at up to 200 hertz are applied to coils 16. Armature tube 24 oscillates between positions shown in A and B with resultant switching of fluidic flows. The small cross-sectional area and small travel of armature tube 24 presents little fluid drag and little electrical, magnetic of mechanical inertia.

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