Regulation valve for a gas cooking appliance adapted for the supply of first and second different types of fuel gas, such as natural gas or liquefied gas. The regulation valve has a valve body with an inlet conduit and an outlet conduit, and a rotatable regulating organ housed in the valve body. The
Regulation valve for a gas cooking appliance adapted for the supply of first and second different types of fuel gas, such as natural gas or liquefied gas. The regulation valve has a valve body with an inlet conduit and an outlet conduit, and a rotatable regulating organ housed in the valve body. The regulating organ has a plurality of inlet holes connected to the inlet conduit which, by means of the rotation of said regulating organ allow a gas flow to be altered, the inlet holes of the regulating organ corresponding to the first type of fuel gas are in a first axial position and the inlet holes corresponding to the second type of fuel gas are in a second axial position.
대표청구항▼
1. A regulation valve for a gas cooking appliance adapted for the supply of natural gas or liquefied gas comprising: a valve body with an inlet conduit and an outlet conduit; anda regulating organ rotatable about an axis and housed in a cavity of the valve body, the cavity having a first gas inlet s
1. A regulation valve for a gas cooking appliance adapted for the supply of natural gas or liquefied gas comprising: a valve body with an inlet conduit and an outlet conduit; anda regulating organ rotatable about an axis and housed in a cavity of the valve body, the cavity having a first gas inlet situated at a first axial position between the inlet conduit and the regulating organ and a second gas inlet located at a second axial position between the inlet conduit and the regulating organ, the second axial position different than the first axial position, the regulating organ including a first plurality of inlet holes corresponding to the liquefied gas disposed about the circumference of the regulating organ at the first axial position that are in fluid communication with the outlet conduit and connectable to the inlet conduit via the first gas inlet which by means of the rotation of the regulating organ allow a flow of the liquefied gas to be altered, the regulating organ including a second plurality of inlet holes corresponding to the natural gas disposed about the circumference of the regulating organ at the second axial position that are in fluid communication with the outlet conduit and connectable to the inlet conduit via the second gas inlet which by means of the rotation of the regulating organ allow a flow of the natural gas to be altered. 2. The regulation valve according to claim 1, wherein the regulating organ comprises an axial inner chamber, the inner chamber connected to the first plurality of inlet holes, the second plurality of inlet holes and to the outlet conduit of the valve body. 3. A regulation valve according to claim 2, wherein the first plurality of inlet holes of the regulating organ are connected to the outlet conduit of the valve body by a conduit that comprises a hole calibrated for the maximum flow of liquefied gas. 4. A regulation valve according to claim 3, wherein the first plurality of inlet holes of the regulating organ are axially disposed further from the outlet conduit of the valve body than the second plurality of inlet holes of the regulating organ. 5. A regulation valve according to claim 4, wherein the hole calibrated for the maximum flow of liquefied gas is disposed in a restrictor disc housed in the inner chamber between the first axial position and the second axial position. 6. A regulation valve according to claim 4, wherein the hole calibrated for the maximum flow of liquefied gas is disposed on the end of a nozzle fixed in the inner chamber of the regulating organ. 7. A regulation valve according to claim 6, wherein the nozzle comprises a first section and a second section narrower than the first section, the first section having a contour substantially equal to a contour of the inner chamber and fixed to the inner chamber, the second section extending toward the outlet conduit at least from the second axial position. 8. A regulation valve according to claim 7, wherein the second section of the nozzle projects out of the regulating organ and extends towards the outlet conduit. 9. A regulation valve according to claim 1, wherein each of the first and second plurality of inlet holes of the regulating organ comprise a first hole corresponding to a maximum flow, a second hole corresponding to a descending intermediate flow, and a third hole corresponding to a minimum flow. 10. A regulation valve according to claim 9, wherein in a first angular position of the regulating organ the first hole of each of the first and second plurality of inlet holes is in alignment with the first and second gas inlets, respectively, in a second angular position of the regulating organ the third hole of each of the first and second plurality of inlet holes is in alignment with the first and second gas inlets, respectively, in angular positions of the regulating organ between the first and second angular positions the second hole of each of the first and second plurality of inlet holes is in alignment with the first and second gas inlets, respectively. 11. A regulation valve according to claim 10, wherein the valve body comprises an inner housing situated between the inlet conduit and the first and second gas inlets of the cavity that houses the regulating organ, the inner housing comprising at least one inlet hole that connects the inlet conduit to the inner housing, and first and second outlet holes that are respectively aligned with the first and second gas inlets of the cavity. 12. A regulation valve according to claim 11, further comprising a flow path selector disposed within the inner housing, the flow path selector moveable within the inner housing between a first flow path selector position and a second flow path selector position, in the first flow path selector position a first flow path is established by the flow path selector that connects the inlet conduit to the first gas inlet of the cavity that houses the regulating organ, in the second flow path selector position a second flow path is established by the flow path selector that connects the inlet conduit to the second gas inlet of the cavity that houses the regulating organ. 13. A regulation valve according to claim 12, wherein the flow path selector comprises a body axially movable in the inner housing, a central portion of the body comprising a plurality of axially spaced-apart circular closure segments, transversal to the body and with a larger diameter than the central portion and which are fitted on their outer diameter to the inner walls of the inner housing, the central portion of the body being capable of being disposed in a first axial position to establish the first flow path and a second axial position to establish the second flow path. 14. A regulation valve according to claim 12, wherein the inner housing comprises a central chamber which connects to the inlet conduit via the inlet hole of the inner housing, the central chamber having at a first end a first outlet connected to the first outlet of the inner housing, the central chamber having at a second end opposite the first end that has a second outlet connected to the second outlet of the inner housing, the flow path selector comprising a body axially movable in the inner housing between a first axial position and a second axial position, a central portion of the body situated within the central chamber and comprising first and second axially spaced-apart circular closure segments transversal to the body, each of the first and second circular closure segments having a larger diameter than the central portion of the body and having a larger diameter than the respective first and second outlets of the central chamber, the first and second circular closure segments being moveable towards and away from the respective first and second central chamber outlets as the body of the flow path selector is moved between the first and second axial positions, in the first axial position the first flow path being established with the first circular closure segment being spaced apart from the first outlet of the central chamber and the second circular closure segment being positioned adjacent the second outlet of the central chamber, in the second axial position the second flow path being established with the second circular closure segment being spaced apart from the second outlet of the central chamber and the first circular closure segment being positioned adjacent the first outlet of the central chamber. 15. A regulation valve according to claim 12, wherein the inner housing comprises a first inlet hole aligned with the first outlet hole corresponding to the liquefied gas, and a second inlet hole aligned with the second outlet hole corresponding to the natural gas, the flow path selector having a body comprising a central body fitted to the walls of the inner housing and axially movable in the inner housing, the central body including a hole that passes through it in a radial direction, in the first flow path selector position the central body being disposed in a first axial position in which the hole of the central body connects the first inlet hole to the first outlet hole of the inner housing, in the second flow path selector position the central body being disposed in a second axial position in which the hole of the central body connects the second inlet hole to the second outlet hole of the inner housing. 16. A regulation valve according to claim 12, wherein the inner housing comprises a central chamber connected to the inlet hole of the inner housing and disposed between first and second lateral chambers, the central chamber having at a first end a first outlet connected to the first lateral chamber and at a second end opposite the first end a second outlet connected to the second lateral chamber, the first lateral chamber connected to the first outlet hole of the inner housing, the second lateral chamber connected to the second outlet hole of the inner housing, the flow path selector comprising a body axially movable in the inner housing between a first axial position and a second axial position, a central portion of the body situated within the central chamber and comprising a circular closure segment transversal to the central body and with a larger diameter than the first and second outlets of the central chamber, the circular closure segment being moveable towards and away from the respective first and second central chamber outlets as the body of the flow path selector is moved between the first and second axial positions, in the first axial position the first flow path being established, in the second axial position the second flow path being established. 17. A regulation valve according to claim 12, wherein the inner housing comprises a first inlet hole aligned with the first outlet hole corresponding to the liquefied gas, and a second inlet hole aligned with the second outlet hole corresponding to the natural gas, the flow path selector having a body comprising a central body fitted to the walls of the inner housing, the central body comprising first and second axially spaced-apart holes that each pass through the central body, the first hole passing through the central body in a first radial direction, the second hole passing through the central body in a second radial direction different than the first radial direction, the central body rotatable between a first angular position and a second angular position, in the first angular position the first hole passing through the central body connects the first inlet hole of the inner housing to the first outlet hole of the inner housing, in the second angular position the second hole passing through the central body connects the second inlet hole of the inner housing to the second outlet hole of the inner housing. 18. A regulation valve according to claim 17, wherein the first and second angular positions are separated by 90 degrees. 19. A regulation valve according to claim 12, wherein the inner housing comprises a single inlet hole, the flow path selector having a body comprising a central body fitted to the walls of the inner housing, there existing a gas chamber in a space between an end of the central body and the single inlet hole, the central body comprising an axial hole connected to the gas chamber, the central body comprising first and second axially spaced-apart holes that each perforate the central body, the first hole passing through the central body in a first radial direction and connected to the axial hole, the second hole passing through the central body in a second radial direction different than the first radial direction and connected to the axial hole, the central body rotatable between a first angular position and a second angular position, in the first angular position the first hole passing through the central body connects the single inlet hole of the inner housing to the first outlet hole of the inner housing, in the second angular position the second hole passing through the central body connects the single inlet hole of the inner housing to the second outlet hole of the inner housing. 20. A regulation valve according to claim 19, wherein the first and second angular positions are separated by 90 degrees.
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이 특허에 인용된 특허 (5)
Parrish, Daniel, Dual fuel gas valve and gas grill.
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