초록 ▼

An example valve described herein includes a bonnet having a bonnet cavity defining a bonnet inner surface, a bonnet outer surface, and a first pressure sensing passageway extending between the bonnet outer surface and the bonnet cavity. A base is coaxially coupled to the bonnet and has a base outer

An example valve described herein includes a bonnet having a bonnet cavity defining a bonnet inner surface, a bonnet outer surface, and a first pressure sensing passageway extending between the bonnet outer surface and the bonnet cavity. A base is coaxially coupled to the bonnet and has a base outer surface, a base cavity that defines a base inner surface, a fluid inlet passageway extending between the base outer surface and the base cavity, a fluid outlet passageway extending between the base outer surface and the base cavity, and a second pressure sensing passageway extending between the base outer surface and the base cavity. A valve element within the base and bonnet cavities controls a fluid flow path through the fluid inlet passageway and the fluid outlet passageway.

대표청구항 ▼

1. A valve comprising: a bonnet having a storage pressure sensing passageway and a storage pressure sensing surface, the storage pressure sensing passageway to fluidly couple a first fluid source to the storage pressure sensing surface;a base coupled to the bonnet, the base defining a fluid flow pas

1. A valve comprising: a bonnet having a storage pressure sensing passageway and a storage pressure sensing surface, the storage pressure sensing passageway to fluidly couple a first fluid source to the storage pressure sensing surface;a base coupled to the bonnet, the base defining a fluid flow passageway between a valve inlet and a valve outlet, the valve inlet to be fluidly coupled to a second fluid source and the valve outlet to be fluidly coupled to a third fluid source;a fluid control assembly interposed within the fluid flow passageway to control fluid flow between the valve inlet and the valve outlet; anda filling pressure sensing passageway to fluidly couple the third fluid source to a filling pressure sensing surface, the filling pressure sensing surface opposing the storage pressure sensing surface, the fluid control assembly operatively coupled to the storage pressure sensing surface and the filling pressure sensing surface such that the fluid control assembly moves between an open position to allow fluid flow between the valve inlet and the valve outlet and a closed position to prevent fluid flow between the valve inlet and the valve outlet based on a pressure differential provided across the storage pressure sensing surface and the filling pressure sensing surface by the first and third fluid sources, respectively. 2. The valve of claim 1, wherein the filling pressure sensing passageway is integrally formed in the base. 3. The valve of claim 1, wherein the fluid control assembly includes a pathway to fluidly couple the filling pressure sensing passageway and the filling pressure sensing surface. 4. The valve of claim 3, wherein the pathway is fluidly isolated from the fluid flow passageway. 5. The valve of claim 3, wherein the fluid control assembly comprises a valve stem defining a valve plug about an outer surface of the valve stem to engage a valve seat of the fluid flow passageway, and wherein an inner surface of the valve stem defines the pathway. 6. The valve of claim 1, wherein the fluid control assembly comprises a biasing element to bias the fluid control assembly to the open position, the fluid control assembly to move to the open position when a sum of a pressure provided by the biasing element and a pressure of the third fluid source imparted to the filling pressure sensing surface exceeds a pressure provided by the first fluid source to the storage pressure sensing surface. 7. The valve of claim 1, wherein the base comprises a cartridge-like body to enable the valve inlet, the valve outlet and the filling pressure sensing passageway to be coupled to a manifold without tubing. 8. The valve of claim 1, wherein the fluid control assembly further comprises a piston disposed within the valve between the storage pressure sensing passageway and the filling pressure sensing passageway, a first side of the piston defining the storage pressure sensing surface and a second side of the piston defining the filling pressure sensing surface. 9. A valve comprising: first means for fluidly coupling a first pressure source to a first side of means for sensing pressure;second means for fluidly coupling a second pressure source to a second side of the means for sensing pressure, the first side being opposite the second side;third means for fluidly coupling a third pressure source to the second pressure source; andmeans for controlling fluid flow through the third means for fluidly coupling, the means for controlling fluid flow operatively coupled to the means for sensing pressure such that the means for sensing pressure causes the means for controlling fluid flow to move to an open position to allow fluid flow between the third pressure source and the second pressure source when a pressure of the second pressure source is greater than a pressure of the first pressure source and to move to a closed position to prevent fluid flow between the third pressure source and the second pressure source when a pressure of the first pressure source is greater than the pressure of the second pressure source. 10. The valve as defined in claim 9, wherein the means for controlling fluid flow further defines at least a portion of the second means for fluidly coupling the second pressure source to the second side of the means for sensing pressure. 11. The valve as defined in claim 9, further comprising means for biasing the means for sensing pressure such that the means for sensing pressure is to cause the means for controlling fluid flow to move to the open position when a sum of a pressure provided to the second side of the means for sensing pressure by the means for biasing and the second pressure source exceeds a pressure provided to the first side of the means for sensing pressure by the first pressure source. 12. A method comprising: fluidly coupling a first fluid source to a storage pressure sensing surface positioned in a bonnet via a storage pressure sensing passageway of the bonnet;coupling the bonnet to a base defining a fluid flow passageway between a valve inlet and a valve outlet, and fluidly coupling the valve inlet to a second fluid source and the valve outlet to a third fluid source;positioning a fluid flow control assembly within the fluid flow passageway to control fluid flow between the valve inlet and the valve outlet;fluidly coupling the third fluid source and a filling pressure sensing surface via a filling pressure sensing passageway, the filling pressure sensing surface to oppose the storage pressure sensing surface; andoperatively coupling the fluid flow control assembly to the storage pressure sensing surface and the filling pressure sensing surface such that the flow control assembly moves between an open position to allow fluid flow between the valve inlet and the valve outlet and a closed position to prevent fluid flow between the valve inlet and the valve outlet based on a pressure differential provided across the storage pressure sensing surface and the filling pressure sensing surface by the first and third fluid sources, respectively. 13. The method of claim 12, further comprising integrally forming the filling pressure sensing passageway with the base. 14. The method of claim 12, further comprising forming a pathway in the fluid control assembly to fluidly couple the filling pressure sensing passageway and the filling pressure sensing surface. 15. The method of claim 14, further comprising fluidly isolating the pathway from the fluid flow passageway. 16. The method of claim 12, wherein the fluid control assembly comprises a biasing element to bias the flow control assembly to the open position, the fluid control assembly to move to the open position when a sum of a pressure provided by the biasing element and a pressure of the third fluid source imparted to the filling pressure sensing surface exceeds a pressure provided by the first fluid source to the storage pressure sensing surface. 17. The method of claim 12, further comprising coupling the valve outlet and the filling pressure sensing passageway via a manifold without tubing. 18. The method of claim 12, further comprising positioning a piston of the fluid control assembly within the valve between the storage pressure sensing passageway and the filling pressure sensing passageway such that a first side of the piston defining the storage pressure sensing surface and a second side of the piston defining the filling pressure sensing surface.