PETROLEUM HOT AIR HEATER

PURPOSE:To provide a high safe petroleum hot air heater by a method wherein combustion is terminated under a turned-off condition of a switch for turning on or off through removal or a setting of a cartridge tank and then an inverse voltage is doubled against a fan motor. CONSTITUTION:When a cartrid...

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Bibliographic Details
Main Authors TASHIRO TAKESHI, TOMIOKA MITSUHARU
Format Patent
LanguageEnglish
Published 23.12.1988
Subjects
BLASTING
FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL
HEATING
LIGHTING
MECHANICAL ENGINEERING
RANGES
VENTILATING
WEAPONS
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Summary:PURPOSE:To provide a high safe petroleum hot air heater by a method wherein combustion is terminated under a turned-off condition of a switch for turning on or off through removal or a setting of a cartridge tank and then an inverse voltage is doubled against a fan motor. CONSTITUTION:When a cartridge tank 4 is inserted and set in a oil pan 15, an oil tank switch 16 is changed over to a contact point a. When a power supply switch 17 is turned ON, a fan motor 7 is energized, and the oil is ignited and burned. When the tank 4 is pulled out of the oil pan 15, the switch 16 is changed over to a contact point b, a timer 24 and a relay 22 are energized, a relay contact point 23 is turned off and then the combustion is terminated. At the same time an intermediate tap of the fan motor 7 is energized and a current is flowed through a main coil c and auxiliary coils d and e, the fan motor 7 is stopped instantaneously and then starts to rotate in a reverse direction. Then, a contact point 24a of a timer 24 is turned off after a specified time, the fan motor 7 is stopped.
Bibliography:Application Number: JP19870150642