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Title:
FUEL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/145364
Kind Code:
A1
Abstract:
This fuel system comprises: fuel injection valves; a fuel supply path through which fuel is supplied to the fuel injection valves; a fuel return path through which excess fuel at the fuel injection valves is returned; a leakage fuel return path which has one end connected to a connecting part between the fuel injection valves and the fuel supply path and the other end connected to the fuel return path; an inspection hole which is disposed in the leakage fuel return path and which can be opened and closed by a plug member; and a check valve which is disposed in the leakage fuel return path and which prevents fuel from flowing toward the connecting part side.

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JP2529032[Name of invention] Connection structure of branch branch pipes in high-pressure fuel multi-purpose pipes
JP2003532820INDUSTRIAL APPLICABILITY A casing including a connecting pipe piece for a fuel injection system for an internal combustion engine and a connecting pipe piece preloaded and welded, particularly a fuel high-pressure accumulator.
Inventors:
WATANABE SOTA (JP)
OGAWA HISAO (JP)
MAEHATA KIMIHIKO (JP)
Application Number:
PCT/JP2022/047983
Publication Date:
August 03, 2023
Filing Date:
December 26, 2022
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND ENGINE & TURBOCHARGER LTD (JP)
International Classes:
F02M55/00; F02M37/00
Domestic Patent References:
WO2005038232A12005-04-28
Foreign References:
JPH1172059A1999-03-16
JP2009174535A2009-08-06
JP2014508245A2014-04-03
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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