Browse Prior Art Database

Rotating Pneumatic Valve

IP.com Disclosure Number: IPCOM000084571D
Original Publication Date: 1975-Dec-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Janssen, DM: AUTHOR [+3]

Abstract

Pneumatic valve 10, which is depicted in the figure, allows the performance of functions A and B simultaneously or separately from air supplied through supply pressure line 12.

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Rotating Pneumatic Valve

Pneumatic valve 10, which is depicted in the figure, allows the performance of functions A and B simultaneously or separately from air supplied through supply pressure line 12.

As shown, rotor 14 is positioned in spaced relationship with stator 16. Manifold 18 is operably associated with rotor 14. Labyrinth seal 20 is formed by the close spacing of rotor 14 to stator 16 and prevents air from escaping from manifold 18.

In operation, rotor 14 rotates relative to stator 16. Air is supplied to manifold 18 via supply pressure line 12. The output from manifold 18 via rotor air bearing line 22 performs function A. In order to perform function B, piston 28 of rotary valve 10 is displaced in the direction shown by arrow 30 so as to enable air to flow to tube 32. After function B is completed, piston 28 is returned to its original position, thereby preventing flow to tube 32.

The displacement of piston 28 to supply air to line 32 can be obtained by either increasing the pressure of the air in supply pressure line 12 or decreasing the rotational velocity of rotor 14. Likewise, the valve 10 can be closed by either decreasing the pressure of the air in supply pressure line 12 or increasing the rotational velocity of rotor 14.

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