Title:
燃料噴射装置
Document Type and Number:
Japanese Patent JP6458747
Kind Code:
B2
Abstract:
A fuel injection device that injects fuel from injection holes (44), and that is equipped with: a valve body (40, 240) in which the injection holes and a supply flow path (41) supplying fuel to these injection holes are formed; a valve member (60) that opens/closes the injection holes when displaced relative to the valve body; a drive unit (30) that generates driving force that displaces the valve member; a first piston member (80, 280) that partitions at least a portion of an oil-tight chamber (71, 271) filled with fuel and compresses the fuel in the oil-tight chamber by means of the driving force of the drive unit; and a second piston member (90, 290) that partitions at least a portion of the oil-tight chamber (71, 271) and is pressed by the fuel in the oil-tight chamber, thereby changing the direction of the driving force applied to the fuel in the oil-tight chamber and transmitting the driving force to the valve member.
Inventors:
Horibe Munehisa
Fujino Tomoki
Atsushi Kawamura
Masayuki Suzuki
Satoshi Sugawara
Koji Ishizuka
Fujino Tomoki
Atsushi Kawamura
Masayuki Suzuki
Satoshi Sugawara
Koji Ishizuka
Application Number:
JP2016033519A
Publication Date:
January 30, 2019
Filing Date:
February 24, 2016
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M47/00
Domestic Patent References:
| JP2009250074A | ||||
| JP2009257309A | ||||
| JP2009275692A | ||||
| JP2010223196A |
Foreign References:
| US20090200406 |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo