Method of controlling operation of a liquid-fuel combustion appliance
AssigneeRIELLO S.p.A.
InventorGiuseppe Toniato
Life of this patent
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Abstract
A method of controlling operation of a liquid-fuel combustion appliance. The method is characterized by including an “antiseize operating mode” in which an electric motor and a fuel pump, powered by the electric motor, are started periodically to prevent oxidation and/or polymerization of the liquid fuel in the fuel pump when the fuel pump is idle. More specifically, the fuel pump is a gear pump.
Claims17
1) A method of controlling operation of a liquid-fuel combustion appliance, the method being characterized by comprising an “antiseize operating mode” in which an electric motor and a fuel pump, powered by said electric motor, are started periodically to prevent oxidation and/or polymerization of the liquid fuel in said fuel pump when said fuel pump is idle.
9) A liquid-fuel combustion appliance (10), the appliance (10) comprising an electric motor (11) for powering a fuel pump (12);
- a feed network (14, 16, 17a, 17b) for feeding liquid fuel from a tank (13) to a combustion head (H);
- disabling means for disabling fuel flow to said combustion head (H);
- diverting means for diverting liquid-fuel flow from said feed network (14, 16, 17a, 17b) back to said tank (13);
- and electronic control means (100);
- the appliance (10) being characterized by also comprising activating means (24) activated periodically to prevent oxidation and/or polymerization of the liquid fuel in said fuel pump (12) when said fuel pump (12) is idle.
Dependencies are inferred from the claim text.