Title:
COMMON RAIL
Document Type and Number:
WIPO Patent Application WO/2008/044343
Kind Code:
A1
Abstract:
A common rail in which localized stress concentrations in the intersections
between a flow passage and branched passages is prevented to avoid damage, such
as cracks, to the intersections. The common rail used for the fuel injection system
of an internal combustion engine has a rail body in which the flow passage is formed
along the axial direction of the rail body, branched pipes arranged along the
axial direction of the rail body, formed integrally with the rail body so as to
project from it, and in which the branched passages branched from the flow passage
are formed. The rail body has, at the intersection between the flow passage and
each branched passage, a thick wall portion where the wall thickness around the
flow passage is greater than the wall thickness around the flow passage of the
other portions of the rail body.
Inventors:
YARITA SHOGO (JP)
KUBO KENICHI (JP)
KUBO KENICHI (JP)
Application Number:
PCT/JP2007/053356
Publication Date:
April 17, 2008
Filing Date:
February 23, 2007
Export Citation:
Assignee:
BOSCH CORP (JP)
YARITA SHOGO (JP)
KUBO KENICHI (JP)
YARITA SHOGO (JP)
KUBO KENICHI (JP)
International Classes:
F02M55/02; F16L41/02; F16L41/08
Domestic Patent References:
| WO2003036075A1 | 2003-05-01 |
Foreign References:
| JP2002168158A | 2002-06-14 | |||
| JP2005508478A | 2005-03-31 | |||
| JP2003510491A | 2003-03-18 |
Attorney, Agent or Firm:
EMORI, Kenji (11-3 Shinjuku 1-chome, Shinjuku-k, Tokyo 22, JP)
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