Process and circuit for heating up a glow plug
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 21, 2003
Grant Date -
Dec 13, 2001
app pub date -
Jun 6, 2001
filing date -
Jun 7, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Process and circuit for heating up a glow plug of a given glow plug type in a given arrangement in an internal combustion engine to a predetermined temperature. The power supply voltage is on the glow plug via a measurement resistor (12) and a switch (11). A control and regulation unit (16) taps the voltage drop via the measurement resistor (12) and determines the heat energy supplied to the glow plug therefrom and from the likewise tapped voltage on the glow plug. The signal which occurs on the output (15) of the unit (16) controls the switch (11). After closing the switch (11) the unit (16) supplies the glow plug with heat energy which is added up in the unit (16). As soon as the heat energy which is required for heating up to a predetermined temperature and which is determined beforehand from the known parameters of the glow plug and from the starting temperature is reached, the switch is opened again via the output signal at the output (15).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully