JP2009257282A5 - - Google Patents

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Publication number
JP2009257282A5
JP2009257282A5 JP2008110033A JP2008110033A JP2009257282A5 JP 2009257282 A5 JP2009257282 A5 JP 2009257282A5 JP 2008110033 A JP2008110033 A JP 2008110033A JP 2008110033 A JP2008110033 A JP 2008110033A JP 2009257282 A5 JP2009257282 A5 JP 2009257282A5
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JP
Japan
Prior art keywords
fuel injection
maximum displacement
displacement point
injection rail
planar shape
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JP2008110033A
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Japanese (ja)
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JP2009257282A (en
JP5208566B2 (en
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Priority to JP2008110033A priority Critical patent/JP5208566B2/en
Priority claimed from JP2008110033A external-priority patent/JP5208566B2/en
Publication of JP2009257282A publication Critical patent/JP2009257282A/en
Publication of JP2009257282A5 publication Critical patent/JP2009257282A5/ja
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Claims (7)

インジェクタを取り付けるための複数のインジェクタカップが長さ方向に配列された本体部を有するフューエルデリバリパイプにおいて、
フューエルデリバリパイプの前記本体部を形成する各面のうち、圧力変動による最大変位点を有する面における該本体部の投影形状が、略長方形または円ではないことを特徴とするフューエルインジェクションレール。 In a fuel delivery pipe having a main body portion in which a plurality of injector cups for attaching an injector are arranged in a length direction,
A fuel injection rail, wherein a projected shape of the main body portion on a surface having a maximum displacement point due to pressure fluctuation among the surfaces forming the main body portion of the fuel delivery pipe is not substantially rectangular or circle . 前記本体部の投影形状において、前記最大変位点を中心として、外径をなす直線または曲線と接する円弧を半径が小さいほうからＣ1、Ｃ2、Ｃ3、…とし、それぞれ内接円の半径を順にＲ1、Ｒ2、Ｒ3、…としたときに、
Ｒ1≦Ｒ2≦Ｒ3≦３Ｒ1
の関係を満足すること（但し、３つ以上の円弧が存在しない場合は、Ｒ2＝Ｒ3とする）を特徴とする請求項１に記載のフューエルインジェクションレール。 In the projection shape of the body part, around the said maximum displacement point, C1 an arc in contact with the straight or curved forming the outer diameter of more small radius, C2, C3, ... and then, the radius of each inscribed circle turn R1 , R2, R3 , ...
R1≤R2≤R3≤3R1
2. The fuel injection rail according to claim 1, wherein the relationship is satisfied (provided that R2 = R3 when three or more arcs do not exist) . 前記最大変位点を有する面は、略五角形の平面形状を有することを特徴とする請求項２に記載のフューエルインジェクションレール。 The fuel injection rail according to claim 2, wherein the surface having the maximum displacement point has a substantially pentagonal planar shape. 前記最大変位点を有する面は、略菱形の平面形状を有することを特徴とする請求項２に記載のフューエルインジェクションレール。 The fuel injection rail according to claim 2, wherein the surface having the maximum displacement point has a substantially rhombic planar shape. 前記最大変位点を有する面は、略三角形の平面形状を有することを特徴とする請求項２に記載のフューエルインジェクションレール。   The fuel injection rail according to claim 2, wherein the surface having the maximum displacement point has a substantially triangular planar shape. 前記最大変位点を有する面は、楕円形の平面形状を有することを特徴とする請求項２に記載のフューエルインジェクションレール。 It said surface having a maximum displacement point, Fuel Injection rail according to claim 2, characterized in that it has a planar shape of an ellipse. 前記最大変位点を有する面は、前記面の一部が請求項２乃至６のいずれかの項に記載の平面形状を一部に含むことを特徴とするフューエルインジェクションレール。   The fuel injection rail, wherein the surface having the maximum displacement point includes a part of the planar shape according to any one of claims 2 to 6.
JP2008110033A 2008-04-21 2008-04-21 Fuel injection rail Active JP5208566B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008110033A JP5208566B2 (en) 2008-04-21 2008-04-21 Fuel injection rail

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2008110033A JP5208566B2 (en) 2008-04-21 2008-04-21 Fuel injection rail

Publications (3)

Publication Number Publication Date
JP2009257282A JP2009257282A (en) 2009-11-05
JP2009257282A5 true JP2009257282A5 (en) 2011-06-16
JP5208566B2 JP5208566B2 (en) 2013-06-12

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ID=41384991

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2008110033A Active JP5208566B2 (en) 2008-04-21 2008-04-21 Fuel injection rail

Country Status (1)

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JP (1) JP5208566B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2989122B1 (en) 2012-04-10 2016-02-05 Coutier Moulage Gen Ind FUEL INJECTION RAMP FOR INTERNAL COMBUSTION ENGINE

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2704468B2 (en) * 1991-08-14 1998-01-26 株式会社ケーヒン Manufacturing method of synthetic resin fuel distribution pipe
JP4159833B2 (en) * 2002-09-02 2008-10-01 三桜工業株式会社 Fuel delivery pipe
JP2007032374A (en) * 2005-07-25 2007-02-08 Usui Kokusai Sangyo Kaisha Ltd Fuel delivery pipe

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