Safety Valve device in Gas Burning Apparatus

A safety valve device in a gas burning apparatus comprising:

• a valve body having an inlet port and an outlet port and defining a receiving room disposed between the inlet port and the outlet port, and with the receiving room including a first end opening to and in communication with the inlet port and a second end opening to and in communication with the outlet port respectively;
• and
• an adjusting member received by the receiving room, wherein the adjusting member deforms in responsive to temperature from a first shape when in a normal mode into a second shape when in a protection mode and vice versa, wherein the adjusting member is in the normal mode when experiencing a temperature not greater than a set temperature, wherein the adjusting member is in the protection mode when experiencing a temperature greater than the set temperature;
• wherein the adjusting member in transition from the protection mode to the normal mode increases a size of an intermediate passage and results in an increased amount of fluid allowed to flow from the inlet port to the outlet port, wherein the adjusting member in transition from the normal mode to the protection mode decrease the size of the intermediate passage and results in a decreased amount of fluid allowed to flow from the inlet port to the outlet port, and wherein the amount of fluid allowed to flow from the inlet port to the outlet port is not zero when the adjusting member is in the protection mode, thereby allowing heat inside a gas burning apparatus to be retained.