Title:
FUEL INJECTION DEVICE FOR SPARK-IGNITION INTERNAL COMBUSTION ENGINE AND RELATIVE CONTROL METHOD
Document Type and Number:
Japanese Patent JP2021148124
Kind Code:
A
Abstract:
To provide a fuel injection device for a spark-ignition injection engine, in particular, easy in manufacturing and economical, without being troubled by disadvantages of a conventional device, and a control method thereof.SOLUTION: A fuel injection device 1 for a spark-ignition internal combustion engine includes: several cylinders 11 where main combustion chambers MC are respectively defined; first injectors 2 and spark plugs 13 coupled to the cylinders; combustion pre-chambers PC respectively obtained in an area of the spark plug; extraction ducts 17, 28 originating from each of the cylinders to extract a gas mixture existing inside of each main combustion chamber; a reserve 18 where the gases extracted by the extraction ducts are mixed with the fuel of the amount needed to obtain combustion under stoichiometric conditions inside the combustion pre-chambers; and second injectors 27 respectively coupled to each of the combustion pre-chambers to inject the gas/fuel mixture coming from the reserve.SELECTED DRAWING: Figure 2
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Inventors:
MATTEO DE CESARE
FEDERICO STOLA
FEDERICO STOLA
Application Number:
JP2021042292A
Publication Date:
September 27, 2021
Filing Date:
March 16, 2021
Export Citation:
Assignee:
MARELLI EUROPE SPA
International Classes:
F02B23/08; F02B19/10
Attorney, Agent or Firm:
Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe
Shinya Mitsuhiro
Tatsuhiko Abe