Fuel injection device

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United States of America Patent

PATENT NO 9840990
SERIAL NO

15186327

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Abstract

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A fuel injection device for smooth discharge of a gas accumulated therein comprising a fuel pump, a solenoid valve for injecting pressurized fuel into the intake passage of an engine, a high-pressure fuel passage extending from the fuel pump to the solenoid valve and has a medially positioned constant-pressure chamber, and a fuel return passage connected to a fuel return pipe, with the fuel return passage extending from the constant-pressure chamber and having a medially positioned priming pump. The constant-pressure chamber is configured with the top wall in the upper space thereof disposed above the opening of the high-pressure fuel passage opposite the solenoid valve, the fuel return passage opens into the upper space at a position above the opening of the high-pressure fuel passage, and the gas accumulating in the constant-pressure chamber is discharged from the upper space toward the fuel tank via the fuel return passage.

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Patent Owner(s)

Patent OwnerAddress
ZAMA JAPAN KABUSHIKI KAISHA2-154-14 OBUKE HACHIMANTAI-SHI IWATE 028-7111

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nonaka, Takumi Iwate, JP 48 123
Watanabe, Hideki Iwate, JP 241 1931

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  • 1 Citation Count
  • F02M Class
  • 17.36 % this patent is cited more than
  • 8 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges150635651021101 - 1011 - 2021 - 3031 - 4041 - 5051 - 60050100150200250300350400450500550600650700

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