Gas valve unit
View Patent ↗A gas valve unit for setting a gas volumetric flow supplied to a gas burner of a gas appliance, in particular a gas cooking appliance includes a plurality of on/off valves which can be actuated mechanically by moving at least one body relative to the on/off valves. Each one of the on/off valves has an opening and a movable blocking body, which rests on a valve seat when the on/off valve is closed to thereby close off the opening.
1. A gas valve unit for setting a gas volumetric flow supplied to a gas burner of a gas appliance, said gas valve unit comprising a plurality of on/off valves configured for actuation mechanically by moving at least one body relative to the on/off valves,
wherein each one of the on/off valves has an opening and a movable blocking body, which rests on a valve seat when the on/off valve is closed to thereby close off the opening, and
each one of the on/off valves has a closing spring which presses the blocking body onto the valve seat when the on/off valve is closed, and an opening spring which acts in opposition to the closing spring.
2. The gas valve unit of claim 1 for setting the gas volumetric flow supplied to a gas burner of a gas cooking appliance.
3. The gas valve unit of claim 1 , wherein each one of the on/off valves has an activation region configured to enable actuation of the on/off valve by the at least one body.
4. The gas valve unit of claim 3 , wherein said body being configured as a carrier configured to raise the blocking body from the valve seat in opposition to a force of the closing spring by applying a force upon the activation region to open the on/off valve.
5. The gas valve unit of claim 1 , wherein the at least one body and the on/off valves are configured to open none of the on/off valves, or just one of the on/off valves, or just two of the on/off valves as a function of a position of the body.
6. The gas valve unit of claim 1 , wherein the openings of the on/off valves have different diameters.
7. The gas valve unit of claim 1 , wherein the on/off valves are disposed in a line to thereby define a first on/off valve and further on/off valve following the first on/off valve, wherein the openings of the further on/off valve have an opening cross section that increases along the line.
8. The gas valve unit of claim 1 , further comprising a common component constructed to form the valve seats of the on/off valves.
9. The gas valve unit of claim 8 , wherein the common component is a valve sealing plate.
10. The gas valve unit of claim 1 , wherein the blocking bodies of the on/off valves are disposed on a circular path around an axis of the gas valve unit, said blocking bodies being moveable in parallel relationship to said axis.
11. The gas valve unit of claim 10 , further comprising a switching shaft to define the axis.
12. The gas valve unit of claim 1 , wherein the at least one body and the on/off valves are configured to
open none of the on/off valves in a first position of the at least one body,
open only one of the on/off valves in a second position of the at least one body, and
open two and only two of the on/off valves in a third position of the at least one body.
13. A gas valve unit for setting a gas volumetric flow supplied to a gas burner of a gas appliance, said gas valve unit comprising a plurality of on/off valves configured for actuation mechanically by moving at least one body relative to the on/off valves,
wherein the on/off valves are disposed in a line, said at least one body being disposed above the on/off valves as a function of an angle of a rotatable component,
said body comprising two of said body to define a first body and a second body, said first body being disposed above a first one of the on/off valves of the line when the rotatable component is at a first angle, and
the second body remains above the first one of the on/off valves starting from a second angle, which is greater than the first angle, and the first body is moved above the on/off valves following the first on/off valve as a function of an increasing angle of the rotatable component.
14. The gas valve unit of claim 13 , wherein the second body is configured to interact with the first on/off valve to supply a base load of the gas volumetric flow, and the first body is configured to interact with the on/off valves following the first on/off valve to supply a supplementary load of the gas volumetric flow.
15. The gas valve unit of claim 13 , wherein the first body, the second body and the on/off valves are configured to
open none of the on/off valves in a first position of the first body and the second body,
open only one of the on/off valves in a second position of the first body and the second body, and
open two and only two of the on/off valves in a third position of the first body and the second body.
16. A gas fitting, comprising at least one gas valve unit setting a gas volumetric flow supplied to a gas burner of a gas appliance, said gas valve unit comprising a plurality of on/off valves configured for actuation mechanically by moving at least one body relative to the on/off valves,
wherein each one of the on/off valves has an opening and a movable blocking body, which rests on a valve seat when the on/off valve is closed to thereby close off the opening, and
each one of the on/off valves has a closing spring which presses the blocking body onto the valve seat when the on/off valve is closed, and an opening spring which acts in opposition to the closing spring.
17. The gas fitting of claim 16 , wherein each one of the on/off valves has an activation region configured to enable actuation of the on/off valve by the at least one body.
18. The gas fitting of claim 17 , wherein said body being configured as a carrier configured to raise the blocking body from the valve seat in opposition to a force of the closing spring by applying a force upon the activation region to open the on/off valve.
19. The gas fitting of claim 16 , wherein the at least one body and the on/off valves are configured to open none of the on/off valves, or just one of the on/off valves, or just two of the on/off valves as a function of a position of the body.
20. The gas fitting of claim 16 , wherein the openings of the on/off valves have different diameters.
21. The gas fitting of claim 16 , wherein the on/off valves are disposed in a line to thereby define a first on/off valve and further on/off valve following the first on/off valve, wherein the openings of the further on/off valve have an opening cross section that increases along the line.
22. The gas fitting of claim 16 , wherein the gas valve unit has a common component constructed to form the valve seats of the on/off valves.
23. The gas fitting of claim 22 , wherein the common component is a valve sealing plate.
24. The gas fitting of claim 16 , wherein the blocking bodies of the on/off valves are disposed on a circular path around an axis of the gas fitting, said blocking bodies being moveable in parallel relationship to said axis.
25. The gas fitting of claim 24 , wherein the gas valve unit has a switching shaft to define the axis.
26. A gas appliance, comprising the gas fitting of claim 16 .
27. The gas appliance of claim 26 , constructed in the form of a gas cooktop.
28. The gas appliance of claim 26 , wherein the at least one body and the on/off valves are configured to
open none of the on/off valves in a first position of the at least one body,
open only one of the on/off valves in a second position of the at least one body, and
open two and only two of the on/off valves in a third position of the at least one body.
29. The gas fitting of claim 16 , wherein the at least one body and the on/off valves are configured to
open none of the on/off valves in a first position of the at least one body,
open only one of the on/off valves in a second position of the at least one body, and
open two and only two of the on/off valves in a third position of the at least one body.
30. A gas fitting, comprising at least one gas valve unit setting a gas volumetric flow supplied to a gas burner of a gas appliance, said gas valve unit comprising a plurality of on/off valves configured for actuation mechanically by moving at least one body relative to the on/off valves,
wherein the on/off valves are disposed in a line, said at least one body being disposed above the on/off valves as a function of an angle of a rotatable component,
said body comprising two of said body to define a first body and a second body, said first body being disposed above a first one of the on/off valves of the line when the rotatable component is at a first angle, and
the second body remains above the first one of the on/off valves starting from a second angle, which is greater than the first angle, and the first body is moved above the on/off valves following the first on/off valve as a function of an increasing angle of the rotatable component.
31. The gas fitting of claim 30 , wherein the second body is configured to interact with the first on/off valve to supply a base load of the gas volumetric flow, and the first body is configured to interact with the on/off valves following the first on/off valve to supply a supplementary load of the gas volumetric flow.
32. The gas fitting of claim 30 , wherein the first body, the second body and the on/off valves are configured to
open none of the on/off valves in a first position of the first body and the second body,
open only one of the on/off valves in a second position of the first body and the second body, and
open two and only two of the on/off valves in a third position of the first body and the second body.