Title:
燃料噴射装置
Document Type and Number:
Japanese Patent JP6919437
Kind Code:
B2
Abstract:
To provide a fuel injection device which reduces a drive force of an electromagnetic valve necessary for sealing fuel flow-out paths, and is reducible in a physique, in the fuel injection device for controlling the fuel pressure of a pressure control chamber by opening and closing the two fuel flow-out paths.SOLUTION: In a fuel injection valve which can change an injection rate by the drive control of a needle valve by the fuel pressure of a pressure control chamber, one center out-orifice 41 communicating with the pressure control chamber, and a plurality of side out-orifices 421, 422 formed on a circumference coaxial with the center out-orifice 41, and communicating with the pressure control chamber are formed at an orifice plate 14 being a housing. A first valve 60 opens and closes the center out-orifice 41. A second valve 70 is cylindrically formed while being located outside a radial direction of a shaft part 61 of the first valve 60, and opens and closes a plurality of the side out-orifices 421, 422.SELECTED DRAWING: Figure 5
Inventors:
Masayuki Suzuki
Yuki Tanada
Yuki Tanada
Application Number:
JP2017172530A
Publication Date:
August 18, 2021
Filing Date:
September 07, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M45/00; F02M47/00; F02M51/00
Domestic Patent References:
| JP2000297719A | ||||
| JP2008025345A | ||||
| JP2017075532A | ||||
| JP2004137915A |
Attorney, Agent or Firm:
Masaki Hattori