Matsushita Electric Industrial Co., Ltd.

Makoto Hori

Katsuhiko Yamamoto

Takashi Deguchi

Toshiyuki Ishiguro

Morihiro Nakayama

Hiroyuki Unida

Takaaki Nobue

Tadao Kanno

Soichi Kitajima

Masao Itou

Nerumitu Rokudo

A remote control system includes a first remote control unit having complete functional capabilities and a second remote control unit having simplified and abbreviated functional capabilities. An apparatus is controlled in a detailed manner by the first remote control unit. For example, the operational mode and timer settings are set by the first remote control unit. On the other hand, the second remote control unit is limited to activating and deactivating the apparatus and/or the timer of the apparatus.

Remote control system having full-function and abbreviated-function

A burner with an ultrasonic vibrator wherein a plurality of electrostrictive vibrator elements are clamped between a front metal plenum having an atomizing surface formed at the leading end thereof and a rear metal plenum; an intermediate supporting member is joined to said front or rear metal plenum in proximity to one of said vibrator elements most closest thereto; the intermediate supporting member is in turn supported by a supporting member; means is provided for supplying a liquid fuel to the atomizing surface; and means for feeding the combustion air in front of the atomizing surface, whereby no undesired load is added to the vibration system; the atomizing surface is subjected to stable ultrasonic vibration and consequently the atomized fuel particles may be well mixed with combustion air.

Burner with ultrasonic vibrator

A combustion device of the type for atomizing liquid fuel by an ultrasonic atomizer and mixing the atomized fuel particles with air for combustion. A first air passage is defined around a horn of the ultrasonic atomizer by an inner cylinder, and a second air passage is defined around the first air passage by the inner cylinder and an outer cylinder. The air flowing through the first air passage is discharged into a cylindrical combustion section substantially in parallel with the axis thereof while the air flowing through the second air passage is swirled in the direction substantially tangential to the inner wall of the combustion section and discharged toward the atomizing surface of the horn, whereby the satisfactory mixing of the atomized fuel particles with the combustion air may be attained and the flame may be optimumly stabilized.

Combustion device

An ultrasonic generator comprising an ultrasonic transducer having a natural frequency at which the dynamic admittance becomes maximum; a main circuit consisting of a switching circuit or first current regulator and a second current regulator connected in series to said switching circuit or first current regulator, the ultrasonic transducer being interconnected between an electrical source and the junction between said switching circuit or first current regulator and the second current regulator; a driving circuit for alternately driving the switching circuit or first current regulator and the second current regulator at a frequency equal to or substantially equal to the natural frequency of the ultrasonic transducer, thereby supplying the driving current thereto; and a feedback circuit for deriving an AC voltage in proportion to the magnitude of the driving current and feeding back this voltage to the driving circuit.

Ultrasonic generator with combined oscillator and current regulator

In a liquid fuel burner of the type utilizing a liquid fuel atomizer comprising a hollow horn which is oscillated at an ultrasonic frequency by a transducer and includes a nozzle, the ratio of the area of the end surface of the nozzle or atomizing surface to the area of the nozzle opening is determined depending upon the properties of liquid fuel to be used.

Growing community of inventors

Ohmihachiman, Japan

Makoto Hori