Title:
燃料噴射装置
Document Type and Number:
Japanese Patent JP6922592
Kind Code:
B2
Abstract:
To provide a fuel injection device reducing discrepancies in injection rating in the fuel injection device that changes the rate of injection by drive control of a needle valve by the fuel pressure in the pressure control chamber.SOLUTION: A first valve 60 is formed of magnetic material, has a flange part 63 on the base end side and opens/closes a first fuel outflow passage 47. A second valve 70 is formed of magnetic material, is provided coaxially with the first valve 60, has a flange part 73 on the base end side and opens/closes a second fuel outflow passage 48. A first spring 66 and a second spring 76 bias the first valve 60 and the second valve 70 in the valve closing direction, respectively. A solenoid 83 generates an electro-magnetic force by electric conduction and is switchable between the normal direction and the opposite direction of an electrification direction. A permanent magnet 84 is formed annularly and magnetized so that one in the axial direction is the N pole and the other in the axial direction is the S pole. The permanent magnet 84 is provided in a housing on the tip side of the flange part 63 of the first valve 60.SELECTED DRAWING: Figure 5
Inventors:
Masayuki Suzuki
Hideaki Suzuki
Hideaki Suzuki
Application Number:
JP2017182108A
Publication Date:
August 18, 2021
Filing Date:
September 22, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M47/00; F02M45/00; F02M51/00
Domestic Patent References:
| JP2001227428A | ||||
| JP201884226A | ||||
| JP2008309015A |
Attorney, Agent or Firm:
Masaki Hattori