Fuel injection device having heater
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 13, 2003
Grant Date -
Oct 3, 2002
app pub date -
Mar 29, 2002
filing date -
Mar 29, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A nozzle needle has a hollow tubular form having a closed base end. A heat transfer tube is press fitted into a first magnetic portion. The heat transfer tube surrounds an outer peripheral surface of the nozzle needle. A ceramic heater is formed as an integral cylindrical body by sintering a ceramic material together with a heat generating resistive element. A case covers the heater and protects the heater from externally applied water. An inner tube of the case is resiliently engaged with both the heater and the first magnetic portion. Heat of the heater is conducted to the nozzle needle through the inner tube, the first magnetic portion and the heat transfer tube to heat fuel inside the nozzle needle.
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