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Patent Searching and Data


Title:
FUEL RAIL FOR GASOLINE DIRECT INJECTION
Document Type and Number:
WIPO Patent Application WO/2016/116983
Kind Code:
A1
Abstract:
[Problem] To obtain, at low cost, a fuel rail that maintains low hardness and good formability before being formed into a tube stock, can be made to form a welded pipe, and has high-strength properties with which the fuel rail can withstand a high fuel pressure even when formed so as to be relatively thin. [Solution] A fuel rail for gasoline direct injection that is used at a fuel pressure of at least 30 MPa and is formed from an iron-alloy welded pipe. The fuel rail comprises an iron alloy that contains chemical components of C, Si, Mn, P, S, Nb, and Mo. The plate thickness t and the outer diameter D of the fuel rail have a ratio t/D of 0.2 or less. A bainitic structure can be precipitated by brazing the fuel rail in a furnace during manufacturing.

Inventors:
HAYASHI KOICHI (JP)
Application Number:
PCT/JP2015/006215
Publication Date:
July 28, 2016
Filing Date:
December 14, 2015
Export Citation:
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Assignee:
USUI KOKUSAI SANGYO KK (JP)
International Classes:
F02M55/02; C22C38/00; C22C38/26; C21D9/08
Foreign References:
JP2005226623A2005-08-25
JP2010106353A2010-05-13
JP2007291416A2007-11-08
Other References:
See also references of EP 3249211A4
Attorney, Agent or Firm:
GINZA SOGO PATENT FIRM (JP)
Patent business corporation The Ginza synthesis patent firm (JP)
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