Browse Prior Art Database

Flexible Spool Valve

IP.com Disclosure Number: IPCOM000098098D
Original Publication Date: 1960-Feb-01
Included in the Prior Art Database: 2005-Mar-07
Document File: 2 page(s) / 53K

Publishing Venue

IBM

Related People

May, GH: AUTHOR

Abstract

The valve includes a laminated housing of four layers, 1, 2, 3 and 4. A main valve cavity 5 contains a hollow, flanged rubber spool 6, and a pilot valve cavity 7 has a solid, flanged rubber spool 8. The spools 6 and 8 are flexible and are supported by their flanges which are clamped between the laminations 1, 2, 3 and 4.

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Flexible Spool Valve

The valve includes a laminated housing of four layers, 1, 2, 3 and 4. A main valve cavity 5 contains a hollow, flanged rubber spool 6, and a pilot valve cavity 7 has a solid, flanged rubber spool 8. The spools 6 and 8 are flexible and are supported by their flanges which are clamped between the laminations 1, 2, 3 and 4.

As shown, a solenoid drive 9 is not energized and the pilot spool 8 is flexed upwardly permitting fluid under pressure to pass from a source 10 to annular cavity 5 between the two lower flanges of the spool 6. The fluid pressure flexes the spool 6 upwardly permitting fluid from a port 11 to pass to an annular cavity 12 and out to a sump.

When the solenoid drive 9 is energized, the pilot spool 8 is flexed downwardly permitting fluid flow from the cavity between the two lower flanges of the main spool 6 to pass to the sump. Now, fluid from a pressure source 13 causes the spool 6 to flex downwardly permitting the fluid under pressure to pass from an upper annular cavity 14 through the hollow center of the spool 6 out through port
11.

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