Gas valve unit having two gas outlets

Patent metadata

Field	Value
Publication number	US-9822975-B2
Application number	US-201113696817-A
Country	US
Kind code	B2
Filing date	May 10, 2011
Priority date	May 20, 2010
Publication date	Nov 21, 2017
Grant date	Nov 21, 2017

Abstract

A gas valve unit for setting a gas volumetric flow to a twin-circuit gas burner of a gas appliance includes a valve body having a gas inlet and two gas outlets, and a control mechanism for adjusting the gas volumetric flow to at least one of the gas outlets in a multiple-stage manner. The control mechanism has a zero position in which the gas volumetric flow to the gas outlets is interrupted, and a switching position which is adjacent to the zero position and in which the gas volumetric flow is set to a maximum value.

First claim

The invention claimed is:

1. A gas valve unit for setting a gas volumetric flow to a twin-circuit gas burner of a gas appliance, said gas valve unit comprising:
a valve body having a gas inlet, a first gas outlet, and a second gas outlet, the first and second gas outlets for supplying the volumetric flow to the twin-circuit gas burner; and
a control mechanism operated by a singular movement apparatus for adjusting the gas volumetric flow from the gas inlet to both of the first and second gas outlets, the control mechanism adjusting the gas volumetric flow from the gas inlet to at least one of the first and second gas outlets in a multiple-stage manner, said control mechanism having a zero position in which the gas volumetric flow to the first and second gas outlets is interrupted, and a switching position which is adjacent to the zero position and in which the gas volumetric flow to the second gas outlet is set to a maximum value,
wherein the control mechanism for adjusting in the multiple-stage manner the gas volumetric flow from the gas inlet to the at least second gas outlet includes:
at least two second open/close valves;
at least two second throttle points; and
a second throttle section, in which the second throttle points are disposed in series, and a connecting segment arranged between each set of two adjacent second throttle points and connecting one of the second open/close valves in an opened state to the gas inlet.

2. The gas valve unit of claim 1 , constructed for setting the gas volumetric flow to each of the first and second gas outlets supplying the twin-circuit gas burner of the gas cooking appliance.

3. The gas valve unit of claim 1 , wherein the control mechanism is configured to open the gas volumetric flow to the other one of the first and second gas outlets in the switching position.

4. The gas valve unit of claim 1 , wherein the control mechanism is configured to set the gas volumetric flow to both of the first and second gas outlets in a multiple-stage manner and to set the gas volumetric flow to a maximum value in the switching position.

5. The gas valve unit of claim 1 , wherein the control mechanism includes at least two first open/close valves and at least two first throttle points to set the gas volumetric flow supplied to the at least first gas outlet.

6. The gas valve unit of claim 5 , wherein the control mechanism includes one of:
at least three first open/close valves and at least three first throttle points, and
at least four second open/close valves and at least four second throttle points.

7. The gas valve unit of claim 5 , wherein the control mechanism includes at least two magnetically active bodies to control the first and second open/close valves, with a first one of the magnetically active bodies being formed by a ferromagnetic body and a second one of the magnetically active bodies being formed by a permanent magnet.

8. The gas valve unit of claim 7 , wherein the first one of the magnetically active bodies and the second one of the magnetically active bodies are coupled to one another in such a manner as to be movable synchronously relative to the first and second open/close valves.

9. The gas valve unit of claim 7 , wherein at least one of the first open/close valves has a permanent magnet to allow control of the at least one of the first open/close valves as a function of a position of the first one of the magnetically active bodies.

10. The gas valve unit of claim 9 , wherein the first one of the magnetically active bodies is configured to open the at least one of the first open/close valves in at least three switching positions of the control mechanism.

11. The gas valve unit of claim 9 , wherein the first one of the magnetically active bodies opens in the switching position adjacent to the zero position the at least one of the first open/close valves, and the second one of the magnetically active bodies opens one of the second open/close valves.

12. The gas valve unit of claim 7 , wherein in any switching position in which the second one of the magnetically active bodies opens at least one of the second open/close valves, the first one of the magnetically active bodies opens one of the first open/close valves.

13. The gas valve unit of claim 7 , wherein in at least one switching position, in which the second one of the magnetically active bodies opens at least one of the first open/close valves, the first one of the magnetic bodies does not open any of the first and second open/close valves.

14. The gas valve unit of claim 7 , wherein depending on a position of the second one of the magnetically active bodies, the second one of the magnetically active bodies either does not open any one of the first and second open/close valves, or opens just one of the first and second open/close valves, or opens just two of the first and second open/close valves.

15. The gas valve unit of claim 5 , further comprising a first throttle section, in which the first throttle points are disposed in a row, and a connecting segment arranged between each set of two adjacent first throttle points and connecting one of the first open/close valves in an opened state to the gas inlet.

16. The gas valve unit of claim 15 , wherein the throttle points of the first throttle section—when viewed in a gas flow direction in the first throttle section—have an increasing flow cross section.

17. The gas valve unit of claim 1 , wherein the throttle points of the second throttle section—when viewed in a gas flow direction in the second throttle section—have an increasing flow cross section.

18. A gas cooking appliance comprising the gas valve unit and the twin-circuit gas burner of claim 1 , wherein the twin-circuit gas burner includes an inner burner and an outer burner, and wherein the least one of the first and second gas outlets supplies the gas volumetric flow to the outer burner and the other one of the first and second gas outlets supplies the gas volumetric flow to the inner burner.

19. A gas valve unit for setting a gas volumetric flow to a twin-circuit gas burner of a gas appliance, said gas valve unit comprising:
a valve body having a gas inlet and two gas outlets, the two gas outlets for supplying the volumetric flow to the twin-circuit gas burner; and
a control mechanism for adjusting the gas volumetric flow from the gas inlet to at least one of the two gas outlets in a multiple-stage manner, said control mechanism having a zero position in which the gas volumetric flow to the two gas outlets is interrupted, and a switching position which is adjacent to the zero
wherein the control mechanism is configured in at least one of two ways, a first way in which the control mechanism includes at least two first open/close valves and at least two first throttle points to set the gas volumetric flow supplied to the one of the two gas outlets, wherein the at least two first open/close valves are arranged circumferentially about an axis, and a second way in which the control mechanism includes at least two second open/close valves and at least two second throttle points to set a gas volumetric flow supplied to the other one of the two gas outlets, wherein the at least two second open/close valves are arranged circumferentially about the axis.

20. A gas valve unit for setting a gas volumetric flow to a twin-circuit gas burner of a gas appliance, said gas valve unit comprising:
a valve body having a gas inlet and two gas outlets, the two gas outlets for supplying the volumetric flow to the twin-circuit gas burner;

Assignees

• Cadeau Christophe
• Naumann Jörn
• Bsh Hausgeraete Gmbh

Inventors

• Cadeau Christophe
• Naumann Jörn

Classifications

• F23N2241/08

  Household apparatus · CPC title

• F23N2235/18

  Groups of two or more valves · CPC title

• F23N2235/24

  Valve details · CPC title

• F23N2237/02

  two or more burners · CPC title

• F23D2900/14062

  for cooking ranges having multiple flame rings · CPC title