Title:
合成樹脂製の燃料デリバリ管
Document Type and Number:
Japanese Patent JP7193217
Kind Code:
B2
Abstract:
To provide a fuel delivery pipe which can exactly prevent pulsation accompanied by an on/off-operation of an injector.SOLUTION: A fuel delivery pipe comprises: a cylinder body 1 with a truck passage 2 as an inside part; a group of brake passages 13 branched from the cylinder body 1; a socket part 3 integrally formed at the branch passages 13; and a fuel supply passage 10 connected with a fuel pipe. The branch passages 13 and the fuel supply passage 10 are arranged in postures at which their axial cores 14, 16 intersect with each other at an inner angle of an obtuse angle θ. Axial cores 14 of the branch passages 13 are offset to a side opposite to the fuel supply passage 10 with an axial core 15 of the trunk passage 2 sandwiched therebetween, and accompanied by the offset, a part of the branch passages 13 has a bottom part 13b continuing to an internal periphery of the trunk passage 2. Due to the existence of the bottom part 13b, an impact wave accompanied by the drive of an injector 17 can be remarkably attenuated. Since the inn angle θ between the fuel supply passage 10 and the branch passages 13 is the obtuse angle, a joint pipe 7 can be properly separated from a cylinder head, thus allowing the easy connection of the fuel pipe.SELECTED DRAWING: Figure 4
Inventors:
Akihiro Sakata
Kenta Hagiwara
Toshiyuki Saio
Kenta Hagiwara
Toshiyuki Saio
Application Number:
JP2018239782A
Publication Date:
December 20, 2022
Filing Date:
December 21, 2018
Export Citation:
Assignee:
Daihatsu Motor Co., Ltd.
Shinryo Corporation
Shinryo Corporation
International Classes:
F02M55/02; F02M37/00
Domestic Patent References:
| JP2014227850A | ||||
| JP4062351U | ||||
| JP2010270761A |
Foreign References:
| US20170159627 |
Attorney, Agent or Firm:
Hiroyuki Nishi
Ryuichi Watanabe
Ryuichi Watanabe
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