Electric heating – Heating devices – With power supply and voltage or current regulation or...
Patent
1980-03-10
1982-09-07
Goldberg, Elliot A.
Electric heating
Heating devices
With power supply and voltage or current regulation or...
219499, 219492, 219483, 123179H, H05B 102
Patent
active
043485839
ABSTRACT:
A heating device for use in motor vehicles to rapidly heat combustion chambers, exhaust gas sensors, catalyzers and other associated apparatus. A resistive heating element is connected in series with a low-impedance measuring resistor and a switch across a power source, while a resistance bridge is formed with the aid of two further resistors. The diagonal bridge voltages are compared in a comparator whose output actuates a control circuit which operates the heater switch. The heater switch also provides the power for the comparator. In a first interval, constant current is applied to the heating element, while the current is pulsed during a second time interval. The switch control pulses may be provided by a free-running oscillator or one whose pulses are synchronized with the undulations of the engine starter current.
REFERENCES:
patent: 3679518 (1972-07-01), Andler et al.
patent: 3691393 (1972-09-01), Papachristov
patent: 3881085 (1975-04-01), Traister
patent: 3894282 (1975-07-01), MacFarland, Jr.
patent: 4002882 (1977-01-01), McCutchen
patent: 4075998 (1978-02-01), Krauss et al.
patent: 4088109 (1978-05-01), Woodruff et al.
patent: 4090062 (1978-05-01), Phillips et al.
patent: 4130853 (1978-12-01), Baker
Bube Carsten
Thiele Gerd
Zeller Hans
Goldberg Elliot A.
Greigg Edwin E.
Paschall M. H.
Robert & Bosch GmbH
LandOfFree
Rapidly-heated periodically-maintained heater for motor vehicle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rapidly-heated periodically-maintained heater for motor vehicle , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapidly-heated periodically-maintained heater for motor vehicle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1343666