Title:
インジェクタ
Document Type and Number:
Japanese Patent JP6603622
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide an injector capable of changing a lift speed without disposing a plurality of driving portions.SOLUTION: A needle 4 is operated in a first mode to be operated at a first lift speed and a second mode to be operated at a second lift speed smaller than the first lift speed, when an increase amount of a lift amount per a unit time is the lift speed. A switching portion 51 switches the first mode and the second mode by movement in accompany with displacement of a switching valve element 21. An area of a pressure receiving face to apply a back pressure to the needle 4 in the first mode is smaller than an area of the pressure receiving face of the needle 4 in the second mode. Thus the lift speed in the first mode can be increased in comparison with the lift speed in the second mode. Further as the first mode and the second mode are switched by the movement of the switching portion 51 in accompany with the displacement of the switching valve element 21, a plurality of driving portions are not required. As a result, an injector 1 capable of changing the lift speed without disposing the plurality of driving portions, can be provided.SELECTED DRAWING: Figure 2
Inventors:
Toshiaki Hishima
Ueda Daiji
Ueda Daiji
Application Number:
JP2016135434A
Publication Date:
November 06, 2019
Filing Date:
July 07, 2016
Export Citation:
Assignee:
株式会社SOKEN
株式会社デンソー
株式会社デンソー
International Classes:
F02M45/00; F02M47/00; F02M51/00
Domestic Patent References:
| JP11173234A | ||||
| JP8261092A | ||||
| JP2008309015A |
Foreign References:
| US5894992 |
Attorney, Agent or Firm:
Kenji Ishiguro
Shinji Hase
Shinji Hase