Piston actuated cartridge valve
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorEdgar Mendez
Life of this patent
Estimating the term…
Abstract
A piston actuated cartridge valve (PACV) can be formed within a fluid fitting such as a tee or cross member in a fluid piping system. The PACV includes a base mount extending between first and second ends having a stop and a slide positioned therein. The slide is movable between a closed position and a fully open position by an actuation piston and spring working in combination. The slide permits fluid flow therethrough in the open position and restricts fluid flow in the closed position.
Claims18
A piston actuated cartridge valve comprising:
- a base mount extending between first and second ends;
- a stop positioned in a fixed location within a stop bore formed within the base mount proximate the first end;
- a slide positioned within a slide bore formed within the base mount adjacent the stop bore;
- wherein the slide is movable between a closed position and a fully open position;
- and
- wherein the fully open position of the slide is defined by moving the slide toward the stop until contact with the stop;
- wherein the slide incudes:
- a bearing wall slidingly engaged with the slide bore of the base mount;
- a sealing surface formed by a tapered wall extending radially inward from the bearing wall;
- a cylinder extending from the sealing surface to a cylinder tip;
- and
- a plurality of flow channels formed through a cylindrical wall of the cylinder configured to permit fluid to pass into the cylinder and back out of the cylinder when the slide is opened;
- wherein the base mount is insertable into a piston actuated cartridge valve assembly body.
A fluid fitting comprising:
- a plurality of passageways extending radially outward in different directions from a central location;
- wherein at least two of the passageways include connecting ends formed at a distal end thereof to couple with fluid conduit pipes in a fluid system;
- a piston actuated cartridge valve (PACV) positioned extending from the distal end to a proximal end within each of the at least two passageways;
- a piston positioned in another of the passageways of the fitting operable for opening each of the PACVs;
- and
- wherein the PACVs cooperate together within the passageways of the fitting to selectively direct fluid in one of a plurality of directions through the passageways of the fitting.
A valve system comprising:
- a fitting having a plurality of passageways;
- a piston actuated cartridge valve (PACV) positioned in at least two of the passageways;
- and
- an actuation piston having a first end and a second end positioned in one of the passageways operable to control fluid flow through each of the PACVs;
- a slide valve movable between an open and a closed position within the PACV, the slide valve including a cylinder with a plurality of flow channels formed therethrough to permit fluid to into or out of the cylinder when the slide valve is open;
- and
- a stop positioned within the PACV to restrict travel of the slide valve, the stop being stationary and having external flow paths formed on opposing sides to permit fluid to flow past the stop and through the fitting when the slide valve is open.
Dependencies are inferred from the claim text.