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US 3,961,748 AGranted
Air distribution regulator apparatus
AssigneeThe Trane Company
InventorJohn C. McNabney
Life of this patent
Estimating the term…
Abstract
Three embodiments of an air distributor apparatus are shown which utilizes a balanced type air flow control valve of cylindrical configuration co-operatively associated with a cylindrical sleeve having circumferentially spaced openings closed by the valve. A diaphragm powered valve actuator is disposed within the sleeve which is installed at the air inlet of an air distributor plenum. Several control schemes are disclosed.
Claims13
Air distribution apparatus comprising:
- an air plenum chamber having air inlet opening for receiving air supplied under pressure and an air outlet communicating with a space;
- means for applying air to said inlet opening;
- valve means for controlling the air passing from said outlet opening;
- a fluid powered actuator means for positioning said valve means in response to a controlled fluid pressure;
- fluid control means for supplying a controlled fluid pressure to said actuator means including:
- a first element having first and second faces fixed in relation to each other at an oblique angle;
- a second element having first and second faces fixed in relation to each other at an oblique angle and disposed respectively in opposed relationships with said first and second faces of said element;
- a first vent passageway having a first port on said first face of one of said first and second elements;
- second vent passageway having a second port on said second face of one of said first and second elements;
- first means for adjusting the relative position of said first element through a first path that reduces or increases the spacing between said first faces of said first and second elements and simultaneously respectively increases or reduces the spacing between said faces of said first and second element in response to a first condition;
- second means for adjusting the relative position of said first and second elements through a second path non-parallel to said first path that reduces or increases the spacing between said first faces of said first and second elements and simultaneously respectively reduces or increases the spacing between said second faces of said first and second element in response to a second condition.
8 more elements
Air distribution apparatus comprising:
- an air plenum chamber having an air inlet opening and an air outlet opening;
- a generally cylindrical sleeve extending axially inward of said inlet opening and having an inner portion disposed inwardly of said inlet opening and an outer portion;
- retainer means for retaining said sleeve in said inlet opening;
- an air conveying duct fastened to supply air to the end of said outer portion of said sleeve;
- means defining at least one first aperture at said inner portion of said sleeve extending radially outwardly communicating the interior of said sleeve with the interior of said plenum chamber;
- closure means at the end of said inner portion for blocking axial air flow;
- a generally cylindrically shaped valve disposed radially inwardly of said sleeve;
- mounting means for mounting said valve for axial movement within said sleeve between a first axial position at least partially outside of said inlet opening and substantially noncoextensive with said first apertures thereby opening said first apertures and a second axial position substantially coextensive with said first apertures thereby closing said first apertures;
- means for freely communicating the axial ends of said valve through said valve to thereby substantially balance the axial fluid forces exerted on said valve;
- a diaphragm disposed radially inwardly of said sleeve and axially adjacent said closure means and having an axially movable portion;
- means connecting said cylindrically shaped valve to said movable portion of said diaphragm whereby said valve may be moved axially by axial movement of said diaphragm;
- means for biasing said valve toward one of said first and second positions;
- means for applying a fluid pressure to one side of said diaphragm for movement of said valve toward the other of said first and second positions against said biasing means including a first pressure passageway having an end opening substantially normal to the flow through said air distribution apparatus and communicating with said one side of said diaphragm;
- means for applying a fluid pressure to the other side of said diaphragm including a second pressure passageway having an end opening substantially parallel to the direction of fluid flow adjacent but upstream of said first apertures;
- and vent means for venting said first pressure passageway intermediate said end opening and said one side of said diaphragm in response to temperature of a space served by said air distribution apparatus.
12 more elements
Dependencies are inferred from the claim text.