Title:
燃料噴射装置
Document Type and Number:
Japanese Patent JP6766711
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a fuel injection device having a control member which enables generation of high pressure while inhibiting change of injection performance.SOLUTION: In a fuel injection device 100, a path connecting a circumference groove 81 and a communication groove 82 with an upstream side communication passage 55 is provided at a lower seat part 47b. The structure causes a fuel flowing from the lower seat part 47b to flow into the upstream side communication passage 55 through the circumference groove 81 and the communication groove 82 formed at the lower seat part 47b. The circumference groove 81 and the communication groove 82 are a path which bypasses a valve spring 60. The fuel flowing from an intermediate passage 59 into an intermediate chamber 47 flows into the upstream side communication passage 55 through the path that is the circumference groove 81 and the communication groove 82.SELECTED DRAWING: Figure 4
Inventors:
Nao Ogasawara
Ueda Daiji
Saito Mahikari
Ueda Daiji
Saito Mahikari
Application Number:
JP2017053197A
Publication Date:
October 14, 2020
Filing Date:
March 17, 2017
Export Citation:
Assignee:
株式会社デンソー
International Classes:
F02M47/00; F02M47/02
Domestic Patent References:
| JP5133296A | ||||
| JP2007218249A | ||||
| JP2008002306A | ||||
| JP2009215892A | ||||
| JP2016053354A |
Attorney, Agent or Firm:
Kazuyuki Yahagi
Taihei Nonobe
Takanori Kubo
Taihei Nonobe
Takanori Kubo