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High Speed Valve

IP.com Disclosure Number: IPCOM000096738D
Original Publication Date: 1963-Oct-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 51K

Publishing Venue

IBM

Related People

Orlando, AW: AUTHOR

Abstract

The electrically operated pneumatic valve is capable of high speed opening and closing. Each of the cross-hatched sections is a solid of revolution. Surface 10 of a moving-coil bobbin provides the valve which permits or prevents the flow of air between tubes 11 and 13 through a chamber 12.

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High Speed Valve

The electrically operated pneumatic valve is capable of high speed opening and closing. Each of the cross-hatched sections is a solid of revolution. Surface 10 of a moving-coil bobbin provides the valve which permits or prevents the flow of air between tubes 11 and 13 through a chamber 12.

Coil 21 having terminals 26 is wound about the bobbin and connects to a current source that controls the operation of the valve. Opposite directions of current cause the bobbin to move in opposite directions. Coil 21 and its bobbin portion are located in a small gap in a magnetic path comprised of permanent magnet 16. This has a smaller diameter pole 17 and a high permeability metallic member 14. The bobbin is supported on pole 17 by sponge-rubber ring 22. This is cemented to both the inner side of the bobbin and the surface of pole 17.

A hole 24 is provided centrally through valve 10 in order that cavity 23 does not trap air that might cause the valve to operate sluggishly. When valve 10 engages the end of tube 11, it is sealed, since the air cannot escape from cavity
23.

Metal seal 18 between pole piece 17 and magnetic path 14 provides a sealed air chamber 19. Such stops air leakage from chamber 12 through the magnetic gap from passing through any opening, if there is any, in magnetic path 14, and provides a smaller volume for wave reaction.

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