Title:
FUEL INJECTION DEVICE
Document Type and Number:
Japanese Patent JP2023142635
Kind Code:
A
Abstract:
To provide a fuel injection device which can improve durability.SOLUTION: In a fuel injection device 1 for injecting fuel F containing a hydrogen gas toward a combustion chamber 106 of an engine 100, the fuel injection device 1 comprises: a valve seat part (a main body 2, a tip part 21) having a first surface 21s at which an injection hole 21p of the fuel F is opened; a valve body (a needle 3, a valve part 31) having a second surface 31s opposing the first surface 21s, and opening and closing the injection hole 21p by being driven so that a distance between the first surface 21s and the second surface 31s is changed; and a seal part 50 interposed between the first surface 21s and the second surface 31s, and sealing the injection hole 21p by contacting with the first surface 21s and the second surface 31s in a closed state of the injection hole 21p.SELECTED DRAWING: Figure 2
Inventors:
ONO MOTOAKI
Application Number:
JP2022049629A
Publication Date:
October 05, 2023
Filing Date:
March 25, 2022
Export Citation:
Assignee:
HINO MOTORS LTD
International Classes:
F02M21/02; F02M61/16; F02M61/18
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki
Kouichi Osaka
Yoshiki Kuroki
Kouichi Osaka