Toyotomi Co., Ltd.

Toyotomi Kogyo Co., Ltd.

Toru Nakagaito

Yutaka Nakanishi

Toshihiko Yamada

A discharge-type ignition device for an oil burner capable of permitting ignition of a wick to be carried out at any optimum position of the wick which is fixed. First and second discharge electrodes are arranged in proximity to the wick when it is raised to a combustion position. An ignition switch is kept turned on in the course of upward movement of the wick for ignition, so that spark discharge is generated between the discharge electrodes toward the wick being raised. The wick is raised to an uppermost position beyond the combustion position every time when the ignition operation is carried out, so that ignition may take place at any optimum position of the wick.

Discharge-type ignition device for oil burner

A multi-cylinder combustion structure for an oil burner capable of permitting a red-heated section of a double combustion cylinder to be uniformly red-heated while ensuring complete combustion irrespective of the amount of combustion, to thereby exhibit satisfactory aesthetic and handling characteristics. The structure includes a central cylinder which is provided with a plurality of circumferentially-extending strip-like perforated sections and a plurality of circumferentially-extending strip-like non-perforated sections in a manner to vertically alternate with one another. Therefore, even when the wick is lowered to decrease the amount of combustion to a degree sufficient to cause the upper end of a combustion flame to be positioned in the gap of the double combustion cylinder, the upper portion of a red-heated section of the double combustion cylinder is rendered uniformly dark and the lower portion thereof is rendered uniformly red-heated while ensuring that the boundary between both portions is circumferentially uniformly defined.

Multi-cylinder combustion structure for oil burner

A combustion cylinder structure for an oil burner capable of stably carrying out minimum combustion as well as controlling the combustion operation over a wide range. The structure is so constructed that a lower heat-impermeable cylinder of an outermost cylinder construction of a multi-cylinder combustion assembly is provided at the upper end thereof with an inward collar, which is provided at the inner end thereof a cylindrical section for rectifying air introduced through a gap between the cylindrical section and an outer cylindrical member to guide it along the cylindrical member. Also, the collar is provided with through-holes, which are arranged in the circumferential direction to guide air along a heat-impermeable cylinder arranged on the heat-impermeable cylinder, resulting in preventing the generation of a turbulent flow between the outer cylindrical member and the heat-permeable cylinder.

Growing community of inventors

Aichi, Japan

Toru Nakagaito