Fuel injection device with air chamber
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United States of America Patent
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Sep 18, 1990
Grant Date -
N/A
app pub date -
Aug 30, 1989
filing date -
Aug 30, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel injection device for an internal combustion engine comprises an electrically controlled injector having a body removably connected in a passage opening into an engine induction passage. The body has a nose of reduced diameter. A cap is fitted on the nose of the injector and formed with a fuel jet outlet opening. The cap and nose of the injector define an air chamber. Lateral openings of the cap communicate the air chamber with a space formed between the cap and the wall of the passage, connected to an air source. A spacer plate is retained between the cap and the nose and formed with a central calibrated hole surrounding an outlet of the injector for constituting a calibrated fuel and air jet outlet passage. The spacer plate is retained between the nose and the cap in a predetermined position.
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