Toyotomi Kogyo Co., Ltd.

Toyotomi Co., Ltd.

Toshihiko Yamada

Yutaka Nakanishi

Kazuharu Nakamura

Yoshio Mito

Kenji Nakamura

Yuji Sanada

Shigeo Gamou

Kiyonobu Itoh

Masanori Kawamura

Toru Nakagaito

Takashi Kawai

Shozou Asano

Junji Mizuno

A discharge-type capable of accomplishing ignition of a wick at a position convenient or suitable for the ignition. Spark discharge for ignition of a wick is started in the course of raising of the wick. Thus, any possible variation in height of the wick and deformation of the wick due to wear do not adversely affects ignition of the wick, because the ignition is carried out when a gap between the wick being raised and the discharge electrode is rendered optimum for the ignition. This permits a dry cell to be satisfactorily used as a power supply for the ignition.

Discharge-type ignition device for oil burner

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.

A wick operating structure of the lever actuation type for an oil burner capable of finely adjusting the combustion with high accuracy during the combustion operation. The structure includes an operation lever for rotating a wick operating shaft which is provided with a drive pin and a plurality of drive levers pivotally moved independent from one another so as to be accessible to the drive pin. The drive levers are formed with a V-shaped recesses which are different in configuration from one another little by little and in which the drive pin is alternatively fitted to cause the operation lever to be pivotally moved to different positions little by little.

Wick operating structure of lever actuation type for oil burner

A fire-extinguishing device for an open-type oil burner is disclosed which is capable of effectively preventing the discharge of bad odor to a room due to unburned fuel oil gas at the fire-extinguishing of the oil burner. The fire-extinguishing device includes a damper for closing, at the fire-extinguishing, an opening of a combustion cylinder construction of the oil burner through which combustion gas is discharge to a room. The damper or combustion cylinder construction may be provided with an oxidation catalyst plate through which combustion gas is discharged to a room at the fire-extinguishing, so that unburned fuel oil gas may be removed by means of the catalyst plate.

Fire-extinguishing device for oil burner

An oil reservoir for an oil burner capable of ensuring oil-tightness between the oil reservoir and a partition with simple operation and structure and reducing a manufacturing cost. In the oil reservoir, a partition plate and a cover plate are provided with a plurality of spot welding portions and opposite to each other through an annular overlap formed therebetween. One of the partition plate and cover plate is formed at the overlap with an annular projection which is arranged in a manner to project toward the other to forcedly press the partition plate and cover plate against each other and the overlap is arranged at or near the spot welding portions, whereby the partition plate and cover plate are oil-tightly connected together.

Oil reservoir for oil burner

A fire-extinguishing device for an oil burner capable of preventing a wind blowing against the oil burner from adversely affecting combustion operation of the oil burner through the fire-extinguishing device to ensure safe combustion operation. The device includes a valve for operating an aperture through which an air chamber communicated through a wick receiving chamber to a combustion cylinder construction is communicated to an oil reservoir communicated to an ambient atmosphere. The valve is actuated to open and close the aperture when a wick is at a wick raised position and a wick lowered position, so that air may be supplied from the ambient atmosphere through the space of the oil reservoir, air chamber and wick receiving chamber to the combustion cylinder construction for combustion during combustion operation.

A safety device for an oil burner is disclosed which is capable of detecting abnormal combustion which forms an excessively decreased flame, for example, sufficient to produce incomplete combustion gas to operate a fire-extinguishing device of the oil burner. The safety device includes an abnormal combustion sensing and actuation mechanism which is adapted to receive heat rays from the oil burner to detect the abnormal combustion and a starting member selectively actuated by the mechanism to operate the fire-extinguishing device when the mechanism detects the abnormal combustion.

Safety device for oil burner

An automatic fire-extinguishing device for an oil burner capable of being manufactured with a low cost, compacted in construction and actuated with high accuracy. In the device, a gear which is loosely fitted on a wick actuating shaft and has a return spring loosely fitted on the shaft and fixed between the gear and a burner body is formed with a cutout about a portion thereof opposite to a stopper engaged with the gear when the gear is at a wick raising position. At the cutout is arranged a stop gear so as to be engaged with the stopper at the wick raising position, which is formed of a material having a friction coefficient smaller than that of the gear.

Automatic fire-extinguishing device for oil burner

A catalyst moving structure for an oil burner capable of facilitating handling of the oil burner in the manufacturing and maintenance as well as covering a combustion gas discharge opening of a combustion cylinder construction of the oil burner when a wick operating shaft is rotated to a fire-extinguishing position, to thereby effectively preventing discharge of bad odor during the fire-extinguishing operation. The catalyst moving structure includes a catalyst moving mechanism including a vertically movable sliding shaft and a connecting rod pivotally mounted on the sliding shaft, a catalyst support member mounted on the sliding shaft, and a movement transmission mechanism including a cam device fitted on the wick operating shaft and a push-up lever operatively connected between the cam device and the connecting rod to transmit actuation of the wick operating shaft to the connecting rod to vertically move the sliding shaft.

Catalyst moving structure for oil burner

An ignition system for oil burner capable of positively accomplishing ignition without operating a combustion cylinder construction and keeping ignition performance for a long period of time. The ignition system is constructed in a manner such that an ignition heater is operated at a level below the combustion cylinder construction and a closing door is actuated in synchronism with the ignition heater so that an ignition window may be opened only when the ignition heater is approached to a wick for ignition.

Ignition system for oil burner

A petroleum combustion device for heating rooms or the like comprising a primary combustion chamber, a secondary combustion chamber disposed on the primary combustion chamber and provided at that portion of its base plate which is outside an outer cylinder of the primary combustion chamber with an air path and a flame extension device arranged in the secondary combustion chamber and communicated with the upper portion of an inner flame cylinder of the primary combustion chamber.

Petroleum combustion device

A fire extinguishing device for an oil burner capable of instantaneously and surely accomplishing the fire extinguishing with ease and without generating any bad odor. A wick receiving chamber has a width larger than the thickness of a wick received therein and an air chamber communicated to the wick receiving chamber is disposed adjacent thereto. The air chamber is adapted to be communicated to an ambient atmosphere during the combustion operation and to be shut off therefrom by means of a valve. The fire extinguishing of an oil burner is accomplished by utilizing an air stored in the air chamber.

Growing community of inventors

Aichi, Japan

Toshihiko Yamada