Oil stove for burning waste oil and normal heating oil

US4385621A · kind A · utility

Inventor

• Walter Kroll · Steinheim an der Murr, DE

Key dates

• Filing date: Sep 10, 1981
• Grant date: May 31, 1983
• Expiry date: Sep 10, 2001

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F24C5/02
• WIPO field: Thermal processes and apparatus
• WIPO sector: Mechanical engineering

Abstract

An oil stove for burning both waste oil and heating oil has a primary combustion chamber for the initial combustion of fuel and an adjoining secondary combustion chamber of larger diameter in which combustion is completed. The two chambers are located in a housing and a fan is arranged at the bottom of the housing for delivering air to the inside of the housing. The air is warmed by its passage between the walls of the housing and the primary and secondary combustion chambers and is discharged for heating purposes via louvres at the top of the housing. The primary combustion chamber is defined by a pot having air inlet openings in its sidewall, a substantially closed base, a burner ring located towards the upper end of the pot and a closed jacket surrounding the pot spaced from said sidewall. In operation a pool of fuel is formed at the base of the pot and a part of the fan delivery is ducted to the space between the closed jacket and the pot for supplying air for the combustion process. Dual fuel operation is enabled by the intentional forced cooling of the base plate defining the closed base of the primary combustion chamber and accumulated sediment from the burning of waste oil …