EP0280923A2 - Amortisseur de vibrations d'un collecteur dans un moteur - Google Patents

Amortisseur de vibrations d'un collecteur dans un moteur Download PDF

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Publication number
EP0280923A2
EP0280923A2 EP88101766A EP88101766A EP0280923A2 EP 0280923 A2 EP0280923 A2 EP 0280923A2 EP 88101766 A EP88101766 A EP 88101766A EP 88101766 A EP88101766 A EP 88101766A EP 0280923 A2 EP0280923 A2 EP 0280923A2
Authority
EP
European Patent Office
Prior art keywords
fuel
diaphragm
closed
rail
pulse dampener
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.)
Withdrawn
Application number
EP88101766A
Other languages
German (de)
English (en)
Other versions
EP0280923A3 (fr
Inventor
Charles Henry Tuckey
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.)
Walbro Corp
Original Assignee
Walbro Corp
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 Walbro Corp filed Critical Walbro Corp
Publication of EP0280923A2 publication Critical patent/EP0280923A2/fr
Publication of EP0280923A3 publication Critical patent/EP0280923A3/fr
Withdrawn legal-status Critical Current

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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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0041—Means for damping pressure pulsations
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
    • 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
    • F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
    • F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
    • F02M37/0017—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor related to fuel pipes or their connections, e.g. joints or sealings

Definitions

  • a fuel tank 20 has a fuel pump 22 and an outlet fuel line 24 leading to a fuel rail 26 mounting fuel injectors 28 for a four-cylinder engine.
  • the injectors 28 introduce fuel into the engine manifold 30.
  • the fuel rail is shown in section in Fig. 2.
  • the fuel rail has multiple fittings 27 to mount the fuel injectors.
  • a fuel return line 32 returns fuel to a pressure regulator 34 and thence to a tank return line 36.
  • a pulse dampener 40 mounted on a T-connection 42.
  • This connection can be a Schroeder fitting with a threaded nipple to mount the pulse dampener.
  • the dampener may mount directly on a Schroeder fitting on the fuel rail.
  • a pulse dampener 40 is illustrated having a body 44 with a central bore 45 having a bottom threaded recess 46 to be mounted on the Schroeder fitting 42.
  • the body has a top flange 48 which is spun at 49 over the inner walls of a collar 50 in sealing relation to a captured O-ring 52.
  • An O-ring 54 at the top of recess 46 seals the mounting of the body.
  • annular recess 60 In the collar 50 around and above the spun portion 49 is an annular recess 60 with a beveled side terminating at a flat annular rim 62 which is recessed to receive an O-ring seal 64.
  • a diaphragm 66 has a peripheral edge overlying the rim 62 and the O-ring 64.
  • a retaining closure cap 70 has a downturned flange 72 spun in around the base of the collar 50 to seal a chamber 74 between the flat top of cap 70 and the diaphragm 66.
  • the diaphragm is dished to form a concavity with a flat central riser portion 76 providing the bottom wall of the sealed chamber 74.
  • the diaphragm 66 is open to the central bore 45 of the body 44 and is preferably formed of stainless steel.
  • FIG. 4 a structure similar to that shown in FIG. 3 in the form of a pulse dampener 80 in which like parts are marked with like reference characters.
  • a modified cap 82 is affixed to the body 50 in the same manner as described in connection with FIG. 3.
  • the cap 82 is preferably formed with a raised crown portion 84 shown in dotted lines and assembled in this form.
  • a formed die with a convex surface (not shown) is then used to depress the surface 84 to compress air within the chamber 86 above the diaphragm 74.
  • the amount of compression or deflection of the cap can be calibrated to achieve the proper dampening effect for a particular operating pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
EP88101766A 1987-03-06 1988-02-05 Amortisseur de vibrations d'un collecteur dans un moteur Withdrawn EP0280923A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2274287A 1987-03-06 1987-03-06
US22742 1998-02-12

Publications (2)

Publication Number Publication Date
EP0280923A2 true EP0280923A2 (fr) 1988-09-07
EP0280923A3 EP0280923A3 (fr) 1989-02-22

Family

ID=21811199

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101766A Withdrawn EP0280923A3 (fr) 1987-03-06 1988-02-05 Amortisseur de vibrations d'un collecteur dans un moteur

Country Status (2)

Country Link
EP (1) EP0280923A3 (fr)
JP (1) JPS6445961A (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321998A1 (de) * 1993-07-01 1995-01-12 Kloeckner Humboldt Deutz Ag Pulsationsdämpfung bei einer Kraftstoffeinspritzanlage
EP0678664A3 (fr) * 1994-04-22 1996-05-15 Mitsubishi Electric Corp Dispositif d'alimentation en carburant et régulateur de pression.
WO1997008454A1 (fr) * 1995-08-30 1997-03-06 Robert Bosch Gmbh Pompe d'injection de carburant
WO1999061783A1 (fr) * 1998-05-28 1999-12-02 Siemens Automotive Corporation Amortisseur de rail de carburant
FR2790287A1 (fr) * 1999-02-26 2000-09-01 Mitsubishi Electric Corp Absorbeur de pulsations du type a diaphragme metallique pour pompe a carburant a haute pression
DE19946258C2 (de) * 1998-09-28 2002-06-20 Manfred Schmidt Pulsationsdämpfer für den Einsatz in einem Rohrsystem für Flüssigkeiten
EP0950809A3 (fr) * 1998-04-15 2002-12-11 Mitsubishi Denki Kabushiki Kaisha Accumulateur à haute pression
CN103174571A (zh) * 2011-12-07 2013-06-26 安德烈亚斯.斯蒂尔两合公司 带有燃料输送装置的内燃机
US9016165B2 (en) 2011-12-07 2015-04-28 Andreas Stihl Ag & Co. Kg Power tool with Bowden cable
US9175594B2 (en) 2011-12-07 2015-11-03 Andreas Stihl Ag & Co. Kg Power tool
US9534528B2 (en) 2011-12-07 2017-01-03 Andreas Stihl Ag & Co. Kg Internal combustion engine with fuel system
US10329994B2 (en) 2011-12-07 2019-06-25 Andreas Stihl Ag & Co. Kg Power tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100541264B1 (ko) * 1999-11-04 2006-01-10 아이세로가가꾸가부시끼가이샤 고순도 약품액용 용기

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2612215A (en) * 1948-09-15 1952-09-30 Edwards Miles Lowell Airplane fuel system with pressure accumulator
US4205637A (en) * 1976-12-13 1980-06-03 Toyota Jidosha Kogyo Kabushiki Kaisha Electronic fuel injection system for an internal combustion engine having electromagnetic valves and a fuel damper upstream thereof
JPS555429A (en) * 1978-06-23 1980-01-16 Nissan Motor Co Ltd Pressure regulator for fuel injection type gasoline engine
DE3152860A1 (de) * 1981-05-14 1983-07-14 Robert Bosch Gmbh, 7000 Stuttgart Daempferelement
US4649884A (en) * 1986-03-05 1987-03-17 Walbro Corporation Fuel rail for internal combustion engines

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321998B4 (de) * 1993-07-01 2004-04-08 Deutz Ag Pulsationsdämpfung bei einer Kraftstoffeinspritzanlage
DE4321998A1 (de) * 1993-07-01 1995-01-12 Kloeckner Humboldt Deutz Ag Pulsationsdämpfung bei einer Kraftstoffeinspritzanlage
EP0678664A3 (fr) * 1994-04-22 1996-05-15 Mitsubishi Electric Corp Dispositif d'alimentation en carburant et régulateur de pression.
US5655504A (en) * 1994-04-22 1997-08-12 Mitsubishi Denki Kabushiki Kaisha Fuel supplying apparatus and pressure regulator
WO1997008454A1 (fr) * 1995-08-30 1997-03-06 Robert Bosch Gmbh Pompe d'injection de carburant
EP0950809A3 (fr) * 1998-04-15 2002-12-11 Mitsubishi Denki Kabushiki Kaisha Accumulateur à haute pression
WO1999061783A1 (fr) * 1998-05-28 1999-12-02 Siemens Automotive Corporation Amortisseur de rail de carburant
DE19946258C2 (de) * 1998-09-28 2002-06-20 Manfred Schmidt Pulsationsdämpfer für den Einsatz in einem Rohrsystem für Flüssigkeiten
FR2790287A1 (fr) * 1999-02-26 2000-09-01 Mitsubishi Electric Corp Absorbeur de pulsations du type a diaphragme metallique pour pompe a carburant a haute pression
CN103174571A (zh) * 2011-12-07 2013-06-26 安德烈亚斯.斯蒂尔两合公司 带有燃料输送装置的内燃机
EP2602471A3 (fr) * 2011-12-07 2014-12-17 Andreas Stihl AG & Co. KG Moteur à combustion interne avec un système d'alimentation en carburant
US9016165B2 (en) 2011-12-07 2015-04-28 Andreas Stihl Ag & Co. Kg Power tool with Bowden cable
US9175594B2 (en) 2011-12-07 2015-11-03 Andreas Stihl Ag & Co. Kg Power tool
US9534528B2 (en) 2011-12-07 2017-01-03 Andreas Stihl Ag & Co. Kg Internal combustion engine with fuel system
US10329994B2 (en) 2011-12-07 2019-06-25 Andreas Stihl Ag & Co. Kg Power tool

Also Published As

Publication number Publication date
EP0280923A3 (fr) 1989-02-22
JPS6445961A (en) 1989-02-20

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