FR3021364B1 - FUEL INJECTION RAMP AND CORRESPONDING VEHICLE. - Google Patents

FUEL INJECTION RAMP AND CORRESPONDING VEHICLE. Download PDF

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Publication number
FR3021364B1
FR3021364B1 FR1454685A FR1454685A FR3021364B1 FR 3021364 B1 FR3021364 B1 FR 3021364B1 FR 1454685 A FR1454685 A FR 1454685A FR 1454685 A FR1454685 A FR 1454685A FR 3021364 B1 FR3021364 B1 FR 3021364B1
Authority
FR
France
Prior art keywords
ramp
fuel injection
wall
injection ramp
corresponding vehicle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
FR1454685A
Other languages
French (fr)
Other versions
FR3021364A1 (en
Inventor
Eric Magere
Joseph Lefebvre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Original Assignee
Renault SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renault SAS filed Critical Renault SAS
Priority to FR1454685A priority Critical patent/FR3021364B1/en
Publication of FR3021364A1 publication Critical patent/FR3021364A1/en
Application granted granted Critical
Publication of FR3021364B1 publication Critical patent/FR3021364B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
    • F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
    • F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
    • F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/26—Fuel-injection apparatus with elastically deformable elements other than coil springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
    • F02M2200/31—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements
    • F02M2200/315—Fuel-injection apparatus having hydraulic pressure fluctuations damping elements for damping fuel pressure fluctuations

Abstract

L'invention concerne une rampe (1) d'injection de carburant pour moteur à combustion interne, la rampe (1) d'injection comprenant un corps (2) doté d'une paroi (5) s'étendant suivant un axe longitudinal, la paroi (5) comportant une partie apte à se déformer sous l'effet d'une augmentation de pression à l'intérieur de la rampe (1) entre une forme au repos et une forme active. Selon l'invention, la paroi (5) présente une surface externe (8) dont les sections transversales (9) ont une forme ondulée sensiblement sinusoïdale, dans la forme de repos ainsi que dans la forme active de la rampe (1).The invention relates to a fuel injection ramp (1) for an internal combustion engine, the injection ramp (1) comprising a body (2) having a wall (5) extending along a longitudinal axis, the wall (5) having a part able to deform under the effect of a pressure increase inside the ramp (1) between a rest form and an active form. According to the invention, the wall (5) has an outer surface (8) whose cross sections (9) have a substantially sinusoidal undulating shape, in the rest form as well as in the active form of the ramp (1).

FR1454685A 2014-05-23 2014-05-23 FUEL INJECTION RAMP AND CORRESPONDING VEHICLE. Active FR3021364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1454685A FR3021364B1 (en) 2014-05-23 2014-05-23 FUEL INJECTION RAMP AND CORRESPONDING VEHICLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1454685 2014-05-23
FR1454685A FR3021364B1 (en) 2014-05-23 2014-05-23 FUEL INJECTION RAMP AND CORRESPONDING VEHICLE.

Publications (2)

Publication Number Publication Date
FR3021364A1 FR3021364A1 (en) 2015-11-27
FR3021364B1 true FR3021364B1 (en) 2019-03-29

Family

ID=51168233

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1454685A Active FR3021364B1 (en) 2014-05-23 2014-05-23 FUEL INJECTION RAMP AND CORRESPONDING VEHICLE.

Country Status (1)

Country Link
FR (1) FR3021364B1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7493892B1 (en) * 2007-12-27 2009-02-24 Robert Bosch Gmbh Self-damping fuel rail
JP5592116B2 (en) * 2010-01-29 2014-09-17 愛三工業株式会社 Delivery pipe
JP5947491B2 (en) * 2010-11-17 2016-07-06 三桜工業株式会社 Fuel injection rail
FR2989122B1 (en) * 2012-04-10 2016-02-05 Coutier Moulage Gen Ind FUEL INJECTION RAMP FOR INTERNAL COMBUSTION ENGINE

Also Published As

Publication number Publication date
FR3021364A1 (en) 2015-11-27

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