Fluid sprinkling – spraying – and diffusing – With viscosity or temperature responsive control means
Patent
1982-06-02
1986-04-29
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With viscosity or temperature responsive control means
137115, 137566, 239126, F04B 2304, F04B 4900, F04D 1500
Patent
active
045851697
ABSTRACT:
A pair of positive displacement pumps are connected in series between a liquid fuel supply tank and a burner nozzle. Mechanically linked, identical variable orifices are interposed within the supply line between the pumps and the nozzle. A first pressure regulator is connected across the supply line between the pumps and a return line leading from the nozzle back to the supply tank. A pressure sensing line for the first pressure regulator is connected to the supply line on the discharge side of the second positive displacement pump to regulate the outlet pressure of the first pump. The discharge line for one of the variable orifices leads to the burner nozzle and forms part of the supply line, while the discharge line for the other variable orifice bears a second pressure regulator and connects to the return line. A pressure sensing line for the second pressure regulator is connected to the supply line, downstream of the one variable orifice, to insure that the pressure differentials across both variable orifices are identical and that the percentage flow through the one variable orifice and the other variable orifice will remain the same at any given setting. Since the flow from the second positive displacement pump is constant regardless of viscosity and since the flow through the one variable orifice is a fixed percentage of the flow, the flow to the nozzle is limited and fixed regardless of viscosity of the liquid fuel.
REFERENCES:
patent: 2006865 (1935-07-01), Lake
patent: 2537681 (1951-01-01), Lawrence
patent: 2859806 (1958-11-01), Lake et al.
patent: 3515164 (1970-06-01), Dunnous
Dunham-Bush, Inc.
Kashnikow Andres
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