Auxiliary device for oil burner for mixing water and oil for combustion

Claim 1

Apparatus for supplying a combustion mixture of oil and water to an oil burner having a combustion chamber, said apparatus including an oil supply, a tank and an oil pump and a discharge nozzle at the combustion chamber, said apparatus comprising: a piston mounted in said tank dividing said tank into two chambers, one for oil and one for water, said piston reciprocally movable lengthwise of said tank in response to pressure differentials acting on opposite sides thereof; a source of water under pressure connected to one of the chambers in said tank; a valve between said tank and its water source, means responsive to the firing of said oil burner for closing said valve while the oil burner is firing; conduit means connecting said oil pump to the other chamber in said tank to subject the water content of said tank to the same pressure as the oil being pumped by said pump; a first mixing chamber and a pair of adjacent nozzles, one of said nozzles being connected to said oil pump and the other being connected to said one chamber of said tank; for discharing both oil and water into said chamber to intermix the same; a second chamber and a third nozzle communicating with said first chamber for discharging the oil/water mix from said first chamber into said second chamber; conduit means interconnecting said second chamber with said discharge nozzle in said combustion chamber for conducting the oil/water mixture to said discharge nozzle.