EP1389684B1 - Pompe d'amorçage multicouche. - Google Patents

Pompe d'amorçage multicouche. Download PDF

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Publication number
EP1389684B1
EP1389684B1 EP03291743A EP03291743A EP1389684B1 EP 1389684 B1 EP1389684 B1 EP 1389684B1 EP 03291743 A EP03291743 A EP 03291743A EP 03291743 A EP03291743 A EP 03291743A EP 1389684 B1 EP1389684 B1 EP 1389684B1
Authority
EP
European Patent Office
Prior art keywords
priming pump
inner layer
layer
envelope
polyamide
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.)
Expired - Lifetime
Application number
EP03291743A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1389684A1 (fr
Inventor
Nathalie Proust
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.)
Nobel Plastiques SA
Original Assignee
Nobel Plastiques SA
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 Nobel Plastiques SA filed Critical Nobel Plastiques SA
Priority to SI200331475T priority Critical patent/SI1389684T1/sl
Publication of EP1389684A1 publication Critical patent/EP1389684A1/fr
Application granted granted Critical
Publication of EP1389684B1 publication Critical patent/EP1389684B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • 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
    • F02M37/04—Feeding by means of driven pumps
    • F02M37/16—Feeding by means of driven pumps characterised by provision of personally-, e.g. manually-, operated pumps

Definitions

  • the invention relates to a priming pump intended in particular to equip a fuel supply circuit of a motor vehicle.
  • Priming pumps made of elastomer and having an envelope with an elastically deformable central zone between a state of rest in which the envelope has a maximum volume and a pressed state are known.
  • the envelope comprises connection zones at the inlet and at the outlet of the central zone which comprise directional valves arranged to allow the passage of the fluid in a given direction as the pressures exerted on the envelope.
  • the new motor engines (including diesel engines with common injection rail) have the particularity of working at a high average temperature, the fuel can for example be increased to 125 ° Celsius continuously or 150 ° Celsius peak.
  • the priming pumps can be mounted in parallel with the injection pump on the supply circuit and no longer in series with it, so that that the inside of the priming pump is no longer swept by the fuel flow but on the contrary contains stagnant fuel.
  • the additives contained in the new fuels provided for this type of engine are particularly corrosive to the material of the envelope, especially at high temperature.
  • the stagnant fuel infiltrates naturally into the pores of the shell material, which tends to wash the latter of the loads included in the material which give it elasticity.
  • Document is known US 2,954,048 a single layer elastomer pump.
  • the document US 3,987,775 describes a pump with two independent concentric envelopes, the outer envelope being more rigid, and the inner flexible envelope.
  • the invention aims to provide a priming pump does not have the aforementioned drawbacks.
  • a multilayer priming pump with an envelope comprising an elastic outer layer of elastomeric material and an inner layer forming a barrier for the fluid present inside the pump.
  • the inner layer prevents the fuel from entering or chemically reacting with the elastomer of the outer layer.
  • the latter can be made of a current type elastomer, which, subject only to temperature variations, is able to keep its elastic properties over time.
  • the casing thus obtained is certainly more expensive than a monolayer elastomer casing current, but still remains at a much lower cost than a monolayer envelope fluoroelastomer. In addition, its recycling is easier.
  • a priming pump casing comprises in known manner a central zone 1 of large diameter and deformable by hand, the central zone being associated with connecting zones 2 which extend from one side to another. other of this and which contain directional valves (not shown).
  • the casing of the priming pump is multilayer and comprises an outer layer 3 and an inner layer 4.
  • the outer layer 3 is here made of elastomer of the current type, preferably a thermoplastic based on polyether ester (TPEE), which makes it possible to give the central zone 1 of the envelope a good elasticity and which is resistant to variations high temperatures.
  • TPEE polyether ester
  • an intermediate bonding layer may be provided between the outer layer 3 and the inner layer 4 to ensure good adhesion of the two layers together.
  • the materials recommended according to the invention for the inner layer 4 are generally less elastic than the material used for the outer layer 3, so that the thicknesses of the layers are likely to affect the elasticity of the priming pump.
  • the central zone 1 of the envelope has a diameter of 40 mm, the minimum thicknesses of the inner and outer layers being 0.3 mm and 0.55 mm respectively, while the connecting zones 2 have a diameter of 21 mm and the minimum thicknesses of the inner and outer layers are 0.55 mm and 0.85 mm respectively.
  • the inner layer has a local relative thickness of between 30% and 40% of the total local thickness of the envelope.
  • This range of relative thickness makes it possible to preserve a satisfactory elasticity of the envelope.
  • Such priming pumps can be obtained by coextrusion of the constituent layers of the pumps to form a multilayer tube, then forming the tube (for example by means of a mobile mold device placed at the extruder outlet) in a series of pumps. of priming, that it is enough then to debit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Laminated Bodies (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • External Artificial Organs (AREA)
  • Rotary Pumps (AREA)
  • Production Of Multi-Layered Print Wiring Board (AREA)
EP03291743A 2002-08-13 2003-07-15 Pompe d'amorçage multicouche. Expired - Lifetime EP1389684B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200331475T SI1389684T1 (sl) 2002-08-13 2003-07-15 Večplastna črpalka za nasesavanje

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0210265A FR2843619B1 (fr) 2002-08-13 2002-08-13 Pompe d'amorcage multicouche
FR0210265 2002-08-13

Publications (2)

Publication Number Publication Date
EP1389684A1 EP1389684A1 (fr) 2004-02-18
EP1389684B1 true EP1389684B1 (fr) 2008-09-24

Family

ID=30471098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03291743A Expired - Lifetime EP1389684B1 (fr) 2002-08-13 2003-07-15 Pompe d'amorçage multicouche.

Country Status (12)

Country Link
US (1) US7021195B2 (es)
EP (1) EP1389684B1 (es)
JP (1) JP2004076729A (es)
AT (1) ATE409284T1 (es)
BR (1) BR0302754A (es)
DE (1) DE60323714D1 (es)
ES (1) ES2314166T3 (es)
FR (1) FR2843619B1 (es)
MX (1) MXPA03007057A (es)
PL (1) PL361511A1 (es)
RU (1) RU2277184C2 (es)
SI (1) SI1389684T1 (es)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1832097A1 (en) * 2004-12-29 2007-09-12 Telefonaktiebolaget LM Ericsson (publ) Interception of cashless calling service subscription
US8631777B2 (en) 2008-02-08 2014-01-21 Bluskies International Llc Rigid primer bulb pump
US8069830B2 (en) * 2008-02-08 2011-12-06 Christopher Brown Rigid primer bulb pump
FR2941500B1 (fr) * 2009-01-29 2011-07-15 Peugeot Citroen Automobiles Sa Pompe d'amorcage manuelle d'un circuit d'alimentation en carburant d'un moteur a combustion
FR2948731B1 (fr) 2009-07-29 2014-05-09 Peugeot Citroen Automobiles Sa Dispositif et procede d'amorcage d'un circuit de carburant d'un moteur a combustion
US8403654B2 (en) * 2010-03-31 2013-03-26 Rl Hudson & Company Low fuel permeation primer bulb
US20120070325A1 (en) * 2010-09-17 2012-03-22 Wireman Justin Mccord Multi-layer primer apparatus and methods
CN102452092B (zh) 2010-10-28 2015-04-01 吉列公司 分配液体的毛发移除装置
CN102452088B (zh) 2010-10-28 2015-07-01 吉列公司 具有刀片架保持覆盖件的毛发移除装置
CN102452091B (zh) 2010-10-28 2015-08-12 吉列公司 用于毛发移除装置的具有导流板的施用装置
CN102452085B (zh) 2010-10-28 2016-01-27 吉列公司 用于分配液体的毛发移除装置的泵
CN102452095B (zh) 2010-10-28 2014-10-29 吉列公司 用于分配液体的毛发移除装置的施用装置
CN102452094A (zh) 2010-10-28 2012-05-16 吉列公司 分配液体的毛发移除套件
US9156175B2 (en) 2011-12-09 2015-10-13 The Gillette Company Fluid applicator for a personal-care appliance
CN102410116A (zh) * 2011-12-19 2012-04-11 芜湖盛力制动有限责任公司 商用车柴油机燃油系统手动输油泵
CN113565659A (zh) * 2021-07-20 2021-10-29 河北华北柴油机有限责任公司 一种手打燃油泵可靠性考核方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US523345A (en) * 1894-07-24 Syringe
GB684598A (en) * 1946-12-09 1952-12-24 Carter Carburetor Corp Coated fabrics suitable for use as a diaphragm for a fuel pump
US2954048A (en) * 1959-02-05 1960-09-27 Frank J Rychlik Pump and valve therefor
US3839983A (en) * 1973-02-05 1974-10-08 Ausland R Mc Bilge pump having snubbing action
JPS5163502U (es) * 1974-11-14 1976-05-19
US3987775A (en) * 1975-04-16 1976-10-26 Walbro Corporation Squeeze-tube primer for internal combustion engines
JPS52149604A (en) * 1976-06-07 1977-12-12 Walbro Corp Primer pumps
JPS57134377U (es) * 1981-02-18 1982-08-21
JPS61130756U (es) * 1985-01-31 1986-08-15
US4886432A (en) * 1988-06-23 1989-12-12 Engineering Enterprises, Inc. Bladder pump assembly
JPH0447185U (es) * 1990-08-24 1992-04-22
WO1994010491A1 (fr) * 1992-10-30 1994-05-11 Nobel Plastiques Canalisation de fluide realisee en matiere plastique
FR2703403B1 (fr) * 1993-03-29 1995-07-07 Meillor Sa Poire d'amorçage notamment d'un circuit de carburant pour moteur diesel.
JPH09234827A (ja) * 1996-02-28 1997-09-09 Toyoda Gosei Co Ltd 層状成形体
US5970935A (en) * 1998-09-03 1999-10-26 Federal-Mogul World Wide, Inc. Fuel system primer bulb
JP4556333B2 (ja) * 2000-10-03 2010-10-06 東海ゴム工業株式会社 自動車用ホース

Also Published As

Publication number Publication date
RU2003125140A (ru) 2005-02-27
ES2314166T3 (es) 2009-03-16
EP1389684A1 (fr) 2004-02-18
FR2843619B1 (fr) 2006-01-06
DE60323714D1 (de) 2008-11-06
US20040033143A1 (en) 2004-02-19
US7021195B2 (en) 2006-04-04
JP2004076729A (ja) 2004-03-11
MXPA03007057A (es) 2004-10-15
SI1389684T1 (sl) 2009-04-30
RU2277184C2 (ru) 2006-05-27
ATE409284T1 (de) 2008-10-15
FR2843619A1 (fr) 2004-02-20
PL361511A1 (en) 2004-02-23
BR0302754A (pt) 2004-08-24

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