G - Physics
05
D
342/47, 342/13.6
G05D 23/19 (2006.01) B60H 1/22 (2006.01) F23N 5/20 (2006.01) G05D 23/24 (2006.01) F02B 1/04 (2006.01) F23N 5/14 (2006.01)
Patent
CA 1263726
ABSTRACT OF THE DISCLOSURE A controller for a heater has two switch circuits for controlling the supply of electric power to an atomizing glow plug for atomizing fuel and an ignition glow plug for igniting atomized fuel, the glow plugs being connected parallel to each other. One of the switch circuits includes a series-connected resistor for producing a voltage drop thereacross. During an inital period of operation of the heater, the first switch circuit free of the series-connected resistor is turned on to heat the glow plugs quickly up to respective prescribed temperatures for atomizing and igniting the fuel. Upon elapse of a predetermined period of time during which the prescribed temperatures are reached, the first switch circuit is turned off and the second switch circuit with the series-connected resistor is turned on to keep the glow plugs at the prescribed temperatures without heating them positively.
526063
Kawamura Hideo
Yamashita Keiichi
Yoshida Yukio
Isuzu Motors Limited
Kawamura Hideo
Mcfadden Fincham
Yamashita Keiichi
Yoshida Yukio
LandOfFree
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