Patent ID: 6908299

Claim:
A combustion apparatus comprising: a spraying means for spraying a fuel to be burnt and comprising a fuel spraying nozzle for jetting fuel, a fuel channel for flowing the fuel therethrough, the fuel channel comprising a fuel feed canal for communicating fuel to the fuel spraying nozzle, the fuel channel further comprising a fuel return canal for returning fuel from the fuel spraying nozzle that is communicated to the fuel spraying nozzle through the fuel feed canal and not jetted by the fuel spraying nozzle, a fuel pump disposed in the fuel channel so as to compress the fuel flowing towards the spraying means, an intermittently operating valve disposed in the return canal of the fuel channel so that a valve body of the valve is driven to close and open the return canal intermittently or periodically, and a valve controller to control the timing at which the valve body is driven to close and open the return canal.