Glow plug with small-diameter sheath tube enclosing heating and

Details Glow plug with small-diameter sheath tube enclosing heating and Glow plug with small-diameter sheath tube enclosing heating and

1999-04-14

2000-05-16

Jeffery, John A.

Electric heating

Heating devices

Resistive element: igniter type

123145A, F23Q 700

Patent

active

060640391

ABSTRACT:
A glow plug has a sheath heater, a heating coil and a control coil. The sheath heater has a sheath tube having a closed leading end. The heating coil is disposed adjacent to the leading end of a projection of the sheath tube beyond a main metal shell. The control coil is connected in series to the rear end of the heating coil and arranged to be heated by the heating coil to raise the electrical resistance to control the supply of electric power to the heating coil. The projection of the sheath tube has a substantially uniform outer diameter in the axial direction and the outer diameter is between 3.0 mm to 4.4 mm. Therefore, a temperature rising characteristic at the surface of the leading end of the sheath tube has a peak temperature TP in an initial stage of energization and saturates at a temperature not higher than the peak temperature TP.

REFERENCES:
patent: 4380973 (1983-04-01), Steinke
patent: 4423309 (1983-12-01), Murphy et al.
patent: 4549071 (1985-10-01), Hatanaka et al.
patent: 4556781 (1985-12-01), Bauer
patent: 5093555 (1992-03-01), Dupuis et al.
patent: 5132516 (1992-07-01), Hatanaka et al.
patent: 5206483 (1993-04-01), Aota
"International Standard (ISO) 7578"; Road vehicles--Sheath-type glow-plugs--General requirements and test methods; Second edition--Dec. 15, 1986; pp. 1-3.

Affiliated with

Also associated with

Rating

Glow plug with small-diameter sheath tube enclosing heating and does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Glow plug with small-diameter sheath tube enclosing heating and , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Glow plug with small-diameter sheath tube enclosing heating and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260536