Stove

Abstract

A stove has a fuel reservoir which communicates via fuel supply line with a burner. A stop valve in the fuel supply line controls fuel supply from the fuel reservoir to the burner. A normally-open emergency shut-off valve in the fuel supply line is operable to close the fuel supply line if the fuel pressure rises a preset amount above a normal operating pressure due to overheating of the fuel reservoir for example.

Description

INTRODUCTION[0001]This invention relates to stoves, and in particular to chafing burners and the like.[0002]The invention is particularly concerned with compact portable freestanding stoves of the type used in the catering industry and also for leisure activities, such as camping, hiking, sailing and the like. A stove of this type is described in PCT Patent Application Publication No. WO2008 / 119796, which discloses a stove having a burner, a fuel reservoir, a fuel supply line communicating between the fuel reservoir and the burner, a stop valve in the fuel supply line which is operable to control the supply of fuel from the reservoir to the burner, and a normally open emergency shut-off valve which is operable to close the fuel supply line, when the stove is tipped away from a normal upstanding operating position by a preset amount. This provides a safety cut off of fuel gas supply to the burner if the stove is accidentally knocked over. Because of the proximity of the burner to the...

AI Technical Summary

Benefits of technology

The patent describes a valve that can control the flow of fuel through it. When the valve is open, fuel can pass through the valve, and when it is closed, fuel flow is prevented. To achieve this, the valve has a plunger that fits tightly into a bore in the valve. The plunger has seals that fit tightly around it to prevent fuel from leaking through the valve when it is open. When the valve is closed, the seals prevent flux of fuel through the valve. This design is important for controlling fuel flow in engines.

Problems solved by technology

Because of the proximity of the burner to the fuel reservoir, and particularly when the burner is used for extended periods, some of the heat generated at the burner may cause heating of the reservoir, with a consequent increase in pressure in the fuel gas contained therein.

This is undesirable from a safety point of view and also presents difficulties in regulating the temperature produced by the burner and possible overheating and spoiling of the foodstuffs being heated by the burner in use.

There is also the possibility of damage to the burner and the food display unit.

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