Gas oven

Patent metadata

Field	Value
Publication number	US-10203117-B2
Application number	US-201314135836-A
Country	US
Kind code	B2
Filing date	Dec 20, 2013
Priority date	Dec 21, 2012
Publication date	Feb 12, 2019
Grant date	Feb 12, 2019

Abstract

A gas oven having a gas supplying passage to supply gas to a burner is provided. The gas oven includes an ON/OFF valve to open/close the gas supplying passage, and a flow rate modulating valve connected to the ON/OFF valve in series so as to change the cross-sectional area of a passage, thereby supplying a proper amount of gas to a cooking cavity in response to the change of a cooking area. When a cooking cavity is divided into individual cooking cavities while a divider is mounted, the flow rate modulating valve is open/closed at a smaller opening degree than the maximum operating degree, and thus may be able to prevent a cooking substance from being carbonized in the individual cooking cavities.

First claim

What is claimed is:

1. A gas oven, comprising:
a body;
a cooking space formed inside the body;
an insulated divider attachable to or detachable from the body and configured to divide the cooking space into a first individual cooking space at an upper portion of the body that is insulated from and a second individual cooking space at a lower portion of the body;
a first burner provided at the first individual cooking space;
a second burner provided at the second individual cooking space;
a main gas supply passage configured to supply gas from an outside gas supply source to the first burner and the second burner therethrough;
a first passage and a second passage diverged from the main gas supply passage to be connected to the first burner and to the second burner, respectively;
an ON/OFF valve provided at the main gas supply passage to control supply of the gas supplied from the outside gas supply source;
a first flow rate modulating valve provided at the first passage and configured to control supply of gas flowing through the first passage;
a second flow rate modulating valve provided at the second passage and configured to control supply of gas flowing through the second passage;
a main air discharging passage provided at the first individual cooking space and configured to discharge waste gas, generated from the first burner, from the first individual cooking space to outside of the gas oven; and
an auxiliary air discharging passage provided at the second individual cooking space, connected to the main air discharging passage, and configured to discharge waste gas, generated from the second burner, from the second individual cooking space to the outside through the main air discharging passage when the insulated divider is attached to the body.

2. The gas oven of claim 1 , wherein:
each of the ON/Off valve, the first flow rate modulating valve, and the second flow rate modulating valve is a solenoid valve.

3. The gas oven of claim 1 , wherein:
during ignition of the first burner or the second burner, the first flow rate modulating valve or the second flow rate modulating valve is open at smaller than a maximum opening to prevent an explosive ignition.

4. The gas oven of claim 1 , wherein:
after a temperature measured at the first individual cooking space or the second individual cooking space exceeds a predetermined temperature, an opening of the first flow rate modulating valve or the second flow rate modulating valve is gradually shut off.

5. The gas oven of claim 1 , wherein each of the first flow rate modulating valve and the second flow rate modulating valve comprises:
a coil wound in a form of a cylinder and configured to generate a magnetic field when applied with a current;
a plunger configured to move downward by the magnetic field;
a valve body configured to move downward while being pressed by the plunger to adjust an opening degree of a connecting hole that connects an inlet to an outlet according to an amount of movement thereof;
a restoring spring configured to elastically support the valve body to restore a position of the valve body when the current applied to the coil is removed; and
an adjustment unit configured to adjust a change of the opening degree according to a moving distance of the plunger by adjusting an initial position of the plunger.

6. The gas oven of claim 5 , wherein:
the adjustment unit comprises an adjustment bolt, an adjustment guide to which the adjustment bolt is coupled, and a buffer spring provided between the adjustment bolt and the plunger to change the initial position of the plunger according to an amount of the coupling of the adjustment bolt.

7. A gas oven, comprising:
a body;
a cooking space formed inside the body;
a divider attachable to or detachable from the body and to divide the cooking space into a first individual cooking space at an upper portion of the body and a second individual cooking space at a lower portion of the body;
a first burner provided at the first individual cooking space;
a second burner provided at the second individual cooking space;
a supply passage configured to supply gas from an outside gas supply source to the first burner and the second burner therethrough;
a first passage and a second passage diverged from the main gas supply passage to be connected to the first burner and to the second burner, respectively;
an ON/OFF valve provided at the main gas supply passage to control supply of the gas supplied from the outside gas supply source;
a first flow rate modulating valve provided at the first passage and configured to control supply of gas flowing through the first passage;
a second flow rate modulating valve provided at the second passage and configured to control supply of gas flowing through the second passage,
a main air discharging passage provided at the first individual cooking space and configured to discharge waste gas, generated from the first burner, from the first individual cooking space to outside of the gas oven; and
an auxiliary air discharging passage provided at the second individual cooking space, connected to the main air discharging passage, and configured to discharge waste gas, generated from the second burner, from the second individual cooking space to the outside through the main air discharging passage when the divider is attached to the body,
wherein the gas oven has a first mode during which the divider is attached to the body and only the first burner is operated, a second mode during which the divider is attached to the body and only the second burner is operated, a third mode during which the divider is attached to the body and the first burner and the second burner are simultaneously operated, a fourth mode during which the divider is detached from the body and only the first burner is operated, a fifth mode during which the divider is detached from the body and only the second burner is operated, and a sixth mode during which the divider is detached from the body and the first burner and the second burner are simultaneously operated.

8. The gas oven of claim 7 , wherein:
in the fourth mode and the fifth mode, the first flow rate modulating valve or the second flow rate modulating valve is open/closed at a maximum opening, and
in the first mode, the second mode, the third mode, and the sixth mode, the first flow rate modulating valve and the second flow rate modulating valve each are open/closed at an opening smaller than the maximum opening.

9. A gas oven, comprising:
a body;
a cooking space inside the body;
an insulated divider attachable to or detachable from the body and configured to divide and insulate the cooking space into a first individual cooking space at an upper portion of the body and a second individual cooking space at a lower portion of the body;
a first burner provided at the first individual cooking space;
a second burner provided at the second individual cooking space;
a main gas supply passage configured to supply gas from an outside gas supply source to the first burner and the second burner therethrough;
a first passage and a second passage diverged from the main gas supply passage to be connected to the first burner and the second burner, respectively;
a first ON/OFF valve provided at the first passage to control supply of the gas supplied from the main gas supply passage;
a first flow rate modulating valve provided at the first passage and configured to control supply of gas flowing through the first passage;
a second ON/OFF valve provided at the second passage to control supply of the gas supplied from the main gas supply passage;
a second flow rate modulating valve provided at the second passage and configured to control supply of g

Assignees

• Samsung Electronics Co Ltd

Inventors

• Moon Seong Cheol
• Kim Sung Kwang

Classifications

• F23N2235/18

  Groups of two or more valves · CPC title

• F23N2241/08

  Household apparatus · CPC title

• F23N2235/16

  variable flow or proportional valves · CPC title

• F23N2237/02

  two or more burners · CPC title

• F23N5/042

  using electronic means · CPC title